The Sony Smartwatch 2 doesn't attempt to do as much as the recently-announced Galaxy Gear, but it's a sleeker and more focused beast as a result.
Shorn of the need to speak to your wrist, the Smartwatch 2 instead becomes a companion to smartphones running Android 4.0 and above, offering more basic functionality.
It looks far more like a watch than the Samsung version for one simple reason: it doesn't have to turn off. The power key on the side is there for when you want to fire the display up a notch, but in general standby mode the display will revert to a low-power clock face.
Source: techradar http://www.techradar.com/au/reviews/gadgets/sony-smartwatch-2-1161409/review