These new travel tools are currently available in English.
A smoother journey / eSIM Otter
Connected in Viêt Nam.
Your mobile-data briefing for Viêt Nam: choose a plan, check your phone, and arrive ready.
01 / Local networks
What’s in the catalog?
Our Viêt Nam destination currently lists the following networks. Check the selected plan’s network details; a listing is not a guarantee of signal at every location.
MobiFone5G
Viettel Mobile5G
Vinaphone5G
Vietnamobile4G
Coverage and speed depend on your location, device and network conditions. Catalog checked 1 oct. 2026.
03 / Arrival checklist
A smoother landing in Viêt Nam.
1
Prepare before departure
Verify your phone’s compatibility and unlock status. Read the activation rule before installing. Save your order details privately and download offline maps for your arrival.
2
Select your travel line
Once in Viêt Nam, enable the travel eSIM and select it for mobile data. Apply its roaming and APN instructions. Disable home-line data roaming and automatic data switching.
3
Check your connection
Turn off Wi-Fi briefly and load a web page. If you have no data, check your plan status, remaining allowance and supported network. Keep the profile installed while troubleshooting.
Traveling beyond Viêt Nam?
These catalog destinations include Viêt Nam. Verify each selected plan’s full coverage.