Can you use an eSIM on Apple Watch?

Check whether your watch is GPS + Cellular

A GPS-only Apple Watch can connect through its paired iPhone or a compatible Wi-Fi network. To connect directly to a mobile network, you need a GPS + Cellular watch and a supported watch plan.

On the paired iPhone, open Watch → My Watch → General → About. Tap Model Number to reveal the A-number and match it to Apple’s model list. For example, A2997 is a GPS-only 42 mm Series 10. A3001 is a cellular 42 mm Series 10.

Activate your own watch

For a watch paired to your own iPhone, Apple requires the same carrier on both devices and an eligible iPhone plan. Ask your carrier if your account supports an Apple Watch line. Set it up while connected to your carrier’s network.

On the iPhone, open Watch → My Watch → Cellular → Set Up Cellular. Follow the carrier’s sign-in and activation steps. A QR code sold for phone data does not by itself activate a watch line.

Set up a watch for a family member

Apple Watch For Your Kids lets an organizer or parent set up a family member’s cellular watch from their iPhone. Choose Set Up for a Family Member in the Watch app. The watch can have its own number and a different carrier.

Check Apple’s separate list of carriers for family setup in your country. Some features work without a cellular plan. For service away from the iPhone and Wi-Fi, the provider must support this setup.

Check roaming before you travel

Apple lists international roaming on cellular Series 5 or later, SE and Ultra models with watchOS 9.1 or later. Your carrier must support watch roaming and VoLTE at the destination. Check coverage and charges specifically for the watch.

Apple does not offer international roaming for a watch set up with Apple Watch For Your Kids. If someone offers a travel plan for your watch, confirm the exact model, setup type, destination and activation method with that provider before purchase.

Sources you can check.

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