Japan eSIM Compatibility Guide 2026: Complete List of Supported Phones
📑 Table of Contents
Whether your phone supports eSIM in Japan depends less on the model than on where you bought it, because regional firmware and carrier variants change the answer for identical handsets. A mainland China iPhone and many Taiwanese, Hong Kong and Korean Samsung variants have no eSIM capability at all, while an international iPhone or a non-carrier Google Pixel 6 or newer almost always works, provided the phone is carrier-unlocked. The good news is that verification takes under 60 seconds: dial *#06# and look for a 32-digit EID, and if it is there, your device can hold an eSIM profile. This guide covers what works, what does not, and the alternatives if your phone fails the check.
Introduction: Does Your Phone Support eSIM in Japan?
Key takeaways: Most phones from 2018 onward support eSIM, but where you bought your phone matters more than the model — mainland China iPhones and many Taiwanese, Hong Kong, and Korean Samsung variants have no eSIM at all. The safest choices are an international iPhone or a Google Pixel 6 or newer that isn’t a Japanese carrier variant, and your phone must be carrier-unlocked. Verify compatibility in under 60 seconds by dialing *#06# and looking for a 32-digit EID number.
You’ve booked your flights, planned your itinerary, and researched the best sushi spots in Tokyo. But there’s one critical question that can make or break your Japan trip: does your phone actually support eSIM?
Here’s the honest truth: even if your phone model supports eSIM in theory, compatibility varies by country of purchase, carrier lock status, and regional firmware. Hundreds of devices now support eSIM worldwide — the GSMA maintains the standard — but not every device will work in Japan.
The good news is that checking compatibility takes less than 60 seconds. This guide walks you through exactly what works, what doesn’t, and how to verify your specific device.
If your phone doesn’t support eSIM, don’t panic — we’ll also cover your alternatives at the end. For a complete overview of choosing a Japan eSIM, see our Japan eSIM start here.
Quick Reference: Does Your Phone Support eSIM?
The short answer, brand by brand
| Brand | Supported Models | Regional Restrictions |
|---|---|---|
| Apple iPhone | XR, XS, 11, 12, 13, 14, 15, 16, 17, SE (2nd & 3rd gen) | ❌ China mainland models: NO eSIM |
| Samsung Galaxy | S20–S26, Z Fold, Z Flip, A54/A55, A35/A36 | ⚠️ US S20 FE / S21 FE models: NO |
| Google Pixel | Pixel 4, 5, 6, 7, 8, 9, 10 | ⚠️ Japan carrier variants: eSIM disabled |
| Xiaomi | 12T Pro, 13 series, 14 Pro, 15 series | ❌ China ROM models: NO eSIM |
| OnePlus | OnePlus 11, 12, 13 (global versions) | ⚠️ China variants may not support |
| OPPO | Find X5 Pro, Find N3, Find X8, Reno 14 | ❌ China market models: NO eSIM |
| Vivo | Vivo X100 Pro, Vivo X200 series | ❌ China market models: NO eSIM |
| Motorola | Razr, Edge (unlocked versions) | ⚠️ Carrier-locked versions may not work |
| Asus | ROG Phone 9, Zenfone 12 Ultra | ✅ Global versions support eSIM |
Part 1: eSIM Compatibility — The Big Picture
The three factors that decide everything
Before we dive into specific brands, it’s important to understand the three factors that determine whether your phone will work with a Japan eSIM.
Factor 1: Hardware Support
Your phone must have an eSIM chip built in. Most flagship and many mid-range phones from 2018 onward have this hardware. However, some budget models and older devices don’t.
Factor 2: Country of Purchase
This is the most common trap for travelers. Even within the same model line, certain regional variants — particularly Chinese-market and some Hong Kong/Macau models — do not support eSIM at all.
For example:
- China mainland iPhones have eSIM physically disabled across all models.
- Samsung phones sold in Taiwan, Hong Kong, and some Asian markets lack the eSIM chip entirely.
- Chinese-brand phones (Xiaomi, OPPO, vivo) sold domestically typically lack eSIM due to local regulatory requirements.
