Meet the Unlock Ring: a short range smart ring that lets you unlock and access your smartphone or tablet more conveniently. Since it has a range of 6 inches, you don’t have to deal with security issues of similar wearables. Unlock is compatible with Windows and Android devices at this time.
Unlock is made using flexible materials. It uses Bluetooth 4.2. The battery life lasts over a year. More information is available on Indiegogo.