Used for 2 years. This watch converted me from a maybe sometimes runner to an actual runner. It saved me during COVID. I have upgraded to a fancier watch thanks to this starter watch. https://www.polar.com/ca-en/products/sport/m430-gps-running-watch Functions perfectly well. Battery lasts for at least 2 hours at 1 second gps capture. I have used it for (and it works great for) running, trail running, mountain biking. It works ok for swimming, but GPS is not super accurate in the water. Comes with original charging cable. Will last about a week between charges without a GPS activity.