China eSIM First Time Beginner Guide

An eSIM is a programmable chip inside your phone that connects to mobile networks without a physical SIM card. For China travel, an international eSIM with Hong Kong routing provides data access that bypasses the Great Firewall — Google, WhatsApp, and Instagram work normally. This guide covers phone compatibility, step-by-step setup, common mistakes, free trials, and customer support contacts for first-time eSIM users.

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What is an eSIM? A Simple Explanation for Complete Beginners

An eSIM stands for embedded SIM. It is a tiny programmable chip soldered inside your phone that does exactly what a physical SIM card does — it connects your phone to a mobile network — but without the plastic card.

Physical SIM vs eSIM Analogy

Think of a physical SIM card like a hotel key card. You walk in, they hand you the card, you insert it into your phone, and now your phone is “registered” with that hotel’s network. If you want to switch to a different hotel, you need to go back, return the card, and get a new one.

An eSIM is like a digital membership card stored in an app on your phone. You sign up online, the provider sends you a digital profile, your phone downloads it, and you are connected. If you want to switch providers, you delete the old digital profile and download a new one. No waiting for a card to arrive in the mail. No tiny tray and paperclip.

The “e” in eSIM does not stand for “electronic” — it stands for “embedded,” because the chip is embedded into the phone’s motherboard during manufacturing. But practically speaking, it means you can switch carriers without touching any hardware.

Why This Matters for China Travel

A China eSIM is particularly useful because of how internet access works in the country. China’s Great Firewall blocks Google, Gmail, WhatsApp, Instagram, Facebook, YouTube, and hundreds of other sites and services. If you buy a local physical SIM card from China Mobile or China Unicom at the airport, your data goes through Chinese servers, and those sites remain blocked.

Many international travel eSIMs for China work differently. They connect to a Chinese carrier’s network on the backend, but they route your internet traffic through servers outside China — typically Hong Kong or Singapore. This means the Great Firewall never touches your data. You land in Shanghai, turn on your eSIM, and Google Maps, WhatsApp, and Instagram work exactly as they do at home. A china eSIM with automatic carrier switching ensures you connect to the strongest available network — China Mobile, Unicom, or Telecom — as you move through different areas, maintaining reliable speeds for all these apps.

This is the main reason travelers choose eSIM over local physical SIM cards. It is not just about convenience — it is about actually being able to use the apps you rely on.

GSMA, the global trade body that standardized eSIM technology, reports that eSIM adoption in Asia-Pacific grew over 340% between 2023 and 2026. China travel eSIMs specifically have seen explosive growth as more travelers discover they can bypass the firewall without configuring a separate VPN.

How eSIM Technology Actually Works

Here is a slightly more technical explanation without getting too deep.

Your phone contains a small tamper-resistant chip called an eUICC (embedded Universal Integrated Circuit Card). This chip stores one or more eSIM profiles. Each profile is a small software package that contains your authentication key, the network operator’s details, and configuration settings like APN information.

When you scan a QR code from an eSIM provider, your phone downloads an encrypted profile onto this chip. The profile communicates with the mobile network to authenticate you, just like a physical SIM would. The difference is that you can store multiple profiles (eight or more on newer iPhones) and switch between them without touching any hardware.

Wikipedia’s article on eSIM technology provides a thorough technical overview of how remote SIM provisioning works.

eSIM vs Physical SIM: Quick Comparison

Feature	Physical SIM	eSIM
Installation	Insert card into tray	Download digital profile
Switching carriers	Swap physical card	Switch profile in settings
Lost card	Must buy new one	Re-download profile
Multiple lines	Dual SIM tray (2 cards max)	Up to 8 profiles, 2 active
Pre-travel setup	Must buy at destination	Install before you fly
Firewall bypass	Needs separate VPN	Built into many providers
Risk of losing	Small card can fall out	Nothing physical to lose

What eSIM Cannot Do

A few honest limitations before you get excited:

• Most China eSIMs are data-only. You get mobile data, but you cannot make voice calls or send SMS through the eSIM number. Your regular home SIM card still handles calls and texts.
• You cannot receive SMS verification codes on a data-only eSIM. This matters for banking apps and two-factor authentication. The workaround is to keep your home SIM active in a dual-SIM setup so it receives SMS while the eSIM provides data.
• Some phones are not compatible. We cover this in the next section.

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Does eSIM Work with All Phones? Compatibility Guide

Not every phone supports eSIM. Here is exactly which phones work and which do not.

