So that your question can possibly be answered, we have forwarded it directly to the community. This is because we unfortunately do not have an effective user experience with the product.

However, I am the owner of the previous model, the F2 Pro. The F3 is the same size (mine is a bit thicker and a few grams heavier). I voluntarily left it at home with shorts on in summer. Pulls your trousers down, falls out of the shorts pocket. If you're looking for something more manageable, check out the mi 10 resp 11 lite.