The Samsung Galaxy Z Flip 5 has defeated the Motorola Razr Plus by outlasting it in a human folding test. Here are the results.
In Youtuber's hand-folding test (live stream), the Razr Plus broke after 126,364 folds (hinge gave up after ~44k folds) while the Z Flip survived 273,316 folds (but lost ability to stay fully open after 223,000 folds) and is still going right now in the live stream.
EDIT: the Z Flip is now at 275,203277,350298,500 300k folds!
His point in another video is that the machine is "too gentle" on the phone, ie it applies the pressure evenly on the phone, whereas that's not the case when we fold phones in real life. For instance, the Razr Plus was claimed by Motorola to withstand 400k folds, yet real-world testing shows that they give up after 44k cycles.