Our sports smartwatches focus on your heart health and respiratory health, understand your daily fitness levels and create a healthier lifestyle. Main Functions: Innovative Smart Technologies: 1. Fitness Tracker with Color Screen: Newest HD IPS color screen, comfortable and replaceable soft silicone band. 2. Innovative Smart Activity Tracker: Monitors Your Blood Pressure, Heart Rate. 3. Updated Sleep tracker & OSA Monitoring: Automatically Monitor and Analyze Sleep Quality, Automatic record of your deep sleep, light sleep, and REM sleep stage at night, even a short sleep during the day. 4. GPS Sports Watch: Connect smart phone's GPS to show the route in the app. 5. A Nice Gift for men, women and kids. 6. Additional Features:Time Sync, Multiple sports, Weather, Gesture wakeup, Sleep monitoring, Timer, Find phone, Coming call/SMS reminder, Notification push, Hear rate monitoring, Blood oxygen detection, Remote music control, DIY watch face, Remote upgrade, Data sync, Etc.