Everything is getting Bluetooth nowadays, and that includes your insoles. At CES 2015, we walked around on a pair of Bluetooth-connected insoles that can heat your feet, track your steps, and tell you how many calories you burned.

Read the full article: http://www.theverge.com/2015/1/6/7506477/digitsole-bluetooth-insole-foot-warmer-step-tracker-ces-2015