
DJI
Osmo Action 5 Pro
Great low-light, mic integration; watch out for lens flare.

Running these analyses costs money. Buy through my links to help keep lights on! I may get a small commission.
You will not notice a difference in video, especially at 4K. Mission will appear more detailed. The only time you will notice a difference is shooting at 50MP and zooming to 400%. Not the case for video.
It's the exact same sensor on the 11 as on the 13.
Everyone here saying to get the 13, but the 11, 12 and 13 all use the same sensor and all shoot raw, so they will all deliver identical results for your use case. The only benefit of the 13 is a better first party macro (and anamorphic) lens attachment which can be beneficial for photography. There are however third party macro lenses for the 11 and 12, and while they're not as easy to use or as versatile as the one that's made for the 13, they do work.
Have a Hero11 Black. It works great. I've used a GoPro Max for action sports outside the water. I really love that camera, but I've heard it's not so good for underwater shooting.
The 11 is great, don't over think it. Buy whatever is in your budget, 11 is great due to the front screen and quality is great too.
Same here! Do got the media mod, it makes a ton of difference in the sound. Be aware that all the previous generations weren’t that good in low light. If it is for vlogging, there is a light that attaches to the media mod, so he’ll be sharp. The ones that were just announced are supposed to be better in that regard. However I also have a Osmo Pocket 3, the bigger sensor ís better, but it’s still physics and a lightsource is simply better. Very nice to gift him this camera
I have a GoPro 9, 10 and two 11’s and had a DJI Action 4 at the end of last kayak fishing season. I don’t care how anyone regards GoPro in relation to DJI or Insta360, I care about my own experience. I chose to stay with GoPro. Edit: I forgot that picked up a GoPro Max on super deep discount at Best Buy after I decided to sell my Action 4 and stay in the GoPro camp.
My 9, 10 & 11 are awfully good to me.

DJI
Osmo Action 5 Pro
Great low-light, mic integration; watch out for lens flare.

DJI
Osmo Action 4
Reliable, stable, good battery; struggles in low light.

Insta360
Ace Pro 2
Community favorite for low-light, 8K; lacks 10-bit color.

Insta360
Insta360 X5
Replaceable lenses, 360 reframing; poor distant image quality.

DJI
Osmo Action 6
Strong low-light, good battery; aggressive HDR, soft night photos.

Ranked #1
DJI - Osmo Action 5 Pro

Ranked #1
DJI - Osmo Action 5 Pro

Ranked #1
DJI - Osmo Action 4

Ranked #1
DJI - Osmo Action 5 Pro

Ranked #1
DJI - Osmo Action 4

Ranked #1
DJI - Osmo Action 5 Pro