Same. I’ve been a user for many years, current “streak” starting in 2019. Whoop 5.0 has my average caloric burn at about 65% of the 4.0, 2100 a day vs 3200 a day. Runs will be relatively consistent but assault bike and stairclimber activity is vastly different. When comparing 5.0 to other heart rate devices on the same workout, the 5.0 will consistently be off by 35%. I’ve been dealing with whoop support for months, tried all their suggestions, their standard answer is to place it higher on your wrist or wear the band in a different location such as your bicep. Bought the bicep band and make sure the wristband is higher when wearing it, still did not work. I offered to go back to the 4.0 if I could get a refund. They would not allow it. After months of back and forth with support, they sent me a new 5.0. Same issues with the new one. As a long time user, this has been very frustrating.