F300 2.1-Inch Screen Smart Watch Supports Bluetooth CallsECGBlood Composition Analysis50+ Sports Modes Functions: 1. Important functions: ECG, blood composition (uric acid, blood lipids), body composition, SOS, HRV report, red light blood oxygen, fifth generation non-invasive blood sugar, scientific sleep monitoring, stress, MET 2. General functions: step counting, distance, calories, calls, voice assistant, heart rate, blood pressure, temperature test, breathing training, stopwatch, timer, calculator, time and date setting, mini-games, female menstrual period tracking, music playback, music control, remote photography, weather display, wrist-raising screen, mobile phone search (need to connect to APP), etc.; Call reminder (caller numbername), message notification reminder, alarm reminder, standard reminder, sedentary reminder, heart rate alarm reminder, etc. 3. Support mobile phone operating system: IOS 10.0 and above, Android 5.0 and above 4. Watch face configuration: 3 default watch faces + 1 watch face market watch face + 1 custom watch face, 7 menu styles 5. 52 sports modes 6. The APP supports 36 languages: English, Simplified Chinese, Traditional Chinese, Arabic, Bengali, Czech, Danish, German, Greek, Spanish, Persian, Finnish, French, Hindi, Croatian, Hungarian, Indonesian, Italian, Hebrew, Japanese, Korean, Lithuanian, Malay, Norwegian, Dutch, Polish, Portuguese, Romanian, Russian, Slovak, Swedish, Thai, Turkish, Ukrainian, Urdu, Vietnamese 7. Watch supports languages: Dial language: English, Chinese, Japanese; 8 countries: Simplified Chinese, Traditional Chinese, Japanese, English, German, French, Spanish, Thai 8. Watch push language: Chinese, Japanese, Korean, Latin, Cyrillic; Latin includes: (English, French, Spanish, Portuguese, German, Dutch, Vietnamese, Nordic, Central European, Southern European Italian, Southeast Asia, Africa); Cyrillic includes: (Russian, Eastern Europe, Asia), covering 150 countries Parameters: 1. Main control chip: JL7013A +64M FLASH 2. Gsencor sensor: STK8321-W 3. Heart r