Perhaps when you buy an eSIM iD plan for your Apple watch, @Nico Kearns.

https://www.idmobile.co.uk/sim-only-deals 

Hi @Nico Kearns 

Unfortunately at this time we do not officially support usage of an eSIM in an Apple Watch, sorry.

Tom

Is this something ID mobile are looking to be able to provide? 

I was an id customer for years. Left due to esim. Then i leave and they bring out esim lol. But just esim. Not data version we need for watches so im ok. But im hoping to come back as soon as its available. My mrs contract has ended and told her to use id as i will be back one day also. But this one missing feature is a killer. Such a shame. Loved being a customer here. Soon as its available. Let me know. We will both join up. 

Hi there @Arnis65, this is certainly something we may look to offer in the future, but unfortunately, I haven’t got a definitive answer to give you on this I’m afraid or any guarantee or time-frame regarding this.

We’re always looking to improve, and it’s certainly a feature we’re aware of, so it’s definitely a possibility in the near-future I’m sure.

@RFGrinch, we’d of course welcome you back anytime with open arms!

Kind regards,

Tyler