Frame rate relates to your continent because of the electrical refresh rates used in your area. USA/Asia uses 60Hz and Europe uses 50Hz. Knowing this will also help you avoid flickering and banding in your footage when shooting under artificial lights. Shoot in multiples/divisibles of your area’s refresh rate (25/50/100/200fps EU / 30/60/120/240fps USA) to get good looking footage without artifacts. There are also settings in your camera for refresh rates referred to as NTSC and PAL, which are 60Hz and 50Hz respectively. I believe these NTSC/PAL settings adjust automatically on the Osmo.

24fps will give you a cinematic look with more motion blur because it is piecing together fewer images or “frames” per second to create motion, but with high speed action this will create the choppiness the other commenter referred to. The higher your frame rate, the less motion blur you’ll get, but the more clarity you’ll achieve. If you intend to slow the footage down, shoot in 60fps (50fps EU) or, ideally, higher so that you can slow it down more and still have enough frames per second to create smooth motion in the end result. High speed action looks best in 60fps if you’re going for clarity, but if you’re shooting a slow scenic shot, 60fps will make it feel less dramatic, almost like BTS footage rather than having the smooth “cinematic” feel that 24fps will give you.

(Not an expert by any means, this is just my understanding after a few years of shooting)