Apple iPhone

All iPhone models from the iPhone XS, XS Max, and XR (released in 2018) and newer support eSIM. This includes:

• iPhone XS / XS Max / XR
• iPhone 11, 11 Pro, 11 Pro Max
• iPhone 12, 12 mini, 12 Pro, 12 Pro Max
• iPhone 13, 13 mini, 13 Pro, 13 Pro Max
• iPhone 14, 14 Plus, 14 Pro, 14 Pro Max
• iPhone 15, 15 Plus, 15 Pro, 15 Pro Max
• iPhone 16, 16 Plus, 16 Pro, 16 Pro Max
• iPhone 17, 17 Plus, 17 Pro, 17 Pro Max
• iPhone SE (2nd generation and later)

Critical exception for China travelers: iPhones purchased in mainland China, Hong Kong, and Macau have the eSIM feature physically disabled at the hardware level. If you bought your iPhone from an Apple Store in Beijing, Shanghai, or Hong Kong, it will not support eSIM no matter what you do. You will need a physical SIM card or a pocket WiFi device.

Apple’s official eSIM support page provides the full compatibility list.

Samsung Galaxy

Samsung introduced eSIM support with the Galaxy S20 series in 2020. Compatible models include:

• Galaxy S20, S20+, S20 Ultra, S20 FE
• Galaxy S21, S21+, S21 Ultra, S21 FE
• Galaxy S22, S22+, S22 Ultra
• Galaxy S23, S23+, S23 Ultra
• Galaxy S24, S24+, S24 Ultra
• Galaxy S25, S25+, S25 Ultra
• Galaxy Z Fold (all generations), Z Flip (all generations)
• Galaxy Note 20, Note 20 Ultra

Important: Some US carrier-locked Samsung phones (Verizon, AT&T, T-Mobile) do not support eSIM even if the hardware is capable. If your Samsung phone came from a US carrier, check with them before buying.

Samsung’s eSIM support documentation covers model-specific details.

Google Pixel

Google Pixel phones have supported eSIM since the Pixel 4 (released 2019). All newer models work:

• Pixel 4, 4 XL
• Pixel 5, 5a
• Pixel 6, 6 Pro, 6a
• Pixel 7, 7 Pro, 7a
• Pixel 8, 8 Pro, 8a
• Pixel 9, 9 Pro, 9 XL, 9a
• Pixel 10, 10 Pro

Google’s eSIM help page has the full list.

Other Android Phones

• OnePlus: Models from the OnePlus 11 onward support eSIM. Earlier models do not.
• Xiaomi, Oppo, Vivo: International models (non-Chinese) generally support eSIM. Chinese domestic models generally do not.
• Huawei: Huawei phones from the P40 onward have eSIM hardware, but US sanctions prevent them from easily installing eSIM profiles. Workarounds exist but are not reliable enough to depend on while traveling.
• Sony Xperia: Select models (Xperia 1 IV, 1 V, 5 IV, 5 V) support eSIM.

How to Check if Your Phone Supports eSIM

Quickest method:

iPhone: Settings → Cellular → Add eSIM. If you see this option, your phone supports eSIM.

Samsung: Settings → Connections → SIM card manager → Add eSIM. If you see this option, your phone supports eSIM.

Google Pixel: Settings → Network & internet → SIMs → Add eSIM.

General: Dial *#06# on your phone. If you see an EID number (a 32-digit code), your phone has eSIM hardware.

A Note About Carrier-Locked Phones

If your phone is locked to a specific carrier (for example, a Verizon-locked iPhone or an AT&T-locked Samsung), you may not be able to add a foreign eSIM. Carrier locks prevent you from using other networks. You need an unlocked phone for a China travel eSIM to work.

To check if your phone is unlocked: try inserting a SIM card from a different carrier. If it works, your phone is unlocked.

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How Do I Set Up a China eSIM? First-Time Checklist from Zero

This section walks you through everything from buying to connecting. Follow these steps in order and you will have a working China eSIM before you board the plane.

Step 1: Choose a Provider

The major China eSIM providers for travelers in 2026 are:

• Airalo — The largest eSIM marketplace. Wide selection but no built-in VPN.
• Holafly — Unlimited data plans with built-in VPN. Popular with tourists.
• Roami — Automatic carrier switching (you do not need to manually select a network), 24/7 live human support, and a free trial option. Particularly beginner-friendly because there is no APN configuration required on most devices. If you want a reliable china esim that just works when you land, this is worth considering.
• Nomad — Competitive pricing with large data tiers (up to 50GB). Uses routing-based firewall bypass.
• Ubigi — Reliable coverage on China Telecom’s network. Good pricing on smaller data tiers.
• Saily — Built on NordVPN infrastructure. Built-in VPN included.

If you want the simplest possible experience as a first-time user, look for a provider that offers automatic carrier switching (so you do not need to manually choose a network after landing) and 24/7 live support (so someone can help if you get stuck). a China eSIM is one example that handles both — the app Roami offers automatically switches between China Mobile, China Unicom, and China Telecom based on signal strength, and you can reach a live human via in-app chat at any hour.

Our China eSIM provider ranking and comparison guide breaks down every option in detail, including speed tests and real user reviews for each provider.

