north edge mens gps smartwatch heart rate multi sports waterproof dive 50m altimeter barometer compass gps watch for android ios, Slivery;brown

product features:
1.gps, glonass, beidou
2.diving depth measurement
3.full touch operation
4.dynamic heart rate 5. built-in multi-satellite positioning reception system
6.instant altitude
7.instantaneous air pressure
8.ambient temperature 9.compass
10.real-time diving depth
11.50m waterproof
12.instant latitude and longitude 13.abdominal rhythm
14.mobile messaging data
15.analysis of multiple motion modes 16.outdoor track record
17,bright screen
18.low power consumption.syi