The rule of thumb: If you bought your phone in mainland China, assume it does NOT support eSIM unless you’ve confirmed otherwise.
Factor 3: Carrier Lock Status
Even if your phone has eSIM hardware, it won’t work with a Japan eSIM if it’s carrier-locked — tied to a specific mobile carrier. You can use a Japan eSIM on a carrier-unlocked phone only.
To check if your phone is unlocked:
- iPhone: Settings → General → About → look for “Carrier Lock”
- Samsung: Settings → Connections → SIM Card Manager
- Google Pixel: Settings → Network & Internet → SIMs
If it says “SIM locked” or “Carrier locked,” contact your carrier to request an unlock before you travel.
The Universal Check: The *#06# Method
Regardless of brand or model, there’s one foolproof way to check eSIM compatibility:
- Open your phone’s dialer
- Type
*#06#and press call - Look for an EID number (32 digits) alongside your IMEI numbers
EID stands for Embedded Identity Document — a unique identifier for your phone’s eSIM hardware.
If you see an EID → your phone has eSIM hardware ✅ If you only see IMEI numbers → no eSIM hardware ❌
This method works on all phones — iPhone, Samsung, Google Pixel, Xiaomi, OnePlus, and every other brand.
Part 2: Band Support: The Compatibility Check Most Travellers Skip
Every guide tells you to look for an EID. Almost none tells you to check which radio bands your phone can actually hear, and that is the difference between a plan that works and a plan that works everywhere.
Japan’s low bands are not the ones your phone has
Japan carries its rural and in-building coverage on 800 MHz blocks that are specific to the country: Docomo’s Band 19 and KDDI’s Band 18, which appears in specifications as Band 26. SoftBank uses Band 8 at 900 MHz, a globally harmonised block and therefore the one most likely to be present in a handset bought anywhere else. A phone built for North America or Europe may support none of Docomo’s low band at all, leaving it on the higher 2.1 GHz and 1.8 GHz layers — which reach less far and enter buildings less well. Our network and band breakdown explains what each carrier runs; this section is about your side of it.
How to look up your own model in two minutes
Read the model number from Settings → General → About on iPhone, or Settings → About phone on Android. Search that exact model number together with the word “bands”, and read the manufacturer’s specification page rather than a retailer listing, which often omits the detail. Note what you find for LTE bands 1, 3, 8, 19 and 28, and for 5G bands n77 and n78.
| What your specification shows | What it means for your Japan eSIM |
|---|---|
| Band 8 and Band 28 present | SoftBank-routed plans should perform well, including indoors |
| Band 19 present as well | Docomo becomes a safe choice, including rural and mountain travel |
| Neither Band 19 nor Band 18 | Prefer a SoftBank or KDDI plan over Docomo despite the coverage maps |
| n77 present | You will see 5G on SoftBank, KDDI and Rakuten deployments |
| n79 missing | Docomo’s 5G may be limited to its n78 coverage |
What the 3G switch-off changed for voice
Japan has no 3G network left. au closed its 3G service in 2022, SoftBank in 2024 and Docomo in 2026, so everything now runs over 4G or 5G and voice calls use VoLTE. A 3G-only handset gets nothing at all — no data, no calls, no SMS. A handset with the right data bands but no Japanese VoLTE support can end up with working data and no ability to place a call, which matters most in an emergency. VoLTE on Japanese networks is standard from iPhone 8 onward and on recent international Android flagships, but it is worth confirming on older devices, grey-market imports and handsets bought for a single trip.
Part 3: Two eSIMs at Once: Running a Japan eSIM Beside Your Home Line
Whether your phone can use a Japan eSIM while keeping your home number alive is a hardware question, and the answer changed with the iPhone 13.
