Vietnam moves fast, and you will keep up through your phone — Grab bikes weaving through Hanoi traffic, translating a street-food menu, and booking the next sleeper train. Here is the real coverage picture.
The networks
Vietnam's carriers are Viettel, Vinaphone, and Mobifone. Viettel has the widest, strongest coverage by a clear margin — the military-run network reaches deep into rural areas. A travel eSIM typically connects you to fast 4G.
Hanoi & Ho Chi Minh City: Blanket 4G/5G. The Old Quarter, District 1, the ride-hailing apps — all fully covered.
Ha Long Bay: Good coverage near shore and at the harbour; on an overnight cruise among the karst islands, expect signal to come and go. Enjoy the view — upload when you dock.
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Hoi An, Da Nang, Hue, the coast: Full 4G in the towns and along the main routes.
The mountains (Sapa, Ha Giang): Viettel holds up surprisingly well in the highlands, though remote passes have gaps. Download offline maps for a motorbike loop.
Why an eSIM beats the airport SIM
Yes, cheap SIMs are sold at the airport — but it means a queue, your passport, and a hard-sell after a long flight. An eSIM installed at home means you land, switch it on, and book your Grab before leaving the terminal. Keep your home SIM in for your number.
How much data?
- One week: 5–8 GB.
- Two–three weeks (north to south): 10–15 GB.
- Heavy user / hotspot: 20 GB+ or unlimited-style.
Land ready to navigate the chaos. Get your Vietnam eSIM and travel connected.
What is the best eSIM for Vietnam?
The best eSIM for Vietnam is the plan that fits how much data you use and runs on a strong local network. For a typical trip, 5 GB for 30 days costs $8.50. If you stream, work online or share a hotspot, Unlimited costs $13.76 for 20 days. TripoSIM plans for Vietnam start at $1.70, run on Vietnamobile, VinaPhone, MobiFone, Viettel, and the days only start counting when the eSIM first connects in Vietnam, so you can install it before you fly.
| Your trip | Plan | Price |
|---|---|---|
| About a week of light use (maps, messages) | 1 GB for 7 days | $1.70 |
| 1–2 weeks of everyday use | 5 GB for 30 days | $8.50 |
| Heavy use, video calls or a long stay | 20 GB for 30 days | $17.22 |
| Streaming, hotspot or remote work | Unlimited for 20 days (1 GB a day at full speed, then slower) | $13.76 |
Live prices in US dollars, checked November 15, 2026. 23 plans for Vietnam are available. See all Vietnam plans →
Vietnam eSIM — connected the moment you land
Install before you fly. Keep your number. No roaming bills.
5 GB · 10 days
🎁 Discount applied at checkout
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$0.24/day·$1.70/GB
$1.70/GB
Works on: Vietnamobile, Vinaphone
⚡ 1 GB/day at full speed, then 384 kbps
$0.69/day
⚡ 1 GB/day at full speed, then 384 kbps
$0.69/day
⚡ 1 GB/day at full speed, then 384 kbps
$0.69/day
⚡ 1 GB/day at full speed, then 384 kbps
$0.69/day
⚡ 1 GB/day at full speed, then 384 kbps
$0.86/day
Save on your Vietnam eSIM
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