1. Bluetooth connection: The smart watch connects to your iPhone or Android phone via Bluetooth to achieve data synchronization and communication functions. You can conveniently use your watch to receive incoming calls, message alerts, and social media notifications. 2. Fitness tracking function: The watch is equipped with a fitness tracker that can record your steps, activity distance, calories burned and other data. By analyzing this data, it helps you understand your exercise and set fitness goals. 3. Heart rate monitor: The watch has a built-in heart rate monitor that can monitor your heart rate changes in real time. Whether you are doing high-intensity exercise or daily activities, you can accurately understand your heart rate, control exercise intensity or adjust your lifestyle. 4. Blood oxygen monitor: The watch also has a blood oxygen monitoring function that can measure your blood oxygen saturation. This has important implications for people who pay close attention to their health, such as residents of high altitude areas or patients with respiratory diseases. 5. Sleep monitor: The watch provides sleep monitoring function and can analyze your sleep quality and sleeping habits. It can record your sleep duration, deep sleep and light sleep, and provide you with suggestions and guidance on improving your sleep.