i am on three and i do not thing they will have lte on a watch any time soon....
also i keep the phone with me all times really
does having an lte over normal gps have benefit?
what option would you go for?
You don't say what country you are in but I'm in the UK and was on Three and I switched to EE mainly to enable cellular on my SS Series 3. I did a little check on the unlimited data I had and what I was actually using and EE looked OK with equivalent roaming for the sim only contract and I got the bonus of getting visual voicemail back which I really missed with Three after leaving O2.
In the UK EE is the ONLY carrier that has the channels that the AW3 Cellular supports so it's down completely to infrastructure at the moment rather than any supporting system implementation that they would need to do.
TBH it's a bit of a gimmick for me - I intentionally go out for walks leaving everything behind but the Watch and my BeatsX and love the music/streaming.
I possibly will also leave the phone in the car when I'm wading and going fly fishing too which is my second use case, although I do have an iPhone 7 which should be able to handle a dunk if I trip.
I ended up going for Cellular because I wanted steel again (I had the S0 SS).. maybe I would have gone for a non Cellular version if they made it in SS but it would probably have been so close in price I would have gone for the Cellular version anyway.