M3 mart band blood pre ure monitoring wri tband ip67 water re i tance multi port mode tracking remindering for home outdoor

Description

Screen type TFT Bluetooth 4 0BLE low power con umption Battery type polymer lithium battery Battery capacity 105mAh Charging time about 2H Life time 5 10 day 20 30 day tandby Data torage 7 day of hi tory data of bracelet 7 day of data retention APP Control method ingle touch Appearance material Front ca e PC Back ca e ABS PC Wri t trap Eco friendly TPE Compatible y tem Android 4 4 and above iOS 8 0 and above