Aluminum alloy material is scratch-resistant and wear-resistant Health monitor: Steps, distance, calories, photo taking, blood pressure, and heart rate(24-hour heart rate detection) 50M (5ATM) waterproof-support swimming Body temperature-female physiological reminder. Support IP synchronization health record.  Aluminum alloy material is scratch-resistant and wear-resistant Health monitor: Steps, distance, calories, photo taking, blood pressure, and heart rate(24-hour heart rate detection) 50M (5ATM) waterproof-support swimming Body temperature-female physiological reminder.  Support IP synchronization health record  Supports handheld control function Heart rate real-time detection