I've owned the Ambit1 and the GPS seemed rock-solid. I've now owned the Ambit2 Sapphire since about May and besides all the problems Ambit2 users faced with the initial firmware, I find the GPS to be horrible - at best. I spend a lot of time hiking and trail running and the GPS logs very little of my adventures which kind of makes it a really expensive heart rate monitor. Yesterday, I hiked a 26km trail and it recorded about 10 km of the entire route - a lot of which was above tree line. My buddy's iPhone recorded the entire journey while buried in his pack. This seems to be the case every time I use the GPS. I then have to stop the 'move' and start again. I keep it on my wrist - outside my cuff. While I love the potential of the Ambit2, I've reached the end of my rope. How do others find the GPS performance.
Post #239 in this thread is a good example of the typical GPS tracks I get: https://forums.watchuseek.com/f233/am...861150-24.html
Thank you for your input.