Summary: Bought this product a few months ago for hiking and biking. I've been out several times in the past few weeks with it. When it works properly it's a nice unit to measure distance, pace,elavtion,navigation and training tool. However it rarely held the GPS signal. Some times starting out it would have great signal and 10 mins. into hike you would lose it. Sometimes it would come back but most of the time it wouldn't.