The Android Wear 2.0 - powered timepiece has cellular capabilities via a nanoSIM card, which will allow the watch to work free from a connected smartphone.
The power transfer capabilities could be made via wireless communications link, including cellular between 700 MHz to 2700 MHz, Wi - Fi operating at 2.4 GHz, 5 GHz and millimeter wave communications between 10 GHz and 400 GHz.