Per @dos decided to give my #mobilelinux #fitness app a test on the #Librem5 and it wasnt bad! Flatpaked my app and tested with the lastest Crimson build. Had some small performance issues within the settings section and my music cut out a bit while it was scanning for my Bike Trainer and my HR Strap but after that it was smooth sailing.

Wanted to grab a battery life comparison so only did 30 mins with only gapless for audio and my fitness app. 12%/30mins so 24%/hour estimated.

like @dos mentioned, this seems like enough to get you through a workout as long as you are not doing long endurance training or using GPS, I wasnt. It also has the problem they mentioned of while active life is fine, standby is where its a challenge so while this is enough while on a full charge, if you like most people work out at the end of the day after work, you might need to top up prior to working out.

@dos As a point of comparison, i did the exact same 30 min workout on my #FLX1 in the same conditions, only gapless + flatpak app for a more apples to apples comparison.

There wasnt any lag at all and no music cutout during the scan. Used about 9%/30mins so 18%/hour estimated. So not too far off but the big difference is the FLX1 has really good standby so even if the workout is at the end of the day its more likely that you will have enough juice at that time.