Step 2: Buy Your eSIM Plan (Before You Travel)

Buy your eSIM before you leave for China. Here is why:

• You need internet access to download the eSIM profile. If you wait until you land, you might not have WiFi to complete the installation.
• Most eSIM profiles activate when they first connect to a supported network. If you install before you leave, the plan starts when you land.
• If something goes wrong, you want to troubleshoot from home where you have full internet access.

Go to your chosen provider’s website or download their app. Select China as the destination. Choose a data amount based on your trip length:

Trip Length	Recommended Data	Good For
2-3 days (transit/visa run)	1-3GB	Maps, WeChat, light browsing
3-5 days (short city trip)	3GB	Navigation, social apps, messaging
1 week (typical tourist trip)	5GB	Maps, social media, occasional video
2 weeks (extended stay)	10GB	All of the above plus streaming
1 month (business/digital nomad)	20GB+ or unlimited	Heavy usage, hotspot sharing

Payment methods: Most providers accept Visa, Mastercard, American Express, and PayPal. Some also accept Apple Pay and Google Pay. Chinese payment methods like Alipay and WeChat Pay are rarely accepted on international eSIM storefronts, so have an international card ready.

Confirmation and delivery: After payment, you will receive an email with a QR code and installation instructions. The QR code is your eSIM profile. It may take 1-5 minutes to arrive. If it does not arrive, check your spam folder before contacting support.

For a detailed breakdown of what each plan costs and which provider offers the best value at each data tier, see the China eSIM price and purchase guide.

Step 3: Install the eSIM Profile

After purchase, you will receive a QR code via email or in the provider’s app. Some providers also allow you to tap a link directly on your phone, which skips the QR scanning step entirely.

On iPhone:

1. Go to Settings → Cellular (labeled Mobile Service in some regions)
2. Tap Add eSIM
3. Tap Use QR Code
4. Scan the QR code from your provider (if you are reading it on the same phone, take a screenshot first, then scan it from your photo library — or use a second device to display the code)
5. When prompted, label the plan (e.g., “China Data”) — this helps distinguish it from your home SIM if you use multiple lines
6. Choose a default line for calls and messages — you can keep your home SIM here; set the China eSIM as your data line
7. Tap Done

What to do if the QR code does not scan: Try increasing your screen brightness on the device displaying the code. If you are scanning from a computer monitor, move closer or zoom in. If it still fails, most provider apps offer a “manual entry” option where you can type in the SM-DP+ address and activation code instead of scanning.

On Samsung Galaxy:

1. Go to Settings → Connections → SIM card manager
2. Tap Add eSIM
3. Tap Scan QR code from service provider
4. Scan the QR code from your provider
5. Follow the on-screen prompts to complete installation
6. Once installed, tap the eSIM and ensure Mobile data is toggled ON for this SIM

On Google Pixel:

1. Go to Settings → Network & internet → SIMs
2. Tap Add SIM → Download a SIM instead?
3. Tap Next → Scan QR code
4. Scan the QR code from your provider
5. Confirm the installation when prompted

What the installation looks like visually: After scanning, your phone processes the profile for 10-30 seconds. You will see a loading spinner or a “Setting up eSIM” message. When it finishes, the new eSIM appears in your SIM list. It may show “No Service” if you are outside China — this is normal and expected.

Step 4: Enable Data Roaming

This is the most common step that beginners miss. Your eSIM needs data roaming enabled to work in China.

iPhone: Settings → Cellular → tap your China eSIM → toggle Data Roaming ON

Samsung: Settings → Connections → SIM card manager → tap your China eSIM → toggle Data roaming ON

Google Pixel: Settings → Network & internet → SIMs → tap your China eSIM → toggle Roaming ON

Step 5: Configure APN Settings (If Needed)

Some providers require you to enter APN (Access Point Name) settings manually. Others configure this automatically. Check your provider’s instructions.

If you need to set APN manually:

iPhone: Settings → Cellular → Cellular Data Network → enter the APN provided by your eSIM provider

Samsung: Settings → Connections → Mobile networks → Access Point Names → tap + and enter the APN

Google Pixel:** Settings → Network & internet → SIMs → your China eSIM → Access Point Names → tap **+

If your provider uses automatic carrier switching, you can skip this step entirely. a China eSIM is one example that handles APN configuration automatically on most devices.

Step 6: Test Before You Depart

After installation, your eSIM should show a signal indicator. If you are still in your home country, the eSIM may show “No Service” because it only connects to Chinese networks. This is normal.

If your provider allows it, connect to a WiFi network and try loading a website with your eSIM as the active data line. Some providers offer a “test” mode. Others activate only when they detect a Chinese network.

