Clearly a samsung issue.
Once the esim is programmed, it keeps its settings even when you choose to pair with a different phone. So after loading with the iphone you can switch back to your samsung phone.
When your phone goes out of range on bluetooth, the watch switches on 4g (after a minute or 2) and can then act as a phone and use data independently. When back near the phone it reverts to BT.
I've only just found this thread when googling in desperation!
What I've not seen mentioned on this thread is mismatched serial numbers. I have had 2 of these watches and both of them had different serial numbers on the box than on the watch themselves. However the IMEI & EID did match the box on both watches.
Anyone notice this?
I've spent hours on the phone with Samsung and not one knew about the issue & their attitude was return it or lump it. I've returned one & bought a second which has the identical issues as the first.
Today I've spent hours dealing with Vodafone, they at least have heard of the issue! Plus they have put serious effort in attempting to help. They've now asked me to wait 2hrs and then restart the phone & watch and they will call me back tomorrow. Not sure I'm holding out much hope!
I don't have a iPhone to try the above suggestion but my brother & his family of iPhone are visiting in a weeks time so I will try sweet talk one of them if I'm still having an issue.
It's aggravating to say the least.