If you want a product that bundles sat nav, dash cam and the capability to make hands-free calls together — the Garmin DriveAssist 51 LMT-D will do the trick. The Garmin DriveAssist 51 LMT-D is a sat nav unit that features an integrated dash cam, in an effort to cut down on windscreen clutter and fuss. You can currently get one from Halfords or Amazon for about £240, with the links available (along with lots of other info) in our review: kit.honestjohn.co.uk/reviews/review-garmin-driveas.../

Another option would be to get an inexpensive dash camera, like the excellent YI Smart (kit.honestjohn.co.uk/reviews/review-yi-smart-dash-.../) and a separate sat nav like the TomTom Go 5200 (kit.honestjohn.co.uk/reviews/review-tomtom-go-5200.../) or the Garmin Nuvicam LMT-D (kit.honestjohn.co.uk/reviews/review-garmin-nuvicam.../) - which both offer navigation and hands-free calling. My personal choice, if you have a smartphone, would be to use the free and very useful Waze app for real-time navigation and a dash cam that offers footage of at least 1080p and 30fps (which is most branded dash cams).