Ring Module

3469 ring module products are offered for sale by suppliers on Alibaba.com, of which smart rings accounts for 1%, seals accounts for 1%. A wide variety of ring module options are available to you, such as wifi, app control and dual sim card.You can also choose from sleep tracker, alarm clock and heart rate ring module,as well as from black, white, and blue ring module, and whether ring module is abs, plastic, or metal.