set it up for the 1st time be a pain because the instruction be vague . after three day of trial and error , finally get it to work the way I want it to . especially have a problem get it to show you walk speed in mph . only find that by accident . once it be up and run , be very impressed ! like it so much that I be buy one for my wife . especially like the Google map feature . at the start of the walk , it actually show the distance walk in foot until it switch to fraction of a mile . walk speed in mph be also extremely accurate . overall , the watch have far exceed my expectation ! : - -rrb-