For most travellers, an eSIM activated before landing (Airalo, Saily or Holafly) or a Viettel SIM picked up in town beats an airport kiosk on price. Viettel covers rural and mountain routes best, eSIMs skip the passport queue entirely, and a few apps — LocalPay among them — now throw in a free eSIM when you sign up.
Getting online is usually the first thing on the to-do list after touching down in Vietnam — for maps around Hanoi's Old Quarter, ride-hailing in Ho Chi Minh City, or just staying in touch on a long ride through the Ha Giang Loop. Coverage across the country is strong, with 4G nearly everywhere and 5G expanding, but the SIM or eSIM you pick still shapes how much you pay and how much time you lose at the airport.
One thing that doesn't change: SIM registration is mandatory in Vietnam, so a passport is required at purchase no matter where you buy — airport counter or city shop. eSIMs largely avoid this since they're bought and activated from an app before you ever land. Here's a rundown of the main ways tourists get connected in 2026, plus a couple of options worth knowing about that go beyond just data.
1. LocalPay's free eSIM offer
LocalPay — the QR payments app already used across Vietnam, Indonesia and the Philippines — is currently throwing in a free 5GB Vietnam eSIM for new signups. The idea is simple: land already connected, skip the airport SIM counter entirely, and have a payments wallet ready to go for cafes, markets and street vendors that take local QR codes.
It's not built to replace a proper long-stay data plan, but for a standard trip it's enough for maps, messaging and booking rides from the moment you touch down — and it comes bundled with the app's payment features rather than as a standalone SIM product.
2. Viettel (physical SIM)
Viettel is the country's biggest carrier and the go-to pick for anyone leaving the main cities behind. Its rural and mountain coverage beats the other two carriers by a wide margin — a real factor on routes like Sapa, Ha Giang and Phong Nha where rivals lose signal.
Look for tourist SIM packages at official Viettel outlets and select convenience stores; city prices undercut the airport by a good margin. Have your passport ready for registration and choose from prepaid bundles that run from a few days up to a month.
3. Vinaphone (physical SIM)
Vinaphone staffs tourist SIM counters right in the arrivals halls at Noi Bai (Hanoi), Tan Son Nhat (Ho Chi Minh City), Da Nang, Cam Ranh and Phu Quoc — the most convenient pickup of the bunch if you want data working before you even leave the terminal.
Expect to pay 20–30% more at the airport than for an identical plan bought in town, which is the trade-off for instant setup. Airport bundles generally land somewhere between 125,000 and 375,000 VND depending on data and how long the plan lasts.
4. Mobifone (physical SIM)
Mobifone holds its own in cities and the more popular tourist spots, with pricing that tracks close to Vinaphone. It's a reasonable fallback if the Viettel or Vinaphone counter you find is out of tourist SIMs, though it trails Viettel once you're well off the main routes.
5. Airalo
Airalo remains one of the go-to global eSIM marketplaces, offering Vietnam plans anywhere from a quick 3-day pass to a full month. It suits anyone who wants a straightforward app-based install before departure, with data priced per GB instead of unlimited.
6. Holafly
Holafly sticks to unlimited-data eSIM plans, with the per-day cost falling the longer you stay. That's a good deal for extended trips or remote workers who'd rather not watch a data counter, though it costs more than per-GB plans if you're only in the country briefly.
7. Saily
Saily, built by the team behind NordVPN, sells Vietnam-specific eSIMs alongside regional "Ultra" bundles for anyone hopping between several Southeast Asian countries on one trip. That makes it a natural fit for multi-stop travel where juggling separate local SIMs would be more hassle than it's worth.
A few things to check before you buy
- Bring your passport regardless of where you buy — SIM registration in Vietnam applies to tourists and locals alike.
- City stores typically beat airport kiosks by 20–30%, but the airport wins if you value speed over savings.
- Activate an eSIM on wifi shortly before or after landing, and double-check your phone supports it first.
- Heading somewhere remote like Ha Giang or Sapa? Coverage should outrank price in your decision.
- Visiting more than one country on the trip? A single regional eSIM is usually cheaper than buying local SIMs at each stop.
No single option wins for every trip — it depends on how remote your itinerary gets, how long you're staying, and whether saving money or saving time at arrivals matters more to you. Viettel is the safest choice for coverage once you leave the cities, an eSIM from Airalo, Holafly or Saily gets you online the fastest, and a bundled offer like LocalPay's free eSIM is worth taking if you're setting up a digital wallet for the trip regardless.
Frequently asked questions
Yes — SIM registration is mandatory for everyone in Vietnam, tourists included, so have your passport on hand at the counter.
An eSIM is the more convenient route since it can be set up before you land, with no passport paperwork at a counter. A physical Viettel SIM is the safer bet if you're heading somewhere remote or mountainous, where network coverage matters more than convenience.
Airport bundles usually fall between 125,000 and 375,000 VND depending on data and duration. The same plan — or a better one — bought in the city tends to cost noticeably less, often around $10 for roughly 20GB.
A handful of apps offer a free or discounted eSIM as a signup perk. LocalPay currently bundles a free 5GB Vietnam eSIM with new signups on top of its QR payments wallet.
