I purchased this watch for the elevation and HR functions primarily, as I like to backpack in the Rocky Mountains and often am above 10,000 feet. I find it to be quite accurate as the HR goes and acceptable when measuring altitude. One issue I notice is that the face scratches easily, which is dumb because this watch is meant to be outdoors, where there are sharp objects everywhere. The watch looks cool and is sizeable. It is easy to read. If you are looking for a simple watch, this isn't it. It is complicated, so read the owners manual. I still haven't used all of the features, and I've owned it for just under a year. For the price it is pretty good but could be more durable on the face. The watch strap has held together nicely.