Your the one thats buying it and your the one thats going to wear it, so what I say or anyone else says is moot
You need to try them on and check and see which one fits you the best and sits properly on your wrist. Everyones wrist is different and what works on some make not work on others
However. One main point to consider
Rad you need to undo 4 screws, remove the arms etc. to replace the strap each time your want to change it.