1. Main screen: 1.69 inch 2.5D high-definition capacitive touch screen, resolution 240*285; IP68 waterproof 2. CPU: Goodix 5515; Memory: RAM256KB+ROM128Mb 2. Bluetooth 5.0, connected via Da Fit APP, does not support phone call 3. Battery: 220mAh (using 5 days ), weight: 36.5g 4. Support 13 languages (English, Russian, Arabic, Vietnamese, Thai, Polish, Spanish, Malay, Greek, French, Italian, German, Chinese) 5. Multiple dials for choose; other functions: alarm clock, stopwatch, information reminder(call/message/WeChat/QQ/Whats App/ Facebook/Line/Twitter ) etc. 6. Support heart rate detection, exercise step counting, sedentary reminder, sleep monitoring, control mobile phone to take pictures, etc. 7, 8 sports modes (walking, running, skipping rope, cycling, badminton, yoga, mountain climbing, sit-ups) 8,with 1 charging cable"