eSIM question (4G smartwatches)

[rubberduck]

If I have a smartwatch that supports 4G via eSIM, does my mobile phone also need to support eSIM or can the two devices coexist with the phone using a traditional physical SIM card and the smartwatch using its eSIM?

Thanks

 

[rubberduck]

They're two separate devices, so it doesn't matter what type of SIM the phone is using. Treat the watch as another phone, just need to make sure your network supports eSIM.

Thanks, that's what I thought, was just checking as will need to move provider because current one (Sky) does not support eSIM

 

[rubberduck]

And to make it worse, not all carriers support all watches.

Yes, am finding it difficult to tell if a provider will support my watch. From what I can tell EE, Vodafone, 3,and O2 all support eSIM but am unable to get details if they support galaxywatch 4. I could also do with WiFi calling on my phone Galaxy S20 FE which adds extra complexity. Tried customer services but they are not helpful so far.