About products and suppliers:
Tradechina.com offers 4073 heart rate ring products. About 16% % of these are smart ring, 9%% are activity & fitness trackers, and 1%% are house-service detector tester.
A wide variety of heart rate ring options are available to you, You can also choose from touch screen, app control and ip67 waterproof heart rate ring,As well as from 320x240, 128x128 heart rate ring.And whether heart rate ring is unisex, men, or {3}.
There are 4073 heart rate ring suppliers, mainly located in Asia. , and