To confirm the eSIM profile installed correctly:

• Go to Settings → Cellular (iPhone) or Settings → Connections → SIM card manager (Samsung)
• Verify the China eSIM appears in your list of SIMs
• The profile itself is installed correctly even if it shows “No Service” outside China

Step 7: Connect After Landing

When your plane lands in China:

1. Turn off airplane mode as soon as the plane reaches the gate
2. Wait 30-60 seconds for the phone to scan and connect to a Chinese network. You may see “Searching…” or “No Service” briefly — this is normal as the phone registers on the new network
3. If the eSIM does not connect automatically, go to Settings → Cellular → Network Selection (iPhone) or Settings → Connections → Mobile networks → Network Operators (Samsung). Disable Automatic, wait for the list of available networks to appear, then select China Mobile. Most eSIM providers partner with China Mobile for the widest 4G/5G coverage
4. Open Google Maps or Safari to confirm connectivity. Try loading google.com or maps.google.com — if the page loads, your eSIM is working and the firewall is being bypassed
5. Check WhatsApp by sending a quick message to confirm messaging apps work

What to do immediately if there is no signal:

• Toggle Airplane Mode ON, wait 10 seconds, toggle OFF
• Restart your phone — this forces a fresh network registration
• Verify that Data Roaming is enabled for the eSIM line specifically (not just your primary line)
• If you are still underground (metro, tunnel), wait until you are above ground

Important: When you first land, your phone might connect to a very weak signal because the network is still detecting your location. Within 2-3 minutes, it typically stabilizes on the strongest available tower.

If nothing works after 5 minutes, our China eSIM troubleshooting guide covers every possible problem and solution.

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What Mistakes Do Beginners Make with China eSIM? (And How to Avoid Them)

After reading through hundreds of Reddit threads and support tickets, these are the most common mistakes first-time China eSIM users make.

Mistake 1: Buying After Arrival

The biggest mistake. You land at Beijing Capital International Airport, pull out your phone, and try to buy and download an eSIM. But you need internet access to download the profile, and you do not have internet access because that is what you are trying to fix. Some airports offer free WiFi, but connecting often requires an SMS verification code — which you cannot receive on a data-only eSIM.

How to avoid: Buy and install your eSIM before you leave home. The profile downloads over your home WiFi. It activates automatically when it detects a Chinese network.

Mistake 2: Not Enabling Data Roaming

This is the single most common reason a China eSIM does not work after landing. Data roaming is disabled by default on most phones. Your eSIM needs it enabled to connect to a foreign network.

How to avoid: Before you depart, go into your eSIM settings and toggle Data Roaming ON. Write it on a sticky note if you have to.

Mistake 3: Using a Chinese iPhone

As covered in the compatibility section, iPhones purchased in mainland China, Hong Kong, or Macau do not support eSIM at the hardware level. This catches a lot of travelers by surprise, especially those who bought a Chinese iPhone because it was cheaper.

How to avoid: Check where your iPhone was purchased before you buy an eSIM. If you have a Chinese iPhone, your options are a physical travel SIM or a pocket WiFi device.

Mistake 4: Installing the Wrong eSIM Profile

Some providers offer multiple eSIM profiles in a single purchase — for example, one profile for mainland China and another for Hong Kong or Macau. Installing the wrong one means no connectivity when you need it.

How to avoid: Carefully read the instructions that come with your eSIM purchase. Make sure you scan the QR code labeled specifically for mainland China. If your itinerary includes Hong Kong or Macau, install those profiles separately when you cross the border. Label each eSIM clearly during installation so you know which is which.

Mistake 5: Forgetting APN Settings

Mistake 5: Forgetting APN Settings

Some eSIM providers require manual APN configuration. If your data does not work after installation, missing APN settings are often the cause.

How to avoid: Before you leave, check whether your provider requires APN changes. Save the APN information in your Notes app so you can access it offline if needed. Or choose a provider that handles APN automatically.

Mistake 6: Not Testing Before Departure

A significant number of eSIM issues are caught before travel — wrong profile, incompatible phone, carrier lock. But only if you test.

How to avoid: Install the eSIM at least 2-3 days before your trip. Check that the profile appears in your SIM list. If you get an error, you have time to contact support.

Mistake 7: Dual SIM Conflicts

When using dual SIM (your home SIM + China eSIM), some phones get confused about which line to use for data. Your data might be routing through your home SIM while you think it is on the eSIM, resulting in expensive roaming charges.

How to avoid: Explicitly set the China eSIM as your data line. On iPhone: Settings → Cellular → Cellular Data → select your China eSIM. On Android: Settings → Connections → SIM card manager → Mobile data → select your China eSIM.

Mistake 8: Assuming All eSIMs Bypass the Firewall

Not all China eSIMs work the same way. Some route traffic through international gateways (bypassing the firewall automatically). Others connect directly to Chinese networks and require you to use a separate VPN.

How to avoid: Before buying, check whether the eSIM includes built-in firewall bypass. Providers like Holafly, Saily, and a China eSIM route their traffic internationally, so Google and WhatsApp work out of the box. Cheaper eSIMs may connect directly to Chinese carriers, meaning you still need a VPN.

