eSIM For U
eSIM For USee plans
Roaming · O2 Germany · Vietnam

O2 Germany roaming in Vietnam vs a travel eSIM.

Vietnam is in the O2 Germany Roaming Plus World, and the price list has 1 data option for it. Below: about 5 GB for a week with O2 Germany, next to a travel eSIM.

  • Charged only when your eSIM is ready
  • Install in a tap
  • Apple Pay · Google Pay · card
Data plans from 1 GB to 50 GB, 10 GB for 30 days selectedCheckout with the plan, the total and the Pay button

About 5 GB for a week in Vietnam

Option7 days
O2 Germany, about 5 GB for 7 days3 × Roaming Plus World€44.97
eSIM For U, 5 GB for 30 daysSee eSIM plans€8.39
eSIM For U daily plan, 7 days1 GB per day€13.49

Official price list of O2 Germany, checked 3 Nov 2026. Standard plans; older contracts may differ. Source Prices in different currencies, not converted.

All O2 Germany data options for Vietnam

DataValidPrice
Roaming Plus World2 GB30 days€14.99

In the O2 Germany price list, Roaming Plus World covers Vietnam and 39 other named destinations, among them Turkey, Egypt, and Thailand, all at the same O2 Germany prices. Our eSIM prices are live.

Good to know before you travel to Vietnam

  • Grab and Be are the main apps for motorbike and car rides.
  • Coverage is good in cities and along the coast; on Ha Long Bay cruises and in the northern mountains it can drop.

eSIM plans for Vietnam

  • Networks for VietnamMobiFone, Viettel Mobile and Vinaphone
  • SpeedUp to 5G on all three networks. Where there is no 5G, you connect over 4G/LTE.
  • Internet runs viaSingaporeDepending on the plan. Banking or streaming apps may treat you as being there.
Vietnam eSIMMobiFone, Viettel Mobile and Vinaphonefrom €3.29
Get your Vietnam eSIM

Questions and answers

How much does O2 Germany charge for data in Vietnam?

The table shows the cheapest official O2 Germany option for about 5 GB in a week, every O2 Germany data option for Vietnam, and the source with the date we checked it.

Is Vietnam included in O2 Germany plans?

Not in the standard plans of the O2 Germany price list we checked. In Vietnam you pay a pass, a daily charge or a price per MB.

Can I keep my O2 Germany number in Vietnam?

Yes. In Vietnam, keep the O2 Germany SIM for calls and texts and use the travel eSIM for data. Turn off data roaming on the O2 Germany line so it does not use data.

Where can I see all O2 Germany roaming charges?

On the O2 Germany roaming charges page, with every destination in the O2 Germany price list.

Updated 3 Nov 2026 · checked against our live catalogue

How we check our data · Prices and plans come live from our catalogue; facts come from official sources, listed where we use them.

Sources (2)
Ready for Vietnam?

Online the moment you land.

from €3.29.

Get your Vietnam eSIM

Keep reading