I’m going to Vietnam for 3 weeks should I buy this T-Mobile international plan for $50 or is it cheaper to get a ESIM at the airport when I arrive over there? I don’t need phone calls or texts I just need data

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We were in Vietnam with T-Mobile. texts work great we communicated via messenger and what’s app at the hotel wifi your wifi will work but it is slow you will still be able to navigate and use grab we had no need to add a sim same for thailand South Korea Taiwan
The tmobile plan worked well for me. Service was great too. Had service in the middle if a river in the country side lol
I just got back from Vietnam on Thursday 1/28. I used Ubigi for esim for data. I paid $25 for 20GB for 7 days.
Get a local sim(not from the airport) it’s like $15/mo, last time I was there anyways.
I did both for my wife’s phone and mine. We still had problems in spots with a lot of people. We ended up using WiFi a lot.
Don’t get it. I spent 2 weeks in Thailand and didn’t need to get any extra coverage. They give enough data for international use and there enough places with free wifi.
A Vietnamese physical sim is about 7.50USD per month for 6gb per day and a local number. $50 seems rather expensive for the convenience of keeping your home number.
Ubigi eSIM
e sim for sure. Costed me $18 for 2 weeks. Didn’t run out of data the whole time. Coverage every where.,
If you need esim or Sim card. You have to purchase at the air port. You can’t buy anywhere else.