Mistake 9: Carrier-Locked Phone

Travelers from the US are most affected by this. A phone locked to Verizon, AT&T, or T-Mobile will reject any non-approved eSIM.

How to avoid: Check with your carrier before buying. If your phone is locked, request an unlock — US carriers are required to unlock phones upon request if they are paid off.

Mistake 10: Deleting the eSIM Before the Trip Ends

Some users accidentally delete their eSIM profile while cleaning up their SIM list. Usually you can reinstall, but some providers charge a fee for a new QR code.

How to avoid: Do not delete your eSIM profile until your trip is over. If you need to remove it, read the “Can you delete and reinstall” section below first.

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What Do Reddit Users Say About China eSIM? Community Tips

Reddit communities like r/ChinaTravel, r/eSIM, r/travelchina, and r/China have extensive discussions about China eSIM experiences. Here are the most consistent tips that come up across hundreds of threads.

Tip	Key Details
“Buy before you fly”	Users who installed before departure report smooth experiences; those who bought after arrival struggle with airport WiFi requiring SMS verification and slow connections. Multiple users shared stories of being stuck in arrival halls unable to call a Didi.
APN settings fix most issues	When eSIM does not work, checking APN settings is the most common fix, especially on Android. Dedicated threads list correct APN values for every major provider serving China.
Keep your physical SIM for SMS	Banking apps, WhatsApp, Didi, Alipay, and restaurant platforms all send SMS codes. A data-only eSIM cannot receive these. Dual-SIM (home SIM for SMS, eSIM for data) is the most recommended configuration.
Not all eSIMs bypass the firewall	Cheap eSIMs from lesser-known providers may leave Google, WhatsApp, and Instagram blocked. The fix is an international roaming eSIM, not a domestic Chinese carrier eSIM.
Automatic switching saves time	Multiple threads mention automatic carrier switching as a time-saver. First-time users often struggle with manual network selection after landing, and automatic switching removes that step entirely.
China Mobile has the widest coverage	China Mobile has the best 4G/5G coverage across Chinese cities and on high-speed trains. If manually selecting a network, choose China Mobile for the strongest signal.
“Unlimited” plans have fair-use caps	Most “unlimited” plans throttle to 128-256 kbps after roughly 1 GB/day at full speed. Fine for messaging and maps but not video streaming. Set-data plans (10 GB, 20 GB) are often more reliable.
Dual SIM configuration tips	Set eSIM as default data line, home SIM as default voice line. On iPhone, ensure iMessage and FaceTime use your home SIM number so SMS verification codes arrive correctly.
Pre-trip prep matters	Save the QR code (single-use for some providers), keep your home SIM for banking apps, and have a phone number for airport pickup drivers who call to confirm location.
Always have a backup	Bring a physical SIM as fallback or keep a screenshot of your provider’s support contact saved on your phone. Digital nomads often carry both an eSIM and a physical SIM for redundancy.

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Can I Test a China eSIM for Free? Trials and Money-Back Guarantees

For first-time eSIM users, the ability to test before committing is valuable. Here is what each major provider offers.

a China eSIM Free Trial

Roami offers a free China eSIM trial that lets you test the service before buying a full plan. This is particularly useful for first-time users who want to verify compatibility and connectivity before committing money. The trial gives you a small amount of free data to test on the China network. You can install it before your trip, confirm the eSIM works on your phone, and then upgrade to a paid plan when you are ready.

a China eSIM also offers a 30-day money-back guarantee on most plans. If the eSIM does not work for you, you can request a full refund within 30 days of purchase.

Holafly

Holafly offers a 7-day money-back guarantee on unused plans. If you purchase a plan but have not yet activated it, you can get a full refund. Partial refunds are not available once the plan has been activated.

Airalo

Airalo does not offer free trials. Their refund policy allows returns within 30 days of purchase only if the eSIM has not been installed or used. Once installed or connected, refunds are generally not available.

Nomad

Nomad offers refunds on uninstalled eSIMs within 30 days. If you have installed and used the eSIM, refunds are handled on a case-by-case basis.

Ubigi

Ubigi does not offer free trials. Refunds are available within 14 days of purchase if the eSIM has not been activated.

Saily

Saily offers a 14-day refund policy on unused plans.

Summary Table

Provider	Free Trial	Refund Window	Refund Condition
a China eSIM	Yes (free trial available)	30 days	Most plans, including used
Holafly	No	7 days	Unused only
Airalo	No	30 days	Uninstalled only
Nomad	No	30 days	Uninstalled only
Ubigi	No	14 days	Unactivated only
Saily	No	14 days	Unused only

If you want to test a China eSIM risk-free, a China eSIM’s free trial and 30-day money-back guarantee provide the most flexibility for beginners.

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Are There Promo Codes and Discounts for China eSIM in 2026?

Here are verified promo codes and discounts for China eSIM plans in 2026.

