Features: Built-in 28nm GPS global positioning, receive satellite GPS signal. 1.39 Inch Super AMOLED Display capacitive multi-touch with 400* 400 pixel, large and clear to see. Android 7.0, advanced CPU MTK6737 Quad core 1.1GHz, quick data processing. ROM 16GB and RAM 1GB. 5.0 MP camera, clear to take photos. 580mAh Meer power. Compatible for iOS & Android, BT 4.0 it can connect with a phone to synchronize information. Support WiFi 802.11b/g/n connection, convenient for you to get web. One-key entry into 9 exercise modes. Built-in multiple motion sensors, monitoring your exercise status in real time. Other Functions: Dial, Message, Heart Rate Monitoring, Pedometer (Steps, Calorie, Distance), Camera, Remote Control Camera, Music, Alarm, Calendar, Browser, Mobile Phone Anti-lost, Map etc.