What each generation actually supports
| Device | Simultaneous lines | What it means in practice |
|---|---|---|
| iPhone 13 and later | Two active eSIMs, or one eSIM plus one physical SIM | The physical slot is optional; both lines can be eSIM profiles |
| iPhone XS, XR, 11, 12 and SE (2nd gen) | One active eSIM plus one physical SIM | Works, but the second line needs the physical slot |
| eSIM-only models (US iPhone 14 onward; Japan’s iPhone 17 series) | Two active eSIMs | No tray exists, so both lines must be profiles |
| Recent Samsung Galaxy and Pixel flagships | Usually one physical SIM plus one eSIM, region-dependent | Verify your specific variant, since regional models differ |
| Older mid-range Android | Often no eSIM at all | Physical SIM only |
Why the two-line setup is the one most travellers want
The configuration that solves verification codes is the Japan eSIM carrying data while the home line stays active purely to receive SMS. That needs two lines running at once. On an iPhone 13 or newer — including the tray-less models — both can be eSIM profiles, because these handsets store eight or more profiles and keep two active simultaneously. On an older phone you need the physical slot free for your home SIM, which is an argument for buying the Japan plan as an eSIM rather than as a card.
The setting that catches everybody out
Leave data roaming off on your home line. That single setting is what prevents the phone from treating Japan as a roaming market on your home tariff and billing you for background data. The Japan line is the opposite case: its roaming setting needs to be on, because a travel eSIM connects as a roaming profile even in the country it was bought for.
Part 4: Apple iPhone eSIM Compatibility — The Full List
Apple has the broadest eSIM support of any manufacturer, with every iPhone since the XR (2018) supporting eSIM — Apple’s official eSIM support page lists every eligible model. However, regional restrictions are significant.
iPhone Models That Support eSIM (All Regions)
| Model | eSIM Support | Notes |
|---|---|---|
| iPhone 17 Air | ✅ Yes | eSIM-only worldwide — Apple’s first globally eSIM-only phone |
| iPhone 17 / Pro / Pro Max / 17e | ✅ Yes | eSIM-only in US, Canada, Japan + 9 more countries |
| iPhone 16 / Plus / Pro / Pro Max | ✅ Yes | eSIM-only in US |
| iPhone 15 / Plus / Pro / Pro Max | ✅ Yes | eSIM-only in US |
| iPhone 14 / Plus / Pro / Pro Max | ✅ Yes | eSIM-only in US |
| iPhone 13 / Mini / Pro / Pro Max | ✅ Yes | Dual: nano-SIM + eSIM |
| iPhone 12 / Mini / Pro / Pro Max | ✅ Yes | Dual: nano-SIM + eSIM |
| iPhone 11 / Pro / Pro Max | ✅ Yes | Dual: nano-SIM + eSIM |
| iPhone XR / XS / XS Max | ✅ Yes | Dual: nano-SIM + eSIM |
| iPhone SE (2nd gen, 3rd gen) | ✅ Yes | Dual: nano-SIM + eSIM |
⚠️ Critical: China Market iPhones
Most iPhone models sold in mainland China do NOT support eSIM.
This applies to all China-market iPhone models — Apple physically removes the eSIM hardware from devices sold in China due to local regulatory requirements.
Hong Kong and Macau exceptions: Only certain models support eSIM:
- iPhone 13 mini
- iPhone 12 mini
- iPhone SE (2020)
- iPhone XS
- iPhone 16e
- iPhone 17 / 17 Pro / 17 Pro Max
- iPhone Air
eSIM-Only iPhones in Japan
In 2026, iPhone 17, 17 Pro, 17 Pro Max, and 17e are eSIM-only in Japan — meaning there’s no physical SIM tray at all. The iPhone 17 Air is eSIM-only worldwide.
If you’re buying a new iPhone in Japan, you’ll need to use eSIM — physical SIM cards won’t work with these models.
iPad eSIM Compatibility
The following iPad models also support eSIM:
- iPad Pro 11" & 13" (M4, M5) — eSIM-only
- iPad Air 11" & 13" (M3, M4) — eSIM-only
- iPad Mini (7th gen) — eSIM-only
- iPad (11th gen) — eSIM-only
Part 5: Samsung Galaxy eSIM Compatibility — Region-Specific Rules
Samsung has the most complex eSIM compatibility landscape of any brand. Support varies dramatically by region, model, and carrier.
