A smartwatch is a computerized wristband, it has features beyond time keeping. Some smart watch can run mobile apps, play music, play videos and play Fm Radio.
These watches comes with camera, gps tracking capabilities, wifi capabilities ,cell phone, touch screen and much more. Some of the popular brands of smart watch are:
Sony SmartWatch
OS: Android Screen: 1.3 OLED, 128 x 128 Storage: None Connectivity: Bluetooth 3.0 Weight: 15.5 g main unit, 26 g watchband Battery: Undisclosed, lasts a few days with normal usage
Motorola MotoACTV
Size: 46 x 46 x 9.6 mm Weight: 35g Display: 1.6-inch Trasflective TFT, QCIF+ 176x220 (optimized for Indoor/Outdoor) Supported Audio Formats: AAC, AAC+, MP3 System Memory: 256MB Storage: 8GB capacity (16GB also available) Connectivity: 3.5mm Headset, USB 2.0 HS Bluetooth: Stereo Bluetooth Class 1.5 Sensors: ANT+, BLE, Accelerometer WLAN: 802.11 b/g/n Location: GPS+ Battery: 258 mAh Standby Time: 325 hours Playback Time: 20 hours Workout Time: 10 hours indoor, 5 hours outdoor
WIMM One Watch
Product dimensions: 1.3 x 0.5 x 1.4 inches Wifi Bluetooth USB Connection Audible and Tacticle alerts Accelerometer Magnetometer Bi-Modal Display Capacitive Touch Screen Up to 32GB memory Splash Resistant 22G Charges via USB or paddle
MetaWatch
Handset compatibility: iPhone 4s, iPad (3), Android (various) Sensor compatibility: Initially, Wahoo Fitness BLE sensors for iPhone 4s iOS compatibility: iOS 5 (basic functionality), iOS 6 (enhanced functionality) Double injection molded PU, co-molded with PC body Mineral hardened glass lens with anti-glare coating Titanium finished stainless steel top ring 5 ATM water resistant (you can swim with it, but no diving) 96x96 mirror polymer network display Vibrating alerts 6 buttons Rechargeable (5-7 day battery life) Dual Mode Bluetooth 4.0** 3 Axis accelerometer / ambient light sensor