UM91 Smart Watch Bluetooth Blood Pressure Heart Rate IP67 Waterproof
product type Ultra-thin round screen1.28inch Wristband size 220MM*22MM Dimensions 46.2*46.2MM*11.7MM Machine weight 62.9G Display Display size 1.28 Resolution 240*240 battery size 452228 capacity 230MAH Cover Tempered glass body Zinc alloy(IP plating) Strap Silicone strap Strap color black Standby time 5-7days usage time 2-3days Charging time 2h CPU1 BLE GR5515 CPU2 BT CW6693 Heart rate PPG PD70-01C-TR7 supports 24-hour real-time heart rate, ECG not support body temperature