I got this watch from amazon.in two months ago. I thought it to be a good smartwatch like that of moto 360 or samsung gear. But if you are looking for such a watch, please notice, it is much different from them.
The user interface of the watch is just like any chinese phone. Also when I tried connecting it to my phone, only then I realised that the watch connects with some phones and not with all.
As it was stated in the manual, the watch can be connected to smarphone using an android application via bluetooth, so I installed that app. But even the functionality is very limited, like calls and messages.
I used an airtel sim in the watch. It worked, but the call quality is again like any chinese phone.
The overall idea is good, but the quality is very poor. I regret having wasted my pocket money on this watch.