What is the difference between a SIM and an eSIM?
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Both a SIM card and an eSIM connect your device to a mobile network and give you access to calls, texts and mobile data. The key difference is in how they're delivered and managed.
| Physical SIM | eSIM | |
|---|---|---|
| Form | Small plastic card | Chip built into device |
| Delivery | Physical, must be shipped or bought in store | Digital, instant delivery by email |
| Activation | Insert card, restart phone | Scan QR code or tap a link |
| Switching plans | Must swap the card physically | Switch digitally in settings |
| Travel use | Buy local SIM at destination | Install before you leave |
| Risk | Can be lost, damaged or stolen | No physical card to lose |
| Environment | Plastic waste per card | No plastic waste |
eSIM doesn't replace your existing SIM - it works alongside it on dual-SIM phones. You can keep your regular number while using eSIM for travel data.
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