A real game changer like the watches Samsung has been making for years that already do these things?
Developing for the Samsung Gear S2 was one of the most frustrating experiences in my life. Tizen is a trainwreck.
There are no games being changed with that platform.
http://www.samsung.com/us/support/answer/ANS00037221/
The Gear S2 3G has an eSIM for 3G. No phone required.
Many Chinese Android watches have offered direct cell connectivity for a couple of years now, as does the LG Watch Urbane 2nd Ed LTE ( Android Wear ).
Was pretty cool to be able to leave your phone at home and still have full 3g coverage, especially when out running/cycling/surfing. Opera mini browser was sufficient for looking things up on the go.
Like others have mentioned, Tizen is a hot mess though. In the end the lack of a spotify app was the main pain point for me. Apple will do well to fill that gap.