Vietnam eSIM: Fast 5G Data for Every City & Destination
Instant activation | Top-rated 5G coverage | 24/7 support - the best prepaid eSIM for Vietnam
Same network. Lower price. Compare us.
Roami eSIM: Save up to 30% vs. leading competitors.
Compare Vietnam eSIM Plans: Prepaid, Unlimited and Fixed-Data
Selected Plan
Validity: Starts from your first data use, not from purchase.
Unlimited data comes with a Fair Use Policy (FUP): enjoy maximum speed up to your daily quota, then speed is reduced — but your connection never drops and you're never charged extra.
Fair use: Light plans 1 GB/day, Super plans 2 GB/day at maximum speed; after that, speed drops to 512 Kbps until it resets at midnight.
Special Discount on Vietnam eSIM Plans
Use promo code web20 at checkout to get 20% OFF your order! Get the cheapest eSIM plan Vietnam for your trip.
Vietnam eSIM Coverage: How the Local Networks Compare
What Your eSIM Covers
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Coverage Enjoy comprehensive network coverage across Vietnam, including Ho Chi Minh City (4G), Hanoi (4G), Da Nang (4G), Hai Phong (4G). Your eSIM connects to the robust networks of Viettel, Mobifone, Vinaphone, ensuring stable signals through city centers, popular visitor spots and major transport corridors.
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Delivery Time Immediate delivery after purchase.
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Hotspot No hotspot limits or constraints.
Viettel, Mobifone & Vinaphone: Vietnam eSIM Carrier Coverage
5G/4G/LTE Network
5G/4G/LTE Network
5G/4G/LTE Network
Vietnam eSIM Activation and Compatibility: Get Ready to Fly
- Not sure your handset supports eSIM? Check the compatibility checklist first.
- We recommend turning on the line after arriving in Vietnam.
- Validity starts upon connection to a supported network.
- The QR code is delivered to your inbox once you order.
- You can install multiple eSIMs simultaneously.
- Real-world data speed for Vietnam is tracked by Ookla Speedtest Global Index — worth a look before departure.
- Want the technical background? See the GSMA eSIM pages and Apple setup support, plus its guide to using eSIM abroad.
- If your itinerary includes other countries, see the Fiji eSIM and Algeria eSIM options.
- City-hopping between Ho Chi Minh City and Hanoi? The Vietnam eSIM switches networks automatically.
- Data-only keeps the Vietnam eSIM cheap and instant — your regular line stays active for calls and messages throughout the trip.
- Crossing into Cambodia as well? A multi-country plan keeps the same eSIM live in both.
Vietnam eSIM Activation: A Simple Three-Step Guide
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Step 1: Receive QR Code
The QR code plus an activation guide land in your inbox within 5 minutes of ordering. If they do not show up, check spam.
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Step 2: Add eSIM to Phone
- Go to Settings > Cellular (or Mobile Data)
- Tap "Add Cellular Plan" or "Add eSIM"
- Scan the QR code with your camera
- Follow the prompts to complete setup
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Step 3: Activate in Vietnam
Upon arriving in Vietnam, enable your Vietnam eSIM in settings to start using data. We recommend connecting to WiFi during the initial activation.
Vietnam eSIM Benefits: Unlimited Data, 5G Speeds and Prepaid Plans
Instant QR Code
Get your Vietnam eSIM QR code via email in 5 minutes
24/7 Support
24/7 support for your Vietnam trip - real humans, not bots
100% Refund Guarantee
100% refund if your Vietnam eSIM doesn't activate
Hotspot Supported
Share your Vietnam data with travel companions, no limits
No Contracts
No contracts, cancel anytime - perfect for Vietnam trips
Auto-Switch
Auto-connects to top Vietnam carriers for the best signal
Vietnam eSIM vs Prepaid SIM Card: Is It Worth Switching?
No Fake SIM or Identity Fraud Risks
Airport stalls in Hanoi and HCMC often sell SIMs registered under fake local identities, risking sudden deactivation. eSIM is issued directly to your device, eliminating third-party fraud.
Avoid 80%+ Sunk Cost on 30-Day Plans
Viettel's V160B plan (160,000 VND) forces a 30-day cycle with daily data reset. A 5-day trip wastes over 80% of the plan. Roami's 7-day plans from $3.99 eliminate this waste.
