Japanese electronics maker Casio has manufactured a new watch named G-Shock Bluetooth Low Energy Smart Watch that provides email and call alerts with telling the time. You can get these benefits by synchronizing this watch with your iPhone.
It also features notifications of calendar alerts, weather and stock etc. By just double tapping on the screen one can silence all these vibrating notifications.
It unique feature notifies you when your iPhone is out of range by its built-in system. It does not consume much energy even with these capabilities as runs on a trendy button-cell battery.
Casio is not the only company to make smartphone connected watch; Sony LiveView Android 2.0 apps from Android market can also feature this.