Hi, I would like to buy an Apple Watch and connect it to the iPhone (with the ESIM inside the iPhone, my main one). so far everything is easy. then I would like to install a secondary esim (other numbering) in the applewatch so as to only use the applewatch on the weekend: it's possible ?
[Edited by Moderator]
Original Title: Hi, I would like to buy an Apple Watch and connect it to the iPhone
iPhone 15, iOS 18
You plan sounds interesting but that is not how Apple Watch works. However, at a practical level you can still achieve the same result. Considering only the cellular version of Apple Watch, explanation below.
Provided your network has setup the account correctly the eSIM in a cellular Apple Watch always mirrors the phone number of the paired iPhone. The watch will actually be configured with its own eSIM and phone number but this is only used internally by the cellular network for call routing and administration. By cellular smoke and mirrors calls to your iPhone will also be pushed to your Apple Watch, and calls made from your watch will appear to come from your iPhone's number. This is always true, 24/7 365 days a year regardless where your iPhone is, and regardless whether the iPhone is switched on or not.
This means your cellular Apple Watch will behave rather like a traditional "extension phone". If you are carrying the phone you can use either the watch or the phone to make calls. If you are away from the phone just use the watch, there is no need for a different number.
The secondary eSim has to be installed on the iPhone as well, and you can change the eSim to be used on the watch.
Have a look at the related article:
Use Dual SIM with Apple Watch GPS + Cellular models - Apple Support
How do I use secondary eSIM on Apple Watch after connecting to iPhone?
