Today, at the USAT Multisport National Champs, my FR955 struggled to get a satellite lock, alternating between green and red. I had run the day before in the same location, no GPS issue. So, the 1st run is a 5 km / 3.1 mi course. I know this to be true for a number of reasons, including that I did the same course last year with my 920Xt. But today, the 955 reported 2.5 mi, so the pace was whack. Now, I get slow GPS satellite acquisition. I'm an owner of a FR305! But what I experience today was unacceptable. I have no idea why it happened today - I've done many runs/rides with the 955 without issue. It seems, though, that some programming is missing - bad/inconsistent satellite lock? Warn the user and reset the appropriate sensors. I was reluctant to restart the watch for fear that it might never restore. The bike leg and 2nd run leg looked perfect. Not sure what up here, but certainly a frustration. FWIW, I used a $60 Amazfit Bip S for a year+ and never had this issue. Granted, a far less capable device than the 955. But in terms of core functionality, yeah, GPS was rock solid on a device that was 1/8th the price...
Just frustrated...