The 37-degree bracelet works well, unlike the products of a start-up team, and even more exquisite than mi band. The main part of the bracelet is detachable, the plastic body is bent into an arc according to the shape of the arm, the surface is covered with a layer of metal, and the surface is designed as a textured dot pattern, and the only indicator light on the outside of the bracelet is hidden inside.
The back of the fuselage of the 37-degree light bracelet is made of black frosted plastic, and its arc design can be clearly seen on the side, which is more in line with the arc of the human wrist, and there is a charging base bayonet on the side. Right in the middle of the back is an optical heart rate sensor the size of a nail, and above the sensor is a charging contact.