Samsung Models That Support eSIM
| Series | Models | Notes |
|---|---|---|
| Galaxy S Series | S26 / S26+ / S26 Ultra | ✅ Yes |
| S25 / S25+ / S25 Ultra / S25 Edge / S25 FE | ✅ Yes | |
| S24 / S24+ / S24 Ultra / S24 FE | ✅ Yes | |
| S23 / S23+ / S23 Ultra / S23 FE | ✅ Yes | |
| S22 / S22+ / S22 Ultra | ✅ Yes | |
| S21 / S21+ / S21 Ultra | ✅ Yes | |
| S20 / S20+ / S20 Ultra | ✅ Yes | |
| Galaxy Z Fold | Z Fold7 / Z Fold6 / Z Fold5 / Z Fold4 / Z Fold3 | ✅ Yes |
| Galaxy Z Flip | Z Flip7 / Z Flip7 FE / Z Flip6 / Z Flip5 / Z Flip4 / Z Flip3 | ✅ Yes |
| Galaxy A Series | A56, A55, A54, A36, A35 | ✅ Yes |
| Galaxy Note | Note 20 / Note 20 Ultra | ✅ Yes |
⚠️ Critical Regional Exceptions
| Region / Model | Status | Notes |
|---|---|---|
| US S20 FE / S21 FE models | ❌ NOT compatible | eSIM disabled on US variants |
| US S20 / S21 models | ❌ NOT compatible | eSIM disabled on US variants |
| US Galaxy Z Flip 5G | ❌ NOT compatible | eSIM disabled |
| US / Hong Kong Note 20 Ultra | ❌ NOT compatible | eSIM disabled |
| US / Hong Kong Galaxy Z Fold 2 | ❌ NOT compatible | eSIM disabled |
| Taiwan models | ❌ Generally no eSIM | Most Taiwan variants lack eSIM chip |
| Hong Kong models | ❌ Generally no eSIM | Many HK variants lack eSIM chip |
| Korean N models | ❌ Generally no eSIM | Korean variants often lack eSIM |
Key takeaway: To use a Samsung Galaxy with a Japan eSIM, you need an international version (US/European/Japanese/Singapore/Indian variants). Taiwanese, Hong Kong, and Korean versions typically do NOT have eSIM hardware.
For eSIM Simple Setup, Samsung supports Japanese carriers including KDDI, NTT Docomo, and SoftBank.
Part 6: Google Pixel eSIM Compatibility — Excellent Support with One Big Catch
Google Pixel phones have generally strong eSIM support, but there’s one major exception: Japanese carrier variants.
Pixel Models That Support eSIM
| Model | eSIM Support | Notes |
|---|---|---|
| Pixel 10 / 10 Pro / 10 Pro XL / 10 Pro Fold / 10a | ✅ Yes | eSIM-only in US |
| Pixel 9 / 9 Pro / 9 Pro XL / 9 Pro Fold / 9a | ✅ Yes | Full support, no regional limits |
| Pixel 8 / 8 Pro / 8a | ✅ Yes | Full support, no regional limits |
| Pixel 7 / 7 Pro / 7a | ✅ Yes | Full support, no regional limits |
| Pixel 6 / 6 Pro / 6a | ✅ Yes | Full support, no regional limits |
| Pixel 5 / 5a 5G | ✅ Yes | Japanese carrier variants may lock eSIM |
| Pixel 4 / 4 XL / 4a / 4a 5G | ✅ Yes | Japanese carrier variants may lock eSIM |
| Pixel 3 / 3 XL / 3a / 3a XL | ⚠️ Limited | Restrictions: Australia, Japan, Taiwan |
| Pixel 2 / 2 XL | ❌ No | No eSIM hardware |
⚠️ Critical: Japanese Carrier Variants
Most Japanese carrier variants have eSIM disabled at the firmware level.
| Carrier | Status |
|---|---|
| SoftBank | ❌ Disables eSIM on all Android devices, including Pixels |
| au (KDDI) | ❌ Disables eSIM on all Android devices, including Pixels |
| NTT Docomo | ❌ Android devices (including Pixels) typically have eSIM disabled |
Critical distinction: This is NOT a SIM lock. Even after unlocking the SIM for international use, eSIM remains inaccessible on these devices.
