eSIM for Vietnam
One eSIM from Hanoi to Hoi An to Saigon. No roaming bill, no airport SIM stall, no passport photo at the counter.
Covers Hanoi, Hoi An and Ho Chi Minh City
No SIM stall queue at Noi Bai or Tan Son Nhat
Free data, data per GB, or unlimited data
One eSIM for 176 + countries
Trusted by 1.3M+ users
Global data & calling
One eSIM for the globe
A Free Global Connection
Compare all plans
Why Firsty is different in Vietnam
Same price as everywhere else Vietnam is cheap. Your data should be too. €0.98 per GB on Prepaid, from €2/day on Unlimited, the same as in Thailand, Japan or Italy. No Southeast Asia surcharge, no island premium on Phu Quoc. Buy data that never expires Most travel eSIMs make you buy GBs that expire in 7 or 30 days: use it or lose it. With Firsty Prepaid, the GBs you buy stay on your account forever. Bought 10 GB and only used 4 between Hanoi and Hoi An? The other 6 are still there for Bangkok, Bali, or your next trip.
How it works
How Firsty works in Vietnam
How much data do you need in Vietnam?
Hanoi or Saigon city break
North to south
Backpacker / remote worker
Real benchmarks
Aww, We love you too!!
Where's Life Taking You next?
Get connected to the Firsty Network
Price table
Prepaid (use anywhere, never expires)
Data | Price | €/GB |
|---|---|---|
1 GB | €4,50 | €4,50 |
3 GB | €7,50 | €2,50 |
5 GB | €9,50 | €1,90 |
10 GB | €17,00 | €1,70 |
20 GB | €26,40 | €1,32 |
50 GB | €49,00 | €0,98 |
Unlimited (day pass or monthly)
Duration | Price | €/day |
|---|---|---|
1-6 days | €3,00/day | €3,00 |
7-14 days | €2,75/day | €2,75 |
15-19 days | €2,50/day | €2,50 |
20+ days | €2,20/day | €2,20 |
Monthly subscription | €59/month | €2,00 |
Where in Vietnam does Firsty work?
Hanoi: Fast 4G across the Old Quarter, West Lake and the airport road, with 5G in central districts.
Ho Chi Minh City: Strong 4G and 5G in District 1, District 3 and Thao Dien.
Da Nang & Hoi An: Reliable on My Khe beach, in Hoi An's Old Town and up to the Marble Mountains.
Ha Long Bay: Good signal on most cruise routes; expect weak spots between the outer islands.
Sapa & Ha Giang: Works in towns; drops out on remote mountain passes on the Ha Giang Loop.
Phu Quoc & the Mekong Delta: Good around Duong Dong and Can Tho; patchier on remote beaches and river backwaters.
Questions and answers
As we develop our app you might encounter things you're not sure of. We're here to help. Below you'll find frequently asked questions on the Firsty eSIM, Firsty's data plans, and more.
What are the eSIM plans available in Vietnam?
The best eSIM plans available in Vietnam cater to various data needs. Firsty offers both free and paid plans for seamless connectivity. With Firsty Free, you receive ad-supported data for basic internet use. For heavy data users needing high-speed internet for streaming and video calls, Classic and Unlimited are ideal, especially in busy cities like Ho Chi Minh City and Hanoi.
How can I activate a travel eSIM for Vietnam?
Activating a travel eSIM for Vietnam is straightforward:
Ensure you have a stable Wi-Fi connection to download the Firsty app.
Open the app and follow the easy setup process to activate your free eSIM.
When you arrive in Vietnam, your connection will be ready immediately.
For faster internet, upgrade to Classic or Unlimited, which you can purchase and activate anytime without needing WiFi.
Which network does Firsty use in Vietnam?
Firsty connects to Viettel and MobiFone and picks the strongest signal automatically. Viettel has the widest coverage in the mountains, the Mekong Delta and Ha Long Bay. Expect short gaps on remote passes in Ha Giang and between islands.
How do I use an eSIM in Vietnam?
Install Firsty at home on Wi-Fi, then switch mobile data to your Firsty line when you land. It activates automatically at Noi Bai, Tan Son Nhat, Da Nang, Cam Ranh or Phu Quoc as soon as your phone finds a network.
Is Firsty Free enough for a trip to Vietnam?
For light use: messaging, maps, Grab, email, yes. The free tier runs at basic speed and you earn data by watching short ads. For HD video, streaming, or hotspot, you'll want Prepaid or Unlimited.
Can I use my Firsty eSIM as a hotspot in Vietnam?
Yes. Share your data with your laptop or a travel buddy on Prepaid or Unlimited. On Unlimited you get 5 GB a day at high speed, then 512 Kbps until your next day or top-up, so save big downloads for hotel Wi-Fi.
Can I make calls and send SMS with Firsty in Vietnam?
Firsty is a data eSIM: calls and texts work through Zalo, WhatsApp, FaceTime, or any internet-based app. International calling to 200+ countries is available through the Firsty app at transparent per-minute rates.
What devices work with Firsty in Vietnam?
Any eSIM-compatible phone bought in the EU, US, UK, Canada, or Australia after 2018. iPhone XS or newer, recent Samsung Galaxy, Google Pixel, and most other modern Android phones.