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FAQ

Frequently Asked Questions

Authoritative answers about eSIM for European travelers.

What is an eSIM?

An eSIM (embedded SIM) is a programmable chip permanently built into your device. It stores carrier profiles digitally and can switch between them remotely.

Which devices support eSIM?

iPhone XS (2018) and later, Samsung Galaxy S20 and later, Google Pixel 3 and later, and select Xiaomi and Motorola models.

Do I need to unlock my phone?

Yes, in most cases. Carrier-locked phones may only accept eSIM profiles from the locking carrier.

How do I activate an eSIM?

Purchase a plan, receive a QR code, go to Settings - Mobile/Cellular - Add eSIM, and scan the QR code.

Can I keep my home number?

Yes. Most modern phones support dual SIM - home carrier for calls and travel eSIM for data.

Does eSIM work with 5G?

Yes. eSIM is network-generation agnostic and works with 4G LTE and 5G networks.

What is data deprioritization?

Deprioritized data gets lower network priority during congestion. Budget plans often use deprioritized data.

How much data for a week in Europe?

Casual use: 3-5GB. Light remote work: 5-10GB. Heavy remote work: 15GB+ or unlimited.

What happens if I factory reset?

Factory reset typically deletes all eSIM profiles. Contact your provider before resetting.

Is eSIM more secure?

Yes. eSIM profiles are cryptographically bound to your specific device, making SIM-swapping attacks harder.

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