Tap center of hands to make them temporarily disappear. TAP 12 OCLOCK to unlock and relock watch. TAP 8 and 10 Ucolor. Tap weather for update. Tap altitude for feet or meters.Tap 9 oclock- To cycle through 4 levels of additional dark filters. Good for when display is too bright in a dark setting. 4th Tap is complete darkness Theater Mode. -Tap 6 oclock for ambient options