Other Pixel Regional Restrictions
| Region | Restriction |
|---|---|
| Pixel 3 from Australia, Taiwan, Japan | ❌ Do NOT support eSIM |
| Pixel 3 from US/Canadian carriers (non-Sprint/Google Fi) | ❌ May not support eSIM |
| Pixel 3a from Southeast Asia | ❌ Do NOT support eSIM |
| Pixel 3a with Verizon service | ❌ Do NOT support eSIM |
The safest choice: If you’re buying a used Pixel specifically for eSIM travel, choose Pixel 6 or newer. If you already own a Pixel 3/4/5 (non-Japanese), it will likely work.
Part 7: Other Android eSIM Compatibility — Xiaomi, OnePlus, OPPO, Vivo
Xiaomi
Compatible models (global versions only):
- Xiaomi 12T Pro
- Xiaomi 13 series
- Xiaomi 14 Pro
- Xiaomi 15 series
Critical: Xiaomi phones with Chinese ROM (mainland China versions) do NOT support eSIM. The eSIM feature is disabled on domestic Chinese models due to regulatory restrictions. Only global versions work.
OnePlus
Compatible models (global versions):
- OnePlus 13
- OnePlus 12
- OnePlus 11
Warning: OnePlus models purchased in China may have eSIM disabled. Global versions only.
OPPO
Compatible models (global versions):
- Find X5 Pro
- Find N3 series
- Find X8 series
- Reno 14 series
Warning: OPPO phones purchased in China do NOT support eSIM.
Vivo
Compatible models (global versions):
- Vivo X100 Pro
- Vivo V90 Pro
- Vivo X200 series
Warning: Vivo phones purchased in China do NOT support eSIM.
Motorola
Compatible models (unlocked versions):
- Motorola Razr (Razr 50 / 60)
- Motorola Edge series
Warning: Carrier-locked versions may not support eSIM. Buy unlocked.
Asus
Compatible models (global versions):
- ROG Phone 9 series
- Zenfone 12 Ultra
Part 8: How to Check Your Phone’s eSIM Compatibility (Step-by-Step)
Method 1: The Universal *#06# Test (Fastest)
- Open your phone’s dialer
- Type
*#06#and press call - Look for an EID number (32 digits)
EID present = compatible ✅ | No EID = not compatible ❌
This works on every phone — iPhone, Samsung, Google Pixel, Xiaomi, and all others.
Method 2: Check Phone Settings
| Brand | Path to Check |
|---|---|
| iPhone | Settings → Cellular → look for “Add Cellular Plan” |
| Samsung | Settings → Connections → SIM Card Manager → look for “Add eSIM” |
| Google Pixel | Settings → Network & Internet → SIMs → look for “+ Add SIM” |
| Other Android | Same *#06# method works best |
If “Add Cellular Plan” is missing on an iPhone even though an EID exists, Apple’s eSIM setup and troubleshooting guide covers the most common causes — carrier lock, region, and iOS version.
Method 3: Check Model Number
Look at your phone’s box or Settings → About Phone. The model suffix can indicate eSIM support:
| Suffix | Region | eSIM Support |
|---|---|---|
| U / U1 | US | ✅ Usually yes (but check specific model) |
| EUX | Europe | ✅ Usually yes |
| N | Korea | ❌ Often no eSIM |
| CN | China | ❌ No eSIM |
| TW | Taiwan | ❌ Often no eSIM |
| HK | Hong Kong | ❌ Often no eSIM (except specific iPhones) |
Once your phone passes these checks, installing the profile itself takes about five minutes — see our install your Japan eSIM for the step-by-step walkthrough.
Part 9: Moving an eSIM to a New Phone
Upgrade your handset before or during a trip and the Japan eSIM does not come along automatically.
The transfer route, and its limits
Apple supports moving an eSIM between iPhones through the built-in eSIM Quick Transfer, which migrates an existing line to a new handset without involving the provider — but the mechanism requires carrier support, and travel eSIM providers differ in whether they offer it. Where it is not supported, the provider has to issue the profile again, usually through a support request rather than self-service.
