Hello friends here I am sharing my personal experience with you and, I think this will help you a lot. I bought this watch last year and my experiences with this watch was not so good. I had purchase this at RS 5000 last year .In terms of compatibility it is quite not good and not compatible with all devices, it is only compatible with Samsung S3, S4, Note 2, Note 3, Note 4. it works on android and it also having features of reject and mute calls, Pre-defined SMS and take calls. speaker quality is not very good and also not clear. Width is of 40 mm, Height 47 mm, Thickness 9.9 mm and Weight is 200 g. And in terms of touch censor it is not quite good. Sometimes problems of hangs arise. touchscreen size is of 3.75 cm. And the major con for this watch at this price is that it is not water resistant. Pedometer working is not exact so this is also a major con of this type of watch. Only one speaker is present in it. Support MP3. Calls can be controlled by voice command but you have to practice on voice commands to control it.