I am retiring my Blackbox G1 dashcam and adding the Garmin NuviCam LMTHD. I don't smart phone so this was my option for a dashcam and navigation. So far I'm impressed by what it does. The voice commands are better than expected. Posted as a option for those wanting a dashcam and navigation. Below are links for info and the video about the unit is 5 parts so i'm not going to post all of them so you will need to select the next in the series from YouTube.
https://www.amazon.com/Garmin-NuviCam-LMTHD-6-Inch-Navigator/dp/B00WAP8PI2
https://youtu.be/mlHOyomEoaQ
https://www.amazon.com/Garmin-NuviCam-LMTHD-6-Inch-Navigator/dp/B00WAP8PI2
https://youtu.be/mlHOyomEoaQ