The trap that costs you a plan
A travel eSIM’s QR code is normally single-use, and deleting a profile is not like uninstalling an app. If you remove the eSIM while troubleshooting and the code has already been consumed, you may need the provider to reissue it — which is why the standard advice during a connection problem is to restart the phone and check the settings before touching the profile.
Doing it before you fly, not at the gate
If you are changing phones anyway, make the move at least a week before departure. Install the Japan eSIM on the new handset, confirm the line appears in your cellular settings, and leave it switched off until you land.
Part 10: Japan-Bought Phones: What Changes
eSIM-only handsets are now the norm in Japan
Apple’s iPhone 17, 17 Pro and 17 Pro Max sold in Japan have no physical SIM tray at all, and the iPhone Air has none in any market. Buy a new iPhone in Japan and an eSIM is not a preference, it is the only route. That is convenient for travel, since the profile installs before you fly, and awkward if you were counting on picking up a physical tourist card at the airport.
Carrier-branded Android handsets are the opposite problem
Japanese carrier variants of Android phones, particularly Pixel and Galaxy models sold on a Docomo, au or SoftBank contract, commonly have eSIM disabled at the firmware level. This is not a SIM lock, and unlocking the handset does not restore eSIM. If you are buying a used phone in Japan specifically for travel eSIMs, buy a factory-unlocked international model instead of a domestic carrier SKU.
Three checks when buying used anywhere
Dial *#06# and look for an EID number, confirm the handset is carrier-unlocked, and make sure the model number matches an international variant. A phone that fails the first check cannot use a travel plan at all, however inexpensive it was, and the physical SIM route is what remains.
Part 11: What If Your Phone Doesn’t Support eSIM?
If your phone fails the *#06# test or is carrier-locked, don’t worry — you still have options for staying connected in Japan. For a detailed comparison of all options, see our side-by-side breakdown. If the physical route is the one you need, our Japan’s physical SIM route covers providers, prices and activation.
Option 1: Physical SIM Card (Recommended)
Buy a physical SIM card at the airport or an electronics store in Japan:
- Where to buy: Narita, Haneda, Kansai airports; BIC Camera, Yodobashi
- Cost: Similar to eSIM plans ($10-30 for 7-14 days)
- Pros: Works on any unlocked phone
- Cons: Requires physical card, must find a store
Option 2: Pocket WiFi
Rent a portable WiFi hotspot:
- Where to rent: Japan Wireless, Sakura Mobile, airport counters
- Cost: $5-15/day
- Pros: Share with multiple devices, works on any phone
- Cons: Extra device to carry and charge
Option 3: International Roaming
Use your home carrier’s international roaming plan:
- Pros: No setup required, keep your number
- Cons: Expensive ($10-15/day), limited data
Option 4: Upgrade Your Phone
If you travel frequently, consider upgrading to a newer phone with eSIM support. Many 2020+ phones are now affordable on the used market.
Japan eSIM Compatibility FAQ: Locked and Unlocked Phones
Can I use a Japan eSIM with an iPhone bought in China?
No. Most iPhone models sold in mainland China do NOT support eSIM at all. Apple physically removes the eSIM hardware from China-market devices.
Can I use a Japan eSIM with a Samsung phone from Hong Kong?
Probably not. Hong Kong variants of Samsung phones typically lack eSIM hardware. Check with *#06# — if you don’t see an EID, it won’t work.
Can I use a Japan eSIM with a Google Pixel bought in Japan?
Only if it’s a factory-unlocked international version. Japanese carrier variants (SoftBank, au/KDDI, NTT Docomo) have eSIM disabled at the firmware level. This is a permanent restriction — even after SIM unlock, eSIM remains inaccessible.
What’s the safest phone for Japan eSIM?
iPhone (international version, not China-market) or Google Pixel 6 or newer (non-Japanese carrier version) have the most reliable eSIM support.
Do I need a carrier-unlocked phone for Japan eSIM?
Yes. Your phone must be carrier-unlocked to use a Japan eSIM. Check Settings → General → About → Carrier Lock. “No SIM restrictions” means unlocked.
