I have an Android GTS AD721 smartwatch (Android is the company btw they are a watch manufacturer), a Sony Smartwatch 2 and a Cogito Classic smartwatch.
I think the cogito classic is really nice bit of kit if you don't want a full on smartwatch, and I really love the Sony SW2, although I don't like that there isn't a mic or speaker on it. The Android GTS is nice, just with lots of missed opportunities - they request a crap load of permission, but never do anything useful with them.. like displaying a static calender, but not importing meetings; Requesting email access but not allowing you to do anything on the watch with them (you can't even see them). It is nice to use as a mic/speaker combo though, and seeing texts messages/calls.. but the name integration is limited to calls.. but that doesn't bizarrely extend to sms messages lol. Not really sure what the hell they were thinking lol.