Vietnam eSIM plans start at $3.99. Choose from 29 plans for Vietnam, including unlimited data from $4.49, valid 1 to 30 days, on 3G/4G networks. 36 regional plans also cover Vietnam together with neighbouring countries.
Pick a plan and pay. Your eSIM QR code arrives by email within minutes.
Install before you fly
On Wi-Fi, open Settings › Mobile Data › Add eSIM and scan the QR code. Leave the line switched off for now.
Switch on in Vietnam
After landing, turn the eSIM line on and enable data roaming for it. The plan starts when it connects to a local network.
Networks and coverage in Vietnam
Plans for Vietnam run on 3G/4G. The eSIM connects automatically to the best available partner network.
Mobile internet in Vietnam: what to know
Local operators, coverage, airport Wi-Fi and restrictions travellers should know about in Vietnam.
Main operators
Viettel, Vinaphone, MobiFone, Vietnamobile
Coverage and speed
In Opensignal's August 2026 report, Viettel had by far the best Coverage Experience score (8.4/10) and the highest reliability, with Viettel, MobiFone and Vinaphone close on download speed. Vietnamobile trailed on speed and coverage.
5G
5G is offered by Viettel, Vinaphone and MobiFone but is still limited: in Opensignal's August 2026 data even Viettel users were on 5G only about 14% of the time.
Airport Wi-Fi
Hanoi's Noi Bai International Airport has free Wi-Fi (network "@Airport Free Wifi - Goldsun") in the seating areas of both the domestic and international terminals. Connect, wait for the login page and press "Connect to the Internet".
Restricted apps
Telegram has been blocked in Vietnam since late May 2025 on government order.
Emergency number
113 (police), 114 (fire), 115 (ambulance)
Practical tips
Under Decree 163 (December 2024), operators must verify subscriber identity against the national database before activating local SIMs.
eSIM plans for Vietnam start at $3.99 for 1 GB / 7 days. There are 29 plans to choose from, priced between $3.99 and $276.99.
Is there an unlimited data eSIM for Vietnam?
Yes. Unlimited data plans for Vietnam start at $4.49 and are available for 1 day, 3 days, 5 days, 7 days, 10 days, 15 days, 30 days. The local network's fair-usage rules may apply to very heavy use.
Which network does the eSIM use in Vietnam?
The eSIM connects to local partner networks in Vietnam and supports 3G/4G. It selects the strongest available network automatically.
Does the eSIM also work in neighbouring countries?
A plan for Vietnam works only in Vietnam. If you visit more countries, a regional plan such as Asia covers 13 countries with one eSIM.
Do I get a local Vietnam phone number?
No. These are data-only plans. Your own SIM stays active, so you keep receiving calls and SMS, and apps like WhatsApp work over the eSIM data.
When does my Vietnam plan start?
Validity starts when the eSIM first connects to a network in Vietnam, not when you buy or install it. You can install it days before your trip.
How much data do I need for a week in Vietnam?
For a 7-day trip with maps, messaging and social media, 10 GB is usually enough. Our pick for that: 10 GB / 30 days – $20.99.
Can I install the eSIM before travelling to Vietnam?
Yes, and we recommend it. Install it at home on Wi-Fi, keep the line switched off and turn it on after landing in Vietnam.
Can I share data with a hotspot?
Yes. Unless the plan details say otherwise, you can share the eSIM data with your laptop or tablet using personal hotspot.
How do I know if my phone supports eSIM?
Dial *#06#. If an EID number appears, your phone supports eSIM. The phone must also be unlocked (not tied to one carrier).
Which apps are blocked or restricted in Vietnam?
Telegram has been blocked in Vietnam since late May 2025 on government order.
Is there free Wi-Fi at airports in Vietnam?
Hanoi's Noi Bai International Airport has free Wi-Fi (network "@Airport Free Wifi - Goldsun") in the seating areas of both the domestic and international terminals. Connect, wait for the login page and press "Connect to the Internet".
Which network has the best coverage in Vietnam?
In Opensignal's August 2026 report, Viettel had by far the best Coverage Experience score (8.4/10) and the highest reliability, with Viettel, MobiFone and Vinaphone close on download speed. Vietnamobile trailed on speed and coverage.
+10 country
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