Help topic
Before you buy
Everything to check before you buy: your phone, your Indian number, and eSIM or SIM card.
7 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
- 4Can I keep my Indian number while using an eSIM?Yes. Your Indian SIM stays in your phone. Use the Olysim eSIM for data, and keep your Indian SIM on if you want calls and SMS on your own number, through your…2 min read
- 5eSIM or physical SIM card: which should I choose?Choose an eSIM if your phone supports it: it arrives by email in seconds. Choose a physical SIM card if your phone has no eSIM, and order it early so it…2 min read
- 6What 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
- 7How to buy an Olysim eSIM, step by stepPick your destination on olysim.in or in the Olysim app, choose a plan and eSIM or SIM card, pay, and your eSIM QR code arrives by email within seconds.1 min read

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