HAVIT M91 Professional Swimming Smart Watch with 5ATM Water Proof Level

Swimming Smart Watch
Supports indoor and outdoor swimming modes,with a built-in 9-axis gravity sensor,it can accurately 
calculate the swimming distance,stroke style,stroke times,and SWOLF.

18 Sports Modes
18 sport modes built-in running, pool swimming,outdoor swimming,aerobics ,dancing ,yoga and a total of 18 
sports modes,you can also be an athlete.

Automatically Adjust Brightness
The brightness of the watch will be automatically adjusted to the lowest level after 10 o'clock in the evening 
to protect your eyes.

9-AXIS Gravity Sensor
A more powerful 9-axis gravity sensor,in addition to the functions of counting steps and calories,it also gives 
the watch the function of a compass,and can measure more professional parameters such as your swimming style.

New Blood Oxygen Red Light Sensor
The absorption rate of red light by hemoglobin will be higher. The Blood oxygen data calculated by the watch 
is more accurate by the difference between the red light emitted and the reflected red light.

Precise Red Light Blood Oxygen
Blood oxygen saturation is one of the characteristics of human health.when you work mentally for a long 
time or exercise with high intensity,you can measure the current blood oxygen value and control your health 
in your own hands.