Vietnam eSIM: Fast 5G Data for Every City & Destination
Instant activation | Top-rated 5G coverage | 24/7 support - the best prepaid eSIM for Vietnam
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Roami eSIM: Save up to 30% vs. leading competitors.
Buy Vietnam eSIM: Plans for Every Trip Duration
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: Network Coverage & Operator Comparison
Service Details
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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 in urban centers, tourist hotspots, and along major transportation routes.
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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 Setup Tips: What to Know Before You Go
- Ensure your phone is eSIM compatible before buying.
- We recommend turning on the line after arriving in Vietnam.
- Validity starts upon connection to a supported network.
- The QR code will be sent to your email.
- You can install multiple eSIMs simultaneously.
How to Install Vietnam eSIM: 3 Simple Steps
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Step 1: Receive QR Code
After payment, a QR code and activation guide will be sent to your email within 5 minutes. Please check your spam folder if you don’t see it.
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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.
Why Vietnam Travelers Choose Roami: Network, Plans & Value
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
Not Available
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 $1.99/GB 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.
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 ($9.99) is the most popular among travelers — it comfortably handles maps, WhatsApp, Instagram, and email. If you’re a heavy data user, the 10GB ($14.99) or unlimited ($59.99) 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?
eSIM wins on convenience. No device to carry, charge, or return at the end of your trip — saves about $3-5 per day compared to pocket WiFi rental. Pocket WiFi works for groups of 3+, but you’re tied to one device and need to keep it charged for 6-8 hours. With eSIM, your phone is your hotspot. All Roami plans include free hotspot sharing for 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.
