Android Wear can switch to LTE, works without your smartphone
 

Your next (or first) Android wearable needs not for Bluetooth or Wifi. Android Wear's cellular support has finally arrived, just as the first compatible watch starts to ship. LG's Watch Urbane 2nd Edition crams an LTE radio beneath its circular 480...

http://www.engadget.com/2015/11/11/android-wear-lte/