Vietnam eSIM: instant data for your trip
A Vietnam eSIM from Simnity gives you mobile data the moment you land, with no physical SIM and no roaming bills. We currently offer 34 Vietnam plans starting from $1.84 with validity from 3 to 180 days. Unlimited-data options are available for heavier users. Buy online, receive your QR code instantly, and connect in minutes.
Mobile coverage and networks in Vietnam
Vietnam has excellent 4G coverage nationwide and rapidly expanding 5G, with all three big carriers having launched commercial 5G in cities by mid-2025. Viettel has the strongest rural coverage.
The main mobile networks in Vietnam are Viettel, Vinaphone, MobiFone and Vietnamobile. Your Simnity eSIM connects to local partner networks, so you stay online across cities and most travel areas without swapping a physical SIM.
Do you need to register a SIM in Vietnam?
No registration is required for a roaming travel eSIM. The in-person passport registration enforced in Vietnam applies to local SIMs, not to international travel eSIMs.
What is a Vietnam eSIM?
An eSIM is a digital SIM built into your phone. Instead of swapping a plastic card, you scan a QR code and a Vietnam data plan is added to your device. Your normal number stays active on your main line, so you keep receiving calls and texts while you use the Simnity plan for affordable local data in Vietnam.
How to set up your Vietnam eSIM
- Choose a plan above based on how many days you are in Vietnam and how much data you need.
- Check out and pay. Your eSIM QR code arrives instantly by email and in your dashboard.
- Scan the QR code from your phone settings while on Wi-Fi, ideally before you travel.
- Turn on the line and data roaming for Simnity when you arrive, and you are connected.
Why buy your Vietnam eSIM from Simnity
- Instant delivery. No waiting, no pickup counters. Your Vietnam eSIM is ready in minutes.
- No roaming shock. Pay a fixed price up front and avoid surprise carrier bills.
- Keep your number. Your main line stays active for calls and texts from home.
- Unlimited options. Heavy data days are covered with unlimited Vietnam plans.
- Top up anytime. Running low? Add more data without buying a new eSIM.
Vietnam eSIM FAQs
How much does an eSIM for Vietnam cost?
Simnity Vietnam eSIM plans start at $1.84 and go up to $89.00 depending on the data amount and validity you choose. There are 34 plans available right now.
Do I need to register or show ID for a Vietnam eSIM?
No registration is required for a roaming travel eSIM. The in-person passport registration enforced in Vietnam applies to local SIMs, not to international travel eSIMs.
How do I activate my Vietnam eSIM?
After you buy, you receive a QR code by email and in your Simnity dashboard. Open your phone settings, choose to add a cellular or mobile data plan, scan the QR code, and turn on data roaming for the Simnity line. Most travelers are connected within a few minutes.
Which networks does a Vietnam eSIM use?
Mobile service in Vietnam is provided by Viettel, Vinaphone, MobiFone and Vietnamobile. Simnity Vietnam plans run on local partner networks, so you get coverage in cities and most travel areas.
Will my phone work with an eSIM in Vietnam?
Any eSIM-compatible, carrier-unlocked phone works. That includes iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy S and Z models. Check Settings for an "Add eSIM" or "Add data plan" option to confirm.
How long is a Vietnam eSIM valid for?
Validity ranges from 3 to 180 days, so you can match the plan to a short trip or a longer stay. Validity starts when the eSIM connects to a network in Vietnam.
