Vietnam eSIM
Vietnam eSIM
Vietnam gets covered end to end - the sleeper train down the coast, a flight into Da Nang, a week in the Mekong. One plan carries the whole route on the same three networks a local phone uses.
Unlimited DataUnlimited
Unlimited Pro DataUnlimited Pro
Fixed DataFixedChoose Duration:
Unlimited Data - 3 days
$9.15Unlimited Data - 7 days
$18.00Unlimited Data - 10 days
$30.50Unlimited Data - 15 days
$42.00
Enjoy 3 GB High Speed Data daily, then unlimited browsing at 256kbps after the allowance. Reset Every Day
FUP limits applicable. Switch to Unlimited Pro.
Unlimited Data - 3 days
$9.15Description
Data Allowance:
3GB, 5GB, 10GB, 20GB and Unlimited data.
Validity Period:
3 days, 7 days, 10 days, 15 days, 20 days and 30 days.
SIM Form:
eSIM
Data Speed:
5G / 4G / LTE
Countries Covered:
Vietnam
Mobile Plan Type:
Prepaid
MService:
Data Only
List Of Coverage
Vietnam:
viettelvinaphonemobifone
How to check Vietnam eSIM Compatibility?
Dial *#06# and press the call
Can you see your device’s eSIM unique identification number (EID)?
If yes, your phone is eSIM compatible.
How to set up your Olysim travel eSIM in 3 steps
Choose a plan, scan the QR code that lands in your email, and switch the line on when you arrive. Install it on wi-fi before you travel - data only starts counting once you connect at the destination.
Why buy a Vietnam travel eSIM from Olysim
Pick the size that fits the trip
A long weekend and a month in Vietnam need very different plans, so you choose the data and the days. Around 3GB covers a week of maps, messaging and a daily scroll; 10GB carries a fortnight with video calls home.
Set it up at home, land connected
The QR code arrives by email seconds after payment. Scan it on wi-fi before you leave, and the Vietnam line comes alive on its own once you land and switch it on.
Someone answers, any hour
Stuck on the install, or the line will not attach after landing? Message us and a person replies, whatever the hour is where you are.
What is an eSIM and how does a travel eSIM work?
A SIM built into the phone
Phones from the iPhone XS onward, and most Android flagships since 2019, carry an eSIM slot alongside the usual tray. Adding a travel plan writes it to that slot, and your everyday SIM stays where it is.
The QR code is the plan
Scanning the code from your email writes the plan onto that handset. It installs once and stays there, so scan it on the phone you are actually travelling with.
Skip the arrivals counter
Buying a local SIM at arrivals usually means a passport, a form and a queue, in a language you may not read. An eSIM is already on the phone when the wheels touch down.
Why travellers trust Olysim
- Didn't activate? Full refund.If your eSIM has a technical issue, you get a refund within 30 days.
- 100% secure paymentPay by card or PayPal — encrypted checkout.
- Help whenever you need it24/7 live chat and WhatsApp support, before and during your trip.
Vietnam eSIM: frequently asked questions
Vinaphone, Viettel and Mobifone, the three carriers that cover Vietnam nationally. Your phone settles on whichever is strongest where you are, so the reach matches a local prepaid SIM on those networks.
One plan covers the whole country. Vietnam is a single coverage area here, so the train north to south, the domestic hops and the Mekong Delta all run on the profile you installed once.
All three sit inside the national footprint of Vinaphone, Viettel and Mobifone, so the plan reaches them the way a Vietnamese SIM would. Out on open water or deep in a mountain valley, reach comes down to the network itself.
Any carrier-unlocked phone with eSIM support: iPhone XS or later, Pixel 3 or later, and most Android flagships from 2019 on. Look for Add eSIM in your network settings before you buy.
Either works, as long as you have wi-fi for the install itself. Most people scan the QR code at home the night before, so the plan is already on the phone and switches on at Noi Bai or Tan Son Nhat.
Yes. Top up from the Olysim app and the data lands on the same eSIM, so the profile stays where it is and nothing needs installing twice.
Vietnam eSIM customer reviews
What travellers said after using it
4.7
Based on 3 reviews
Every review is checked before it appears, and we publish every genuine one, good or bad. Verified purchase means the reviewer bought this eSIM from us.
I purchased Olysim for Vietnam, and it worked really well. The support team was also very helpful and provided excellent service.
Greatest experience with Olysim at China with uninterrupted services provided for one week. Previously also I have used Olysim for my Vietnam tour. Egarly waiting for my next tour.Thanks Olysim.
used during my Vietnam trip and was working very well. My friend was on roaming recharge he was not getting speed but I was having food speed.
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