I did a little test to find out. Sorry about the colours in this one, it's all shot on iphone in HLG and was quite hard to make work in the colourspace for youtube. I'll get there.
Filmed on:
iphone 14 pro in cinematic mode, natch
DJI Osmo Action 1 with ND 16 for smooveness
Stats recorded on a Garmin Fenix 5.