VELL-TECH Smart Watch with 1.3 inch full disc screen Smart Watches with 52*44*12mm in size (Capacitive Touch Screen, NANO Toughened Glass Screen, and having MTK2502C processor with Watch Casing of Stainless steel and Watch Band of TPU material. Connectivity: The Smart Watch can be connected with the Bluetooth mode as well as SIM card. Compatibility: The Watch can be connected with Smart Phones operated by Android & IOS (phone). Other features: Calls, Contacts, Bluetooth Camera, Pedometer, Sedentary remainder, App download, Notifications, Camera, Video Camera, Video player, Alarm, Calculator, Stopwatch, Thermometer. Motion Sensor, Anti-lost, Thermometer, UV intensity measurement. Health Monitoring: Get Pedometer and sleep monitoring to regulate your health accordingly as per the device notifications. Notifications: Get notified with your Smart Phone notifications on wrist Smart Watch and don't ever miss your important events. Memory: 128 MB + 32 MB Main Screen: Display resolution of 52*44*12 mm and screen size of 240*240 pixels with NANO toughened Glass Screen in order to make it safer and dust free. Talk time: 3 hours Stand by Time: 180 hours Battery: 380 mAh Multi Skins: Works on multi skins for watch display and for notifications. Working Modes: Operates on both the modes SIM as well as Bluetooth modes. Performance: Enjoy with features continuously for 3 hours with battery power having 380 mAh capacities. Phone Book & SMS: Estar V9 has 500 capacities of phonebook & 100 SMS capacity. Power Connectivity: Connect to your smartphone using USB Power Supply.