I needed a new altimeter watch and saw this one on a google search. Got it for 39$ on amazon. Dang good watch for the price! I read all the reviews and there were some where people had problems or the watch quit working. Mine has been functioning fine for a month. Lets me track altitude on climbs and descents and note the falling/rising barometric pressure. I didn't want to pay hundreds for the same performance and this one work as well or better than my last more expensive one. I recommend it!