eSIM Vietnam
The Vietnam eSIM from 1,95€ runs on Viettel and Vinaphone, carries 1 to 20 GB or unlimited data, is prepaid with no contract and no registration, and puts you online the moment you land in Hanoi.
Fair Use Policy
2GB highspeed/day, then unlimited at 1Mbps
Your Selection
Your plan only starts counting when the eSIM first connects at your destination — so you can buy today and travel in three weeks.
How does Simbye eSIM work for Vietnam?
Get connected in under 2 minutes
Set it up before you fly
The link and QR code arrive by email. Install the eSIM at home on Wi-Fi – one tap or one scan is enough. You never type in an APN, and no time is running yet.
Switch it on after landing
Whether you arrive at Noi Bai in Hanoi, Tan Son Nhat in Ho Chi Minh City, Da Nang, Cam Ranh near Nha Trang or Phu Quoc: pick the eSIM as your data line, turn on data roaming, done. You walk straight past the SIM counter.
Get moving and top up
Now the validity starts. Grab, Maps and your messenger work right away, and you can share the hotspot with a laptop or a travel partner. Running low? Top up on the road.
Check Device Compatibility
Make sure your device supports eSIM before purchasing
Which networks will you be on in Vietnam?
You set nothing up – after landing the eSIM picks between Viettel and Vinaphone on its own.
The Simbye eSIM uses 2 networks in Vietnam: Viettel · Vinaphone.
Source: nPerf averages, 01.04.2025 – 31.03.2026.
Two networks are enabled on this eSIM: Viettel and Vinaphone. You don't pick one. After landing the eSIM connects on its own and switches while you travel if the other network is stronger. Viettel is the country's largest operator and carries furthest into the provinces, Vinaphone is strongest in the cities and along the coast. If nothing appears after you switch on: turn on data roaming, then flight mode off and on once. You never have to type in an APN. Worth knowing if your phone is older: Vietnam is switching off 2G completely from 15 September 2026, so your handset should support 4G. 3G is set to run until 2028.
In Hanoi, Ho Chi Minh City, Da Nang, Hue, Hoi An, Nha Trang, Da Lat and Can Tho, 4G is everywhere and the big cities also have 5G – but the national 5G rollout is still far from finished and does not reach every province. Along the coastal route, in Ninh Binh, across the Mekong Delta and on Phu Quoc you'll get through fine. It thins out in the mountains and on the water: on the Ha Giang Loop, on the passes around Sapa, inside the caves at Phong Nha and on boats in Ha Long and Lan Ha Bay, signal can disappear for hours. Download maps, tickets and translations offline before you go.
eSIM or a local SIM card in Vietnam?
Vietnam splits by what you need: the eSIM is ready before you land and asks for no ID, while a local SIM means a shop photographing your passport — but it brings the +84 number that Zalo and MoMo want.
Buying a Vietnam eSIM before you fly
Travel to Vietnam on your home contract and you pay foreign rates. Most carriers either bill per megabyte or sell you a day pass that costs money for every travel day you touch and usually includes only a small allowance. Spend three weeks riding from Hanoi to Saigon and you pay for the days you only glanced at the map twice – and you see the total only on the bill after the trip.
Then there's daily life on the ground. In Vietnam almost everything runs through your phone: ordering a Grab, finding the driver in the crowd, sending the hostel your arrival time, booking the sleeper bus, showing an address in Vietnamese. Without data you're standing at the roadside haggling with a taxi driver over a price you have no way to judge.
The eSIM is pure prepaid: no contract, no notice period, no registration, no bill afterwards. You buy it online before you fly, pick 1 to 20 GB or unlimited for 7 to 30 days, and top up when it runs low. If your home plan already includes an international package, just put the two side by side – that's more honest than any promise on this page.
Where the networks reach – and where they don't
In the north, Hanoi is solidly covered, and so are Ninh Binh and Ha Long. But once you're on a boat in Ha Long or Lan Ha Bay, or climbing the passes on the Ha Giang Loop, it turns patchy. Around Sapa you'll have signal in town and often nothing on the trails out to the villages. Plan Ha Giang so your route and accommodation are already offline on your phone.
Through the centre, the coastal corridor is steady: Hue, Da Nang, Hoi An and everything in between work without trouble, and Da Nang is fast. The outlier is Phong Nha. Inside the caves and in the karst gorges around them the signal is gone, on Viettel as much as on Vinaphone – that's geology, not a plan problem.
In the south, coverage carries reliably through Ho Chi Minh City, Mui Ne, Da Lat, Can Tho and across Phu Quoc. It thins out on the smaller Mekong Delta channels and at the homestays between the canals, and on the crossing to Con Dao you shouldn't count on it at all. Rule of thumb: where tour buses and scooters go, the network goes. Where you need a boat or a mountain road, download first.
How much data do you need in Vietnam?
So you can work it out instead of guessing: how much an hour costs in the apps you actually use on holiday.
Just staying reachable
1–3 GB
Messages, the map now and then, checking mail. Everything else runs on the hotel Wi-Fi.
An ordinary holiday
5–10 GB
Navigating, social media, uploading photos, a few videos in the evening.
Out a lot, or a laptop along
20 GB and up
Streaming in the evening, video calls home, keeping a laptop or tablet online through your phone.
Data used per hour
The Netflix and Spotify figures come from the providers themselves (Netflix Help Center, Spotify Support, retrieved 28 Aug 2026). The rest are network-operator estimates (o2, Vodafone, EE) and vary with picture quality and reception.
What does an eSIM for Vietnam cost?
Simbye offers 8 plans for Vietnam from €1,95 to €56,95 — data packs from €1,95, unlimited from €23,95. Prepaid, no contract.
Plans for Vietnam range from 1 GB to 20 GB, plus unlimited options.
Validity runs from 7 to 30 days and starts with your first connection in Vietnam.
from €1,95
8 plans · 7–30 days · unlimited from €23,95
- 1 GB €1,95 7 days €0,27 per travel day
- 3 GB €4,95 30 days €0,16 per travel day
- 5 GB €6,95 30 days €0,23 per travel day
- 10 GB €11,95 30 days €0,39 per travel day
- 20 GB €18,95 30 days €0,63 per travel day
- Unlimited €23,95 7 days €3,42 per travel day
- Unlimited €37,95 15 days €2,53 per travel day
- Unlimited €56,95 30 days €1,89 per travel day
Good to know
- Networks
- Viettel + Vinaphone
- Setting it up
- A link in your email, or the QR code — one tap is enough
- Network technology
- 4G/LTE — and 5G where the network already offers it
- APN and settings
- Nothing to set. The eSIM brings everything with it
- Hotspot
- Allowed — for a laptop, tablet or a travel companion
- Adding more data
- Top up any time, without setting anything up again
- Calls and texts
- Not included — WhatsApp calls run over the data
- Your own number
- Stays in the phone and stays reachable
- Contract
- None. The plan ends by itself
- Worth knowing
- Roaming on your home contract gets billed here — this eSIM is prepaid, so nothing is added afterwards
Frequently Asked Questions about Vietnam eSIM
Data, calls, real phone numbers, top-ups and setup — everything you need to know before you buy a Simbye eSIM.
