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

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Cheap tat. Fine for a dashcam but if you want to make proper content then you'll be disappointed. I bought a GoPro Session 5 about 6 years ago and it's still pretty decent. You can problem get a used one of those for the same price as this.
I do a headrest mount from the passenger seat to get in cabin videos. Have done this with an old GoPro hero5 session and will be doing another track day this week with DJI hero 5 Pro. The DJI being years newer is much better quality. I keep stability on and on normal mode and it performs very well with how shaky the arm gets from driving without over stabilizing it. I did a few test runs with the DJI and I’m gonna do 4k 30fps, ev -1 and auto ISO 100-800. And 10bit color (so I don’t have to do too much color grading/correction in post and can just use the raw footage). This was able to get me some decent videos in bright day time and see everything clearly! If you can, do some test drives with your settings. Nothing worst than recording a full track day to find the footage unusable.
Session 5 my beloved
Yeah, had a Hero 5 Sessions for years. - Now I have a DJI Action 2.
My favorite GoPro (I have) is the Hero 5 Session, the 1 inch cube. On DJI I haven’t moved from the OG Osmo Action, it’s very enough and smaller than other osmo actions with the same form factor. Also I’m poor so I may biased.
Hero 5 Session is my favourite action camera of all time - lightweight, (some) image stabilisation, sturdy as hell and decent 2.7K image. Also, it's basically invisible to others when you're using it to film yourself, due to the size and shape, so it doesn't attract attention. It's such a shame that there was never a new generation after that H5S, or that anyone else made one in that form factor. I remember there was a rumour, something to do with a legal injunction as someone else had a patent for a similar device, which now blocks everyone, including GoPro, from using that shape. If there was a new generation of Session I wouldn't hesitate to snap it up. I've had three before but the battery always dies out and replacing it is a massive pain that involves tearing the camera apart and then soldering a new battery into it. I don't trust myself to do that competently.

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