Roami Promo Code

• Code: WEB20 — Get a discount on your china esim plan
• Available for all China data plans
• Combine with the free trial to test before you commit
• Stackable with new user offers in some cases

Airalo Discounts

• New users: 10% off first purchase via referral links
• Referral program: Share your code, get $3 credit per referral
• Seasonal sales: Check the Airalo app for flash sales (typically Chinese New Year, summer, Singles’ Day)

Holafly Discounts

• New users: 5% off first purchase (varies by region)
• Email newsletter: 10% off on signup
• Occasional 15-20% flash sales on social media

Nomad Discounts

• Referral program: $3 credit per successful referral
• First purchase: 10% off with select referral codes
• Bundle discounts on multi-country plans

Ubigi Promos

• New users: 10% off first purchase with referral codes
• Loyalty discounts: 5% off on repeat purchases for some regions

Saily Discounts

• New users: Introductory pricing on first purchase
• Referral credits available

How to Find the Best Deal

1. Check the provider’s app for in-app-only offers
2. Search for current promo codes before checkout
3. Consider buying a slightly larger data package — the per-GB price drops significantly at higher tiers
4. Multi-country plans (China + Hong Kong + Japan, for example) often cost less than buying separate plans for each country

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Can You Delete and Reinstall a China eSIM?

Short answer: Yes, in most cases you can reinstall a China eSIM if you delete it.

The process depends on your provider and how they deliver eSIM profiles.

How Deleting an eSIM Works

When you delete an eSIM profile from your phone, you are removing the digital certificate that authenticates you to the network. The plan itself remains active on the provider’s system as long as it has not expired. Deleting the profile does not cancel your plan.

How to Reinstall

Method 1: Re-download from the provider’s app (easiest)

Most eSIM providers have a mobile app that stores your purchased plans. If you delete the profile:

1. Open the provider’s app
2. Go to “My eSIMs” or “Active Plans”
3. Find your China plan
4. Tap “Reinstall” or “Download Again”
5. Follow the installation prompts

This works with a China eSIM, Airalo, Holafly, Nomad, and most app-based providers.

Method 2: Use the original QR code

If you saved the original QR code (or if it is in your email), you can scan it again:

1. Open the QR code on another device or print it out
2. Go to Settings → Cellular → Add eSIM → Scan QR Code
3. Scan the same QR code you used the first time

Important: Some providers generate a single-use QR code. If you already scanned it, a second scan may not work. In that case, use Method 1 or Method 3.

Method 3: Contact support for a new QR code

If neither method works:

• Contact the provider’s customer service
• Explain that you deleted the eSIM profile and need a reissue
• Most providers will send a new QR code free of charge
• Some may charge a small administration fee (typically $1-3)

Which Providers Allow Easy Reinstallation?

Provider	Reinstall via App	Reuse Original QR	New QR Code Fee
a China eSIM	Yes	Yes	Free
Airalo	Yes	Yes	Free
Holafly	Yes	Yes	Free
Nomad	Yes	No (single-use QR)	Free on request
Ubigi	Yes	Yes	Free
Saily	Yes	Yes	Free

What If You Cannot Reinstall?

If you delete your eSIM and cannot reinstall it:

1. Check your email: The original purchase confirmation usually contains the QR code or installation instructions
2. Check the provider’s website: Most have a “My Orders” section where you can retrieve past purchases
3. Contact support: Provide your order number and they will help

If all else fails and you cannot recover the profile, you may need to purchase a new plan. This is rare, but it is worth knowing ahead of time.

Preventative Tips

• Save a screenshot of the QR code in your photo library before you delete anything
• Take a photo of the QR code with a second device
• Download the provider’s app before you travel — it stores your plan and makes reinstallation a one-tap process

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How Do I Contact China eSIM Customer Service? Provider Contacts

When something goes wrong with your China eSIM, fast customer support makes the difference between a minor inconvenience and a ruined day of sightseeing.

a China eSIM

a China eSIM offers 24/7 live human support — not chatbots. This is a meaningful difference for first-time eSIM users who may need hand-holding through installation.

• In-app live chat: Available 24/7, response typically within 1-2 minutes
• Email: [email protected] (response within 2-4 hours)
• Knowledge base: In-app help center with step-by-step guides
• Languages: English, Chinese

Best for: Beginners who want someone to walk them through setup in real time.

