An eSIM (embedded SIM) is a SIM card that lives as software on a chip already soldered inside your phone. Instead of swapping a plastic card, you scan a QR code or enter a few details and the eSIM profile downloads to your device in seconds.
What's the same as a physical SIM
- Your phone connects to a real mobile network operator (Vodafone, Telefónica, STC — whichever provider partners with your destination).
- You get a phone number for data; voice and SMS depend on the plan.
- Data, speed, coverage, and signal behaviour are identical to a plastic SIM on the same network.
What's different
- No shipping. The profile is delivered by email the moment your payment clears — usually within 30 seconds.
- You can keep your home SIM in the same phone and switch between them. Most modern phones support 2 active SIMs at once.
- You can store multiple eSIM profiles (e.g. one per country) and switch in Settings.
- Lost phone? You can transfer the profile to a new device on most networks.
When eSIM doesn't make sense
- If your phone is older than ~2018 it probably doesn't support eSIM. Use the compatibility checker on our homepage.
- Some carriers in some countries still don't sell eSIM profiles to consumers — in those cases a roaming plan from your home carrier might be cheaper.
That's it. The rest is the same as any other SIM.
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Continue reading
How to check if your phone supports eSIM
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Five things to do 24-48 hours before you fly so you land with working data on the first attempt.
How to install your esima eSIM on iPhone
Step-by-step iPhone install via QR code. Works on iPhone XS and newer, including the install-anywhere quick scan flow.