Product Parameters:

CPU:FR8016HA.
Bluetooth Version:BLE 5.0.
Battery capacity:28mAh.
Stanby Time:About 45days.
Working Time:About 3-5days.
Charing time:0.5H.
G Sensor:msa310.
Heart Rate Sensor:HX3605.
Magnet Cable(With SMT Protect IC).
Waterproof Level:IP68.
Charging Requirement:Charging 1A or less.
APP:JSRing.
system requirements:android5.0+ / ios10.0+.

Size:

17#--17mm(Inner diameter circumference 53.4mm)

20#--20mm(Inner diameter circumference 62.8mm)

22#--22mm(Inner diameter circumference 69mm)

Main Function:

Heart rate measurement.
Oximetry.
Blood pressure measurement.
Sleep monitoring.
Step Count.
Calories.
"Temperature measurement. (Skin temperature measurement)"
16 Languages.

APP supports languages

English (default), Arabic, Czech, Danish, German, Spanish, Persian, French, Italian, Japanese, Dutch, Portuguese, Romanian, Russian, Turkish, Chinese (Simplified).