Model No.: R13 PRO

Water proof：IP67  waterproof （ IP68 can optional）

PCBA Specification：Comments

Product Type / Material：Smart watch/Metal for Main body, silicone for belt with touch feeling oil

Chipset No.：NRF52832

Memory Specification：Comments

Internal Memory for storage (ROM+RAM)： 64KB+512KB & add another flash: 4M Byte

Max External Memory Support (T Flash) (GB)：N/A

Display：Comments

LCD style：IPS

Resolution ：240*240

Screen Size ：1.22inches Colorful LCD

Touch Panel：Single touch

Antenna：Comments

BT Antenna ：YES

Sensors：Comments（model no.)

G-Sensor： BOSCH BMA421 

Bluetooth：Comments

Version：BT4.1

Battery Type：polymer

Battery Capacity：110mAh

Health：Comments（model NO.)

Heart rate：HRS3300 Real time dynamic heart rate

Blood pressure：YES，by software 

Blood oxygen：YES, by software 

smart watch