Main Features: Phone book, message sync With independent SIM card slot to achieve phone functions, the smart watch can sync your contacts and message 1.3 inch touch screen 1.3 inch IPS touch screen, very hard and anti-scratch, the combination of high quality and fashion Sleep monitor Can effectively monitor your sleep quality, including your sleep times and sleeping depth, which helps you to develop a healthy lifestyle Pedometer The smart watch can record your steps, distance and calorie consumption to get enough exercise at the same time to avoid overexertion Sedentary reminder Prolonged sitting is a common problem for office worker groups. Wearing this smart watch, it can be set a period time to remind you to take a break for relaxing your body Compatible OS: support iOS and Android OS Note: please note that some functions cannot support iOS for now Brand: KingWear Type: Watch Phone CPU: MTK2502 RAM: 64MB ROM: 128MB External Memory: TF card up to 16GB (not included) Compatible OS: Android,IOS Wireless Connectivity: Bluetooth,GSM Network type: GSM Frequency: GSM850/900/1800/1900MHz Bluetooth Version: V4.0 Screen type: Capacitive,IPS Screen size: 1.3 inch Screen resolution: 240 x 240 Camera type: No camera SIM Card Slot: Single SIM Picture format: JPEG,PNG Music format: MP3 Video format: MP4 Languages: English, French, Spanish, Russian, German, Italian, Portuguese Additional Features: 2G,Alarm,Bluetooth,Calendar,MP3,People,Waterproof Functions: Anti-lost alert,Heart rate measurement,Message,Pedometer,Remote Camera,Sedentary reminder,Sleep monitoring Smartwatch Phone: 1 Battery: 340mAh Built-in USB Cable: 1 English Manual : 1 Product size: 30.00 x 4.50 x 1.39 cm / 11.81 x 1.77 x 0.55 inches Package size: 12.00 x 12.00 x 9.00 cm / 4.72 x 4.72 x 3.54 inches Package weight: 0.250 kg