I have the 5.0 since one week. Wearing it in parallel to my Garmin Venu 3 and exchange them from time to time sidewise. During a weightlifting session (for example legs) Venu 3 is able to get parts of the peaks, so around 130 bpm and then some seconds later it drops slowly to 80-90. Whoop on the other side produces a kind of flatline and is somewhere around 90 all the time. No peaks at all. When I do an incline walking session (17.5%, 4.2km/h) both are around 125, but whoop needs always longer to detect that HR, Garmin is after 2 minutes already at 120bpm, whoop maybe after 5 minutes. On the other side, when we do some easy flat ground walking with my wife at around 5km/h, Venu 3 is around 90 and whoop at least 100 sometimes 110. Calories wise we dont need to speak, whoop is underestimating a lot. I have really bad feeling about 5.0. I mean when the HR reading is not working well, all the outcoming data is pointless. I’m really thinking to give it back within 30 days 
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