I've only used a GoPro Hero 9. I record at 4K, 30FPS in linear mode with horizon leveling on. My stabilization is on Hypersmooth Boost. I think I will go down to 2K, though, as these 4K movies take a long time to process.

I've tried recording on Wide but there's no horizon leveling. The video rocks back and forth without the horizon leveling and it was making me nauseated. I use the Rouvy virtual cycling platform, and some people prefer the horizon leveling off which gives a more real bike feel. However, the cyclists who record those routes from their bike are extremely strong cyclists, and can ride up hills without rocking their bikes. Not me.

Anyway, here's a sample clip from my camera using the same setting on 3 different rides. The first clip is being recorded around 5:45am so it's actually pretty dark outside. You can see the GoPro does a pretty good job of bumping up the light. However, this stretch of road isn't very smooth, and it shows the GoPro's image stabilization isn't the best in low light. In the middle clip we've slowed down to around 15mph to cross a bridge but the video stays stable going across bumps. In the final clip, we are flying down a long descent. I hit 47mph on this stretch. The road is pretty smooth and the video isn't jittery at all. The road is actually windier than it seems, but the horizon leveling takes some of that effect away. Towards the end you do see a few bumps in the video as I roll over the road reflectors as I pass my friend.


Paul