Battery Detachable:No Movement Type:Electronic CPU Model:NRF51822 (CORTEX MO 16 MHZ) Function:Passometer,Sleep Tracker,Push Message,Heart Rate Tracker,Alarm Clock,Remote Control,Fitness Tracker,Answer Call,Message Reminder,Week,Call Reminder Case Material:Alloy Language:Russian,Portuguese,Spanish,English,Italian,Japanese Style:Sport APP Download Available:Yes Type:On Wrist Mechanism:Yes SIM Card Available:No ROM:<128MB Rear Camera:None RAM:<128MB Band Detachable:No Screen Shape:Square Resolution:0.96 inch OLED 96 * 32DOTS Application Age Group:Adult Network Mode:None Multiple Dials:No System:None Band Material:Silicone Waterproof Grade:Professional Waterproof Battery Capacity:<120mAh CPU Manufacturer:Mediatek Screen Size:0.96 inch OLED 96 * 32DOTS Compatibility:All Compatible Compatible With:Android and IOS phone Features and specifications: Q8 Smart Watch IP68 waterproof Features: * Main chip: NRF51822 (CORTEX MO 16 MHZ) * Bluetooth version: 4.0BLE (low power) * 0.96 inch OLED 96 x 32 P large display * Waterproof: IP68 (30 meters deep waterproof) * 24 hours real time heart rate monitoring, green light heart rate sensor * Built-in 70 mAh polymer battery, standby 7-10 days, use 4 days, charging 60 minutes * For IOS7.1 and Android 4.4 and above * More functions: multi-motion mode (running, swiming, basketball), step, distance, calorie, sleep management, exercise target management, flip screen, sedentary reminder, screen brightness, call/message reminder, WeChat / SMS / QQ message vibration + text display, alarm clock