I looked at Dashcams a couple of years ago and opted for the Transcend DrivePro 200 on the basis of this video:
https://www.youtube.com/watch?v=iEW4mxG9Cn4
I have been very satisfied with it and it scores 4.3 out of 5 on the Halford's website.
Worth looking at.
With any dashcam, try and make it as inconspicuous as possible. I have covered the silver
parts of my dashcam with black tape.