Can I use a Japan eSIM with a Japanese carrier-locked phone?
No. Japanese carrier-locked phones (SoftBank, au, Docomo) typically have eSIM disabled at the firmware level — even if the phone model supports eSIM hardware.
Does my phone need 5G for a Japan eSIM?
No. Japan eSIM works on 4G/LTE networks as well. 5G is an added benefit — Japan’s 5G networks rank among the world’s fastest in Ookla’s Speedtest Global Index, so 5G-capable devices see the biggest gains in cities.
Can I use a Japan eSIM with an iPad?
Yes! The following iPad models support eSIM: iPad Pro 11" & 13" (M4, M5), iPad Air 11" & 13" (M3, M4), iPad Mini (7th gen), and iPad (11th gen).
What if I’m not sure about my phone?
The *#06# test is the most reliable method. If an EID number appears, your phone supports eSIM. If not, it doesn’t. Still unsure? Install a try an eSIM for free — if it connects, your phone is ready for a paid Japan plan.
Can I use a Japan eSIM with a phone that has a physical SIM card slot?
Yes. Most eSIM-compatible phones support Dual SIM — one physical SIM and one eSIM active simultaneously. You can keep your home SIM for calls/SMS while using the eSIM for data.
Do I need to check my phone’s bands for Japan?
It is worth two minutes. Japan’s rural low bands, Docomo’s Band 19 and KDDI’s Band 18, are specific to the country, while SoftBank’s Band 8 is globally common. A phone without the Japanese low bands still works, but it drops signal first in tunnels, basements and rural areas.
How many eSIMs can my phone run at the same time?
From the iPhone 13 onward, two active eSIMs — or one eSIM plus a physical SIM. Earlier eSIM iPhones run one active eSIM alongside a physical SIM. Recent Galaxy and Pixel flagships generally allow one physical SIM and one eSIM together, though regional variants differ, so check your model.
Why does my phone show data but cannot make calls in Japan?
Because Japan closed its 3G networks — au in 2022, SoftBank in 2024 and Docomo in 2026 — so calls now run as VoLTE over 4G or 5G. A handset without Japanese VoLTE support can register for data and still be unable to place an ordinary call. Emergency numbers 110 and 119 should always be checked before you rely on them.
Can I transfer my Japan eSIM to a new phone?
Sometimes. iPhone-to-iPhone transfers use eSIM Quick Transfer where the provider supports it; otherwise the provider must reissue the profile. A travel eSIM’s QR code is normally single-use, so do not delete a working profile while troubleshooting — ask support instead.
Two More Japan eSIM Checks Worth Doing Before You Buy
Compatibility is one of three pre-purchase checks, and the other two are quick:
- Network fit. For travel outside the big cities, which carrier your eSIM uses matters more than the brand - the carrier-by-carrier coverage explains the differences.
- Whether you need a number. If a school, landlord or service insists on a Japanese number, a data-only eSIM will not provide one; the who can get a Japanese number guide covers who can get one and how.
If your phone passes the eSIM check and you only need data, you can go straight on to choosing a plan.
Final Thoughts: Your Japan eSIM Compatibility Checklist
Before buying a Japan eSIM:
- Dial
*#06#— look for an EID number - Check your phone is carrier-unlocked
- Check your country of purchase (China models usually don’t work)
- If you have a Samsung, confirm it’s not a Taiwan/Hong Kong/Korean variant
- If you have a Google Pixel, confirm it’s not a Japanese carrier variant
- If you have a Xiaomi/OPPO/Vivo, confirm it’s a global version
The bottom line: Most phones from 2018 onward support eSIM — but regional variations matter more than the model itself. A 5-minute check with *#06# saves you from disappointment at the airport.
For more information on choosing a Japan eSIM, see our ranked best-of shortlist.
Compiled by the Roami Team from public manufacturer documentation and provider specifications. Last updated September 2026.
Sources: Apple Support documentation, Samsung and Google official support pages, the GSMA eSIM specification, and device compatibility testing. Regional rules vary — always confirm with your device manufacturer before travel.