The G-Shock GB6900AA, and it uses Bluetooth to connect with an iPhone 4S or iPhone 5. It doesnt have an E-Ink display or a touch screen like some other smart watches, but it can notify the user of incoming calls and e-mails with a beep or a vibration.
The G-Shock can also locate your phone by remotely triggering a ringtone, and it can prevent you from losing your phone by vibrating when the Bluetooth connection drops out of range. For world travelers, the G-Shock uses its smartphone connection to keep time information up date with no need for manual adjustment. The watch is shock resistant and water resistant up to 200 meters, and its battery should last two years with 12 hours of connectivity per day.
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