Pay with Visa, Mastercard, Apple Pay & More
Local top-up often requires scratch cards or cash; foreign credit cards are frequently rejected. eSIM accepts Visa, Mastercard, AMEX, Apple Pay, Google Pay, and PayPal for hassle-free payment.
Bypass Vietnam's Strict SIM Passport Requirements
Vietnam mandates passport registration for all prepaid SIMs. Viettel requires sending 'TTTB' to 1414 for verification, and Mobifone demands a passport photocopy. eSIM activates instantly with zero paperwork.
Roami vs Airalo vs Holafly: eSIM Comparison
An honest look at how Roami compares with Airalo and Holafly — price, coverage and support at a glance.
| Feature | Roami | Airalo | Holafly |
|---|---|---|---|
| Free Trial | ✅ 100MB | ❌ | ❌ |
| Credit Card Required | ✅ No | Yes | Yes |
| Coverage | 200+ countries | 200+ countries | 200+ countries |
| Paid Plans from | $1.99 | $4.50 | $5.90 |
| Live Support | ✅ 24/7 | — | ✅ 24/7 |
Getting Online in Vietnam -- eSIM Network Quality and Speed Guide
Complete guide to eSIM internet speeds, network coverage, and connection quality for travelers in Vietnam. Find out what speeds to expect and where eSIM works best.
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How does Roami compare to Klook for eSIM in Vietnam?
Roami typically offers better value for Vietnam eSIM because we sell directly — no marketplace markup. Prices are usually 10-20% lower than Klook. We also provide 24/7 direct support. Plans are prepaid with no auto-renewal, so you won’t be charged after your trip ends. -
Can I get an eSIM for Vietnam without spending too much?
Absolutely. Roami’s Vietnam eSIM plans start from as low as $1.99. The 5GB/15 day option ($11.99) is the most popular among travelers — it comfortably handles maps, WhatsApp, Instagram, and email. If you’re a heavy data user, the 10GB ($8.99) or unlimited ($10.99) plans give you peace of mind. Skipping the airport SIM counter saves you 30-50% and the hassle of queuing. Need to adjust? You can top up anytime from the Roami app. -
When does the validity period of my Vietnam eSIM start?
The plan validity starts when you connect to a local network in Vietnam, not when you buy or install it. So you can purchase and install weeks before your trip without losing any plan days. A 7-day plan gives you 7 full days from first connection. -
Does the Vietnam eSIM work in rural areas and smaller towns?
Coverage in Vietnam reaches about 95% of urban areas but drops in remote locations. Speeds may fall from 200-300 Mbps (5G) to 10-30 Mbps (4G). Roami auto-switches to the strongest network. Download offline maps before heading to remote areas. -
How does eSIM compare to pocket WiFi for Vietnam travel?
Where eSIM really wins is convenience. No device to carry, charge or return at the end of the trip, worth roughly $3-5 per day against pocket WiFi rental. Pocket WiFi helps groups of 3 or more, but you are attached to one device and its 6 to 8 hour battery. With eSIM your phone is the hotspot, and all Roami plans share free with up to 5 devices. -
Will my eSIM in Vietnam work for video calls and remote work?
Absolutely. Viettel networks provide stable connections for Zoom, Teams, and Google Meet. For remote work, a 10GB or unlimited plan is recommended. The eSIM also supports hotspot sharing for your laptop. -
How do I know if my Vietnam eSIM plan is active and ready to use?
After purchasing, you’ll receive the QR code within minutes. Install it before your trip. The plan activates automatically when your phone connects to a network in Vietnam — you’ll see a carrier name in your status bar. You can verify by opening any webpage or checking your Roami account. If nothing happens after 2 minutes, enable Data Roaming or restart your phone. -
Can I use my Vietnam eSIM right after buying it, or do I need to wait?
The QR code arrives within minutes. Install it right away — it takes 2 minutes. However, the plan validity only starts when you connect to a network in Vietnam. So you can install weeks before your trip without losing any plan days. -
Does the Vietnam eSIM come with a phone number, or is it data-only?
Roami Vietnam plans are data-only, which keeps prices low and activation instant. Your regular number stays active, so calls and SMS keep arriving on your home SIM while the eSIM handles data in Vietnam. -
Can I use my Vietnam eSIM in Cambodia too?
A Vietnam-only plan is designed for Vietnam. If the trip continues into Cambodia, choose a regional or multi-country plan so one eSIM keeps working across the border.
