My wrist measures 18.5 cm. If I use too much, the watch moves less, but I have a circular trace and general discomfort (and the horn always rubs), I don’t see myself classifying this part! This is a new watch and will void the warranty. I also tried a nylon strap, but that doesn’t change anything since the problem is with the holster. The horns are too low and bite into the skin and bone of the wrist.
I have never encountered a problem with Apple and Garmin. This is a real shame because I love the look of the vertival and the features suit me perfectly (apart from the OHR but with a belt, this is corrected)