Well I got one years ago for Christmas. Sits on the dash and starts up when I start the truck. Otherwise do t do much with it.
If I were shopping for one I’d say get biggest screen you can, with large buttons and easy play back.
Play back probably most important.
I keep a mini iPad in my rig with an adapter to import from SD cards. So if I want to look at dash cam,go pro, camera or trail cam picks I have a larger screen. I also Bluetooth my InReach to it for a better mapping view.
Good luck in your search.