describe: Heart rate and blood pressure: accurately track your heart rate throughout the day, estimate the maximum oxygen uptake, recall and provide health data. 24-hour continuous blood pressure detection, long-term wear and tear can collect accumulated blood pressure data, providing a baseline for assessing physical conditions. 24-hour activity tracker: This powerful fitness tracker can record all-day activities such as steps, distance, calories, minutes of activity and sleep status. The bracelet dial is detachable, showing an elegant personality. You can freely change the bracelet that suits you. The silicone material fits the skin better and is more comfortable. IP68 waterproof, daily waterproof. Please do not wear this watch while diving. Also avoid using it in extremely hot or cold temperatures. dust-proof. Multifunction: 1. Sleep monitoring. 2. Blood pressure. 3. Dynamic heart rate. 4. Anti-lost. 5. Blood oxygenation. 6. Call reminder. 7. Lift up to wake up. 8. Shake to take a photo. 9. IP68 waterproof. 10. Message reminder 11. Alarm clock 12. A reminder of a sedentary lifestyle. Sleep monitor: Use heart rate monitoring to help you understand the quality of sleep. Provide wake-up time, sleep time, light and deep sleep, sleep quality, and analyze your sleep.