Our recommended eSIMs for Vietnam
An eSIM skips the airport SIM queue and keeps your home number active for banking codes, while giving you Vietnam's inexpensive data straight away. Buy online, install before you fly, switch on when you land.
Airalo
Best valueThe broadest coverage — 200+ countries — and strong value. Buy exactly the data you need.
Check Airalo plans →Yesim
Most flexiblePer-country, regional, pay-as-you-go and a global plan across 150+ destinations.
Check Yesim plans →Saily
NordVPN teamA reliable, security-minded eSIM from the team behind NordVPN, with a clean app.
Check Saily plans →Holiday.com
ExpressVPN teamA global travel eSIM for 150+ destinations from the team behind ExpressVPN — one eSIM you top up as you go, with a privacy focus.
Check Holiday.com plans →Plans, prices and coverage change often — confirm the current plan on each provider's own page before buying. Links are affiliate links; see our disclosure.
Coverage in Vietnam
Coverage is strong across Hanoi, Ho Chi Minh City, Da Nang, Hoi An and the main tourist routes, as travel eSIMs use Vietnam's major networks. Remote highlands and small islands can be patchier.
How much data do you need?
- ◆Light use (maps, messaging, ride apps): 1–3GB per week.
- ◆Normal use (social, photos, video): a 5GB+ plan with top-up.
- ◆Heavy use or a longer stay: a larger data allowance.
Getting connected on arrival
- 1Buy your plan before you fly, while you still have your home connection.
- 2Install the eSIM when prompted (scan the QR code or tap install in the provider's app), and label the line so it is easy to find.
- 3On arrival, turn the travel eSIM's data on and enable data roaming for that line.
- 4Set your home line to 'data off' so you are never billed for roaming, and keep it active for calls, texts and two-factor codes.
Sort the rest of your Vietnam trip
Compare car-hire deals across Vietnam from all the major rental companies in one search — most bookings come with free cancellation, and prices are usually lowest when you book ahead.
Compare car hire in Vietnam →Find somewhere to stay in Vietnam — from city hotels to coastal boltholes — with free cancellation on most rooms. Filter by area and read verified guest reviews before you book.
Where to stay in Vietnam →Ha Long Bay cruises, day trips and attraction tickets.
Book Ha Long Bay, tours & tickets →Fixed-price transfers on arrival.
Pre-book airport transfers →Frequently asked questions
Does an eSIM work in Vietnam?
Yes. Travel eSIMs connect to Vietnam's major networks, with strong coverage in cities and on tourist routes and famously cheap data. Your phone must support eSIM and be unlocked.
Which is the best eSIM for Vietnam?
Airalo is the cheapest for normal use; Yesim is a flexible alternative.
Does it work on the islands and highlands?
Coverage is good on the main routes; remote highlands and small islands can be patchier for any network.