[Fitness, Heart Rate and Sleep Tracking]: The Reward RDS74003 fitness smartwatch's precise optical heart rate monitoring allows you to accurately track your steps in real time, monitor heart rate, distance, calories burned, sleep quality and all-day sleep plan [1.28 inch round color touch screen]: Reward RDS74003 features a stylish and personalized high-resolution 1.28 inch round screen that can hold More Info [240mAh Long-Lasting Battery]: Our smart watch can deeply optimize component power consumption to achieve 7-day durability while maintaining a slim body to avoid frequent charging Bluetooth Music Control: Bluetooth music control allows you to control music directly from your smartwatch during exercise without having to unplug your phone [Duration IP67 waterproof life]: Support ip67 waterproof [Accurate exercise tracking] Support multiple exercise modes (walking, spinning, running, yoga, hiking, climbing, treadmill, cycling, exercise), recording your exercise on the app and connection to your smartphone's GPS can be accurate Measure your pace, calories and distance, and set and reach your daily activity goals. [Smart Watches for iPhone and Android Phones] Compatible with most iOS 8.0 and Android 5.0 and above smartphones (not for PC, iPad or tablet), for information reminders (call reminders, SMS, Facebook, Twitter, Youtube, Instagram, email, etc.) apps), support iPhone, Samsung, Huawei, Xiaomi, OnePlus, etc. Bluetooth version: Bluetooth 5.0 Waterproof rating: IP67 Screen size: 1.28 inch Screen type: IPS high-definition color touch screen Resolution: 240*240p Compatible OS: Android and iOS Compatibility: Android 5.0 / iOS 9.0 and above System languages: Simplified Chinese, Traditional Chinese, English, Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Portuguese, Spanish, Arabic, Korean, Dutch, Indonesian. APP language: Simplified Chinese, Traditional Chinese, English, Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Portuguese, Spanish, Arabic, Korean. Push message language: Simplified Chinese, Traditional Chinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Polish, Russian, Dutch, Turkish, Indonesian, Czech. Sensors: heart rate sensor, proximity sensor, accelerometer. Battery type: polymer lithium battery Battery capacity: 240mAh Standby time: 15 days (power saving program); 7 days (typical usage scenarios) Charging time: about 1.5 hours