Been on whoop 4 since the above post 10 days. All reading are back to 5% difference versus garmin or apple watch. Whoop 5 was off by 30-45% during workout or longer walks. The whoop 4 can take 90 mins lifting session without wiping the sensor once. The whoop 5 was reading 90bpm when I was doing 140is on both the garmin and apple watch. Whoop 4 is just better. I dont think I will be renewing my subscription at the end of this year. Unfortunately everything that was bringing value to the yearly subscription (getting free hardware upgrades, accurate readings, the possibility of getting future better bands, with better sensors) has gone out the window. I absolutely hate the new ui, i hate that I cant see my steps and calories burned on the main overview since the changed the software. Now I am forced to deal with recovery, strain and sleep that were options I could have added or changed in the previous ui. their support is horrendous, all I got as “support” was if the band was placed correctly… Even though they had 7 months of data with whoop4 that dropped on all metric by 30% the moment I started wearing the 5.0…