5 stars: I use this combined with a well made but inexpensive watch. I used to use gear compatible with my Samsung phone but they broke after a few months. The app shares data with Google fit app which is all I need. It would be great if it shared with samsung health but not necessary.
5 stars: Pretty reliable app and functional. Syncs easily with phone. For sleep, using the magnetic strap, I strap it to my shin since I cannot sleep with a watch on my wrist. Works great.
4 stars: PROS - It does what it says it does :) - The application actually looks nice and is easy to use; CONS - I sometimes have to restart my phone in order for the stats to update; - Sleep schedule is not adjustable to my own so the stats are always false since I wakeup pass the limit time; *** - I would like to be able to track more things like body measurements (not just weight and height);
4 stars: I'm giving this 4 stars because I know it has room for improvement. I love the long battery life. My only problem is how it synchronizes with Goggle fit. Its not constant--some days it tracks my heart rate but does not sync my steps done in the whole day. Sometimes it does not sync my activities and I need to manually enter them into my Google fit. I hope you can fix the sync feature!
2 stars: I've had the watch for awhile and as soon as I charge it up it doesn't work. I have to unbind and sometimes the blue tooth doesn't find it and even when it does that makes no difference. I get it working...