Airalo

• In-app chat: Available 24/7, but primarily a chatbot. Escalation to a human agent takes 10-30 minutes during peak hours.
• Email: [email protected] (response within 24 hours)
• Help center: Extensive FAQ and troubleshooting articles

Holafly

• WhatsApp: +34 611 21 15 09 (available 24/7)
• Email: [email protected] (response within 12-24 hours)
• Live chat: On website, available during business hours

Nomad

• In-app chat: Available 24/7, response within 5-15 minutes
• Email: [email protected] (response within 12-24 hours)
• Help center: Yes

Ubigi

• Email/ticket system: Via website (response within 24-48 hours)
• FAQ: Extensive self-help section
• No live chat: Ubigi’s support is primarily email-based

Saily

• Email: [email protected] (response within 24 hours)
• In-app chat: Available during business hours
• Help center: Yes

China Unicom / CMHK Direct

• WeChat: Customer service via WeChat Official Account
• In-store: Physical stores in major cities
• Phone: Hotline numbers vary by region
• Email: Limited English support

Tips for Getting Help Faster

1. Include your order number in every support message
2. Take screenshots of any error messages before contacting support
3. Be specific: “I scanned the QR code on my iPhone 16 Pro and got ‘Unable to complete activation’ error at step 3” is much more helpful than “my eSIM won’t work”
4. Check the provider’s FAQ first — most common issues have documented solutions
5. Reach out before your trip if possible. Support teams are less busy on weekday mornings

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FAQs for First-Time eSIM Users in China

Can I reinstall China eSIM if I delete it?

Yes, in most cases. If you delete your eSIM profile from your phone, the plan remains active on the provider’s system. You can reinstall by opening the provider’s app and tapping “Reinstall” or by scanning the original QR code again. Most providers offer free reinstallation. A few require you to contact support for a new QR code, but they typically do not charge for it.

What about if I factory reset my phone? A factory reset does not delete your eSIM profile in most cases. On iPhone, the eSIM profile is stored on the eUICC chip, which is not wiped by a standard factory reset. However, if you choose “Erase All Content and Settings” and specifically choose to remove eSIM profiles, they will be deleted. On Samsung, factory reset also preserves eSIM profiles by default, but some system-level resets may remove them. In either case, you can reinstall using the methods above.

The only scenario where you cannot reinstall is if the plan has already expired or if you have used up all the data. In those cases, you would need to purchase a new plan anyway.

For detailed steps, see the “Can You Delete and Reinstall a China eSIM?” section above.

Can I top up China eSIM plan?

It depends on the provider.

Providers that allow top-ups:

• a China eSIM: Yes, you can add more data to an existing active plan through the app. Top-ups are available in 1GB, 3GB, 5GB, and 10GB increments. The top-up data inherits the same validity period as your original plan.
• Airalo: Yes, you can top up data on most China plans through the app.
• Nomad: Yes, top-up data packages are available for active plans.
• Ubigi: Yes, top-ups available through the app or website.
• Saily: Yes, through the app.

Providers that do NOT allow top-ups:

• Holafly: No. Holafly China plans are fixed — you buy the plan for a set duration and data amount. When it runs out, you must purchase a new plan. This is one of their main limitations.

How top-ups work:

1. Open the provider’s app
2. Go to “My Plans” or “Active eSIMs”
3. Tap on your China eSIM
4. Select “Top Up” or “Add Data”
5. Choose the data amount and pay
6. The additional data activates immediately on your existing eSIM — no need to install a new profile

Practical tip: If you are unsure how much data you need, start with a smaller plan from a provider that offers top-ups. You can always add more data if you run low. This is cheaper than buying a large plan upfront that you might not fully use.

What is the cheapest eSIM for China trip?

The cheapest China eSIM depends on how much data you need.

Cheapest overall (any data): China Unicom direct at $2.80 for 1GB. However, purchasing directly from Chinese carriers requires Chinese ID verification in some cases and limited English support.

Cheapest for hassle-free purchase (1GB): Ubigi at $3.00 for 1GB. Instant delivery, English-language support, no ID verification.

Cheapest for 1-week trip (5GB): Ubigi at $10.00 for 5GB, or a China eSIM at $11.00 for 5GB.

Cheapest for 2-week trip (10GB): a China eSIM at $16.00 for 10GB, tied with CMHK direct.

Cheapest for 30-day trip (20GB+): a China eSIM at $26.00 for 20GB, or Nomad at $29.00 for 20GB.

Cheapest unlimited: a China eSIM at $26.00 for 7 days unlimited, or Holafly at $30.00 for 7 days unlimited.

For a comprehensive price comparison across all providers and data tiers, see the China eSIM price and purchase guide.

Does China eSIM work with VPN?

If you buy an international roaming eSIM that routes traffic through an external gateway (Hong Kong, Singapore), you likely do not need a separate VPN — Google, WhatsApp, and Instagram work automatically.

If you buy a direct China carrier eSIM, you will need a separate VPN to access blocked services. Some eSIM providers (Holafly, Saily) include built-in VPN functionality. Others require you to configure your own.

For more detail, see our guide on China eSIM and VPN firewall bypass.

Can I make voice calls with a China eSIM?

Most China travel eSIMs are data-only. You cannot make or receive voice calls through the eSIM number. Your regular home SIM still handles calls and texts. If you need a Chinese phone number for calling (for restaurant reservations, Didi pickup confirmations, etc.), you need a separate service like a Chinese SIM card or a VoIP app.

