Best eSIM forVietnam.
Instant data on Viettel 5G — auto-activates the moment you land. Plans from $3.20.
Built for the way you'll travel here.
5G in major cities
Viettel 5G is live in Hanoi, Ho Chi Minh City and Da Nang. Full LTE everywhere else.
Connect at the airport
Your eSIM auto-activates the moment you land at SGN, HAN, or DAD. No queues, no shop.
Keep your number
Use your home line on your physical SIM and dodoesim on your eSIM. Two lines, one phone.
60-second install
Scan a QR code from your hotel email. Up and running before you reach baggage claim.
Pick a plan. Get connected.
All plans run on Viettel 5G with auto-fallback. Activates the moment you land — no SIM swap, no roaming bills.
Choose your data plan
How many eSIMs?
One per device or travelerAdd-ons
Optional, you can skip theseWhy dodoesim?
See how we stack up against the rest of the industry, feature by feature.
Comparison based on publicly available information from each provider, as of 2026. Features and pricing may vary by destination.
Start your tripFrom booking to boarding, all in one app.
Choose a plan, install your eSIM, and you're connected the moment you land.
Pick the perfect plan
Browse data plans by country or region. Plans start at $3 — pay only for what you need.
Explore plansBefore you land in Vietnam.
Small things that make a big difference once your eSIM is live.
Download Grab before you land
Vietnam's default rideshare. Works with eSIM data the second you connect.
Save offline Google Maps
Cities are dense and traffic-heavy. Offline maps are a backup for the rare LTE dropout.
WhatsApp + Zalo together
Locals use Zalo more than WhatsApp. Install both before your trip.
Keep Booking.com cached
Most hotels respond fast in-app. Useful when changing plans mid-trip.
Everything about eSIM in Vietnam.
Yes. dodoesim connects to Viettel — Vietnam's largest network — with 5G in all major cities and LTE nationwide.
Viettel as the primary network, with automatic fallback to Vinaphone and Mobifone if signal isn't available.
Yes. Your eSIM auto-activates as soon as you land at SGN (Ho Chi Minh City), HAN (Hanoi), or DAD (Da Nang). You don't need to buy a physical SIM at the kiosk.
No — dodoesim handles all registration. Foreigners are not required to register travel eSIMs.
Yes, in Hanoi, Ho Chi Minh City, and Da Nang on the Viettel 5G network. Most other areas have full LTE coverage.
dodoesim plans for Vietnam are data-only. Use WhatsApp, FaceTime, iMessage, or Zalo for calls and messages.
You can top up in 30 seconds from the dodoesim app — usually for around $2/GB depending on the plan.
Loved by travelers, everywhere.
Real reviews from real travelers across 200+ destinations.
"Switched to dodoesim before my Tokyo trip — connected the moment I landed at Haneda. No SIM swap, no roaming bill. This is the way."
"Used the EU regional plan across 6 countries in 2 weeks. One install, zero issues. Speeds were perfect in Lisbon and Paris."
"I travel for work every month. The app is clean, the top-ups are instant, and customer support actually replies in minutes."
Pairing well with Vietnam.
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