Data roaming on or off? How to set it for your eSIM
Quick answer
Turn Data Roaming on for the Olysim eSIM and off for your home SIM. A travel eSIM always counts as roaming, and roaming on Olysim costs nothing extra.
This one setting fixes most "no internet" problems abroad.
Step by step
- 1Step 1 of 5
iPhone: open Settings > Mobile Service and tap the Olysim line.
Called Cellular on some iPhones.
- 2Step 2 of 5
Turn Data Roaming on.
Do this for the Olysim line only.
- 3Step 3 of 5
Go back, tap your home SIM and turn Data Roaming off.
This stops roaming data charges from your home network.
4Step 4 of 5Android: open Settings > Network & internet > SIMs, or Connections > Mobile networks on Samsung.
Then pick the Olysim eSIM.
5Step 5 of 5Turn Roaming on for Olysim and off for your home SIM.
On some Samsung phones, roaming is one switch for the SIM chosen for data.
Common questions
Will I be charged for roaming on the Olysim eSIM?
No. You have paid for the plan already. Roaming is just how the eSIM connects abroad.
Why does a travel eSIM need roaming on?
The eSIM uses partner networks in the country you visit. Your phone sees that as roaming, so it needs the switch on.
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