Dash Cam Mini Series

I had two Garmin Mini sensors fail after a short time. Which sucks because they're the most subtle form factor cam on the market. Everything else is bulky and ugly (see OP's photo) which ultimately is an important consideration for something that I want to keep hidden from sight. I really did love them...while they worked, at least. Went with Viofo for the replacement and am happy so far, while keeping my fingers crossed.

I use the Mini 2 with Dongar on both of my cars.

I have garmin mini 2 with dongle to plug it into mirror 

I use a Garmin Mini and just hide the wire along the top and side panel and connect the USB to the passenger charge port. Works fine for me!

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

Plugged in a Garmin dash cam mini 2 using a short cable matters USB-C to Mini-USB cable. Worked well for recording with the car on. Later bought the Garmin OBD2 always on dongle.

I went for a Garmin Dash Mini 2 because it's discreet, doesn't get in the way of vision, and the data can be extracted easily. Fancier dash cams exist but it's all I need.

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.