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I don't do a lot with games on my watch either, but I do have Papercraft on it. It is entertaining in a pinch and the kids enjoy it as well.
Starting strava and stopping strava whilst my phones in my bag.
I don't miss any important messages or phone calls as the watch vibrate as I usually dont feel or hear my phone at work.
Playing Papercraft on the subway where there is no Cellular/WiFi
I also pair my headphones to my watch and listen to music from it.
and tonight I used it to get directions to a place I haven't been without having to stop and dig out my phone.
Im glad I own this watch.
Papercraft is fun.