Best eSIM for Vietnam

Ubigi is the clear price winner for a typical trip at about US$12.90 for 10 GB / 30 days. Nomad, Saily and Airalo cluster around US$17–18. Holafly’s ~US$76.50 unlimited month is hard to justify in one of Asia’s cheapest data markets.

Last updated: 27 Oct 2026 (Pacific/Auckland)Common partners: VNPT/Vinaphone, MobiFone, Vietnamobile

Comparison — Vietnam

Approx USD list prices from provider pages and public round-ups, checked Oct 2026. Kiwis: these are charged in USD, so roughly add 70–75% for NZD before card fees — check the exchange rate before you buy.

Provider	Data	Days	Approx price	Hotspot	Best for
Ubigi Value	10 GB	30	US$12.90	Yes	Cheapest fixed 10 GB; VNPT network; 10 GB / 7 days ~US$10.90 for short stays
Nomad	10 GB	30	US$17	Yes	Multi-network (MobiFone, Vinaphone, Vietnamobile); 20 GB ~US$25 is good value
Saily	10 GB	30	US$17.99	Yes	Clean app; unlimited plans with a stated 5 GB/day fair-use cap
Airalo	10 GB	30	US$18	Yes	Familiar app; Asia regional packs if Vietnam is one stop of many
Holafly	Unlimited*	30	~US$76.50	Capped (~1 GB/day)	Only for very heavy phone data; short 3–5 day plans ~US$12–21

Local SIM vs travel eSIM. A Viettel or MobiFone SIM bought in-country is usually cheaper, and Viettel has the best rural reach (Ha Giang loop, mountain north). The catch is registration: passport details plus face verification, sometimes repeated when you change phones. For a 1–3 week trip, a travel eSIM installed at home skips the queue; for a month-plus stay, a local SIM often wins on price.

Speed and routing. Most travel eSIMs route your traffic back through an overseas hub, so pages can feel slower than the signal bars suggest — this hits every reseller, not one brand. Make sure your phone supports 4G/VoLTE; Vietnam has been retiring older 2G/3G networks.

Quick take

For most travellers, buy Ubigi 10 GB / 30 days. If you want more than one network to fall back on outside the cities, Nomad is worth the extra ~US$4. Doing Vietnam as part of a South-East Asia loop? A regional Asia plan beats juggling country eSIMs — compare it against our Thailand page pricing first.

Check Airalo Check Holafly (official site) Check Saily (official site) Check Nomad (official site) Check Ubigi (official site) Check Yesim

FAQ

Is a travel eSIM cheaper than roaming?

Usually yes — a 10 GB travel eSIM typically costs a fraction of daily roaming passes from home carriers. Heavy users should still compare per-GB prices.

When should I install my travel eSIM?

Install it at home on Wi-Fi a day or two before you fly, but keep it switched off until you land, because many plans start their validity on first connection.

Is 'unlimited' eSIM data really unlimited?

Rarely. Most unlimited plans slow you down after a daily fair-use cap (often 1–5 GB/day) and limit hotspot use. Check the cap before you buy.