Help topic
Before you buy
Everything to check before you buy: your phone, what an eSIM is, and how Olysim works.
5 guides
- 1What is an eSIM and how does it work?An eSIM is a SIM card built into your phone. Instead of putting in a plastic card, you scan a QR code and the plan downloads to your phone in a few minutes.2 min read
- 2Is my phone eSIM compatible? How to checkDial *#06# on your phone. If you see a number called EID, your phone supports eSIM. Your phone also needs to be unlocked, so it can use other networks.2 min read
- 3Does a travel eSIM come with a phone number?Most Olysim plans are data only, so they do not come with a phone number for calls or SMS. Your own number stays on your normal SIM, and apps like WhatsApp…2 min read
- 4What does "data only" mean?A data-only plan gives you mobile internet, but no phone number for normal calls or SMS. You can still call and message people through internet apps like…1 min read
- 5How to buy an Olysim eSIM, step by stepPick your destination on olysim.com or in the Olysim app, choose a plan, pay, and your QR code arrives by email within seconds.1 min read

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