Did a lot of research into activity bands at the lower price point and came across this watch - wow, what fantastic value this is!
Ok, a few quick points; * The band has only ever once "snapped" open off of me - some people say they have issues with the band but, I really have not to date. * The battery lasts a super long time on this against some of the bigger brands and more expensive options (GPS aside). * The GPS is not at all bad on this, sometimes takes a min to fix at start but, then fairly decent and I've had over 150mins run time (actually I was walking but, you get my point). This feature is not normally found on watches within this price point. You don't need to sync to your mobile while exercising. * The app has plenty enough on it to get you started and the sleep info is very interesting/detailed. You can share info with Google Fit but, not some of the main other apps as mentioned by others. So what? If you were into that, you would most likely buy a "name" for 3 or 4 times more than this and get a lesser watch IMHO. * It gives very basic swim info if used for that and I would suggest that if a primary use is for the pool, maybe this is not the watch for you.
I paid £46 for this and very happy with it and the functions/battery life. The GPS is a real bonus and the supporting app gives me everything I need with great sleep data and feedback.