For Pairing, turn off the Bluetooth in phone and turn On again, its recognize and pairs in moment. This works fine with me. We have purchased these exact shoes several times! Would definitely buy these again and the bottoms are thick so great for even walking out to get the mail :). The actual strap it self. After a couple hours "low battery, battery off"Scam if others have same experience. Other then that, they are pretty good. The faux leather pads feel very smooth and comfortable. But they have separated again on first day wearing them. Altra chicca per i possessori dei vecchi modelli è che le impostazioni vengono importate sul nuovo dispositivo, una volta connesso all’app Mi Fit.