Will my home SIM still work?

Yes, if your phone supports dual SIM. You can keep your home SIM active for calls and SMS while using the China eSIM for data. On iPhone (XS and newer) and most modern Android phones, both SIMs work simultaneously.

To set this up:

1. Install the China eSIM
2. Go to your cellular settings
3. Set the China eSIM as the data line
4. Keep your home SIM as the voice line
5. Your home SIM continues to receive SMS for authentication codes

What if my eSIM does not work after arrival?

Try these steps in order:

1. Enable data roaming — This fixes most cases
2. Manually select a network — Settings → Cellular → Network Selection → disable Automatic → select China Mobile
3. Check APN settings — Verify the APN matches your provider’s instructions
4. Restart your phone — A fresh network scan often resolves connection issues
5. Toggle airplane mode — Turn it on, wait 10 seconds, turn it off
6. Contact support — If nothing works, reach out to your provider’s customer service

Our China eSIM troubleshooting guide covers every possible issue in detail.

Can I get a refund if my China eSIM does not work?

Refund policies vary by provider:

• a China eSIM: 30-day money-back guarantee on most plans
• Holafly: 7-day refund on unused plans
• Airalo: 30-day refund on uninstalled plans
• Nomad: 30-day refund on uninstalled plans
• Ubigi: 14-day refund on unactivated plans
• Saily: 14-day refund on unused plans

To request a refund, contact the provider’s customer service with your order number and the reason for the refund. If you have technical issues, most providers will ask you to try troubleshooting steps first.

Should I get a China eSIM or a physical SIM?

For most travelers, an eSIM is the better choice:

• Install before you leave — No hunting for a SIM kiosk at the airport
• Keep your home SIM — No removing your current SIM card
• Firewall bypass — Most travel eSIMs route data internationally
• No risk of losing tiny SIM cards — One less thing to keep track of

A physical SIM makes sense if:

• Your phone does not support eSIM (especially Chinese-market iPhones)
• You need a Chinese phone number for voice calls
• You want the absolute lowest price (direct carrier SIMs are slightly cheaper)
• You are on a carrier-locked phone

Quick comparison:

Factor	eSIM	Physical SIM
Setup	Before departure via app	At airport kiosk or store
Firewall bypass	Built into most travel eSIMs	Requires separate VPN
Phone number	None (data-only)	Local Chinese number
Voice calls	Not supported	Yes
Reusability	Next trip, buy new plan	Next trip, buy new SIM
Cost per GB	$2.80 - $4.50	$2.00 - $3.50
English support	Yes (most providers)	Limited
Installation time	2-5 minutes	10-30 minutes at airport

Can I use my China eSIM as a hotspot?

It depends on the provider. Some China eSIMs support tethering (sharing your data connection with a laptop or tablet), while others block it.

Providers that allow hotspot/tethering: a China eSIM, Airalo (most plans), Nomad, Ubigi, Saily. a China eSIM explicitly supports hotspot on all its China plans, which is useful if you need to connect a laptop for work.

Providers that block hotspot: Holafly blocks tethering on its China unlimited plans. This is stated in their terms of service. If you need to share your connection, choose a provider that allows it.

How to set up hotspot: On iPhone: Settings → Cellular → Personal Hotspot → Allow Others to Join. On Android: Settings → Connections → Mobile Hotspot and Tethering. Make sure hotspot is enabled for the eSIM line specifically, not your home SIM.

How much data do I need for a China trip?

Here is a rough guide based on common usage patterns:

Usage Pattern	Daily Data	Weekly Total
Light (Google Maps, WeChat, occasional browsing)	300-500 MB	3-5 GB
Moderate (add social media scrolling, YouTube short clips)	500 MB - 1 GB	5-10 GB
Heavy (video calls, streaming, hotspot sharing)	1-2 GB+	10-20 GB+

If in doubt, buy 5GB for a week or 10GB for two weeks. Most providers offer top-ups if you run low.

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Your Next Steps

You now know everything you need to go from “I have never used an eSIM” to “I have a working China eSIM ready for my trip.” Here is your action plan:

1. Check phone compatibility using the methods in the compatibility section
2. Choose a provider — a China eSIM offers automatic carrier switching and live support for beginners; Airalo and Holafly are also solid options
3. Buy your plan before you leave, selecting the right data amount for your trip length
4. Install the eSIM using the step-by-step instructions above
5. Enable data roaming — seriously, do not forget this
6. Test before departure to catch any issues at home
7. Save your QR code as a screenshot and in the provider’s app
8. Note your provider’s support contact in case you need help after landing

The China eSIM complete guide serves as the pillar page for everything else, linking together all the China eSIM content on this site.

Safe travels, and enjoy being connected in China.

See Apple Support for eSIM-compatible devices. The GSMA defines global eSIM standards.