Description

How fast can you react?  

FlipFast starts with your palm up and held steady.  After a random number of seconds your Pebble vibrates and a timer starts.  Flip your palm down as quickly as you can to stop the timer.  Your result, including reaction time, is shown on the watchface. Can you do better next time? 
 
With 5 selectable reaction speed test levels, anyone can be challenged.