Rainbuvvy F407 Smart Watch 2.1inch Square Screen Heart Rate Blood Pressure Sleep Monitoring Calorie Flashlight Health Tracker Sports Watch

Screen: 2.1-inch square screen IPS Round LCD 280*340 BT: BT 5.3 Battery capacity: 3.8V /380 mAh Usage time: Default function enabled: 10-12 days, fully enabled function: 5-7 days Charging method: magnetic charging cable Charging time: about 2 hours Meter head: 56.19*43.02mm, thickness: 13.4mm (including heart rate) Whole machine: 275*39.4mm (strap flattened) Functions: step counting, distance, calories, BT calls, heart rate, blood pressure, body temperature testing, stress, breathing training, music playback, stopwatch, timer, calculator, flashlight, mini games, female menstrual period tracking, raising the wrist to light up the screen, remote control Take photos, call reminders, message reminders, alarm clock reminders, sedentary reminders, etc.