I am using this watch from 2 year and I loved it .
1) The battery life of this watch is amazing.( 2days)
2) The display of this watch is also amazing.
3) The feature custom wallpaper I am loving it.
4) Colour and design of this watch is really amazing.
5) The app called onetouch move is used for this watch. And it shows your heartbeats, total steps, Calouries burn and also many more features.
X) If the app is open then your watch is connected otherwise it will disconnet with your phone . Thats why I phase so many problem because I am not enable to open the app the whole time. So , I am never know who is calling me without seeing I my phone.
X) It is changed with its own strap . And after 2 years the strap stop charging and I am not able to find tha replacement of the strap.