
VIOFO
A229 Pro Series
Top-tier video, reliable evidence, but app struggles.

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I use the Garmin mini dash cam (don’t remember exact name) and it works great too. Used it for multiple incidents and never had any issues. Doesn’t record when power is off however
You can easily run the 12v (cigarette outlet plug) to the back by tucking the cable under the window trim. Mine tucks in right above my rearview, and then runs all the way to the back. Takes 5 minutes! If the cam you buy doesn't have a long enough cable you may need to buy a separate one that's long enough, but I think my Garmin Mini came with a long enough cable.
A Garmin Dash Mini is less than £100, then plus installation if you want to hard wire it. It's cheaper because it doesn't have a screen. But videos are still visible via the app and memory card. It's also very small and fits nearly behind the mirror.
My Garmin has been working great for near on 8 years now.
Garmin Mini. Cheap, simple, reliable and tiny. Beautiful picture, no GPS or speed indicated on the videos so be aware if you need that. No screen either. You use your phone to view the videos. Beware of Chinese dashcams from brands you never heard of. I went through several before landing on the Garmin. Runs on USB, the power wire tucks right into the trim around the windshield.
I have a Garmin Mini too- using Garmin Drive app you do not need a subscription to download footage. You do need an SD card though. It'll auto save what it considers "events", but you will have big files for everything else where you can use Garmin Drive to select the beginning and end of what you want to save then you export it to your camera roll. It's pretty easy and if you arent trying to get 10 min of footage it takes very little time to export it. I have a 128GB card and it saves a couple days worth for me, ymmv depending on how much you drive.

VIOFO
A229 Pro Series
Top-tier video, reliable evidence, but app struggles.

VIOFO
A229 Plus Series
Dual-cam coverage, great video, but app still problematic.

FITCAMX
Integrated / Universal Series
OEM fit is great, but night video/recording unreliable.

VIOFO
A119 Mini 2
Compact, budget-friendly Starvis 2 clarity; app issues.

ROVE
R2-4K Series
Affordable, easy; 4K claims debated, SD card picky.

Ranked #1
VIOFO - A229 Pro Series

Ranked #1
FITCAMX - Integrated / Universal Series

Ranked #1
VIOFO - A229 Plus Series

Ranked #1
VIOFO - A229 Pro Series

Ranked #1
Vantrue - N4 Series