This unit replaced my old MY60T which was a good unit with accurate and reliable maps. The only reason I replaced it was because the maps were out of date and it was going to be cheaper, in the long run, to by a new unit with free lifetime updates. The MY670LMT also has a bigger screen.
However, I have since found out that Navman changed their map supplier from Sensis to Navteq. This was a mistake. Sensis maps were very accurate on my old unit and speed limit changes, railway crossing warnings etc were spot on. On the MY670LMT, speed limits tha...Read more

I chose the Navman because it had a great screen size and I assumed its operating system would be as efficient to use as any other GPS (my tomtom’s backlight died after many years so the navman was its replacement). Every use of this GPS is frustrating, from its painful address search function to the number of times you need to insist that yes, you do want to cancel the route or yes, just navigate to that address please!. Not the sort of sluggish features anyone wants in a GPS while on the road.

The fact that it doesn’t default display the t...Read more

I have been a Navman user for over 10 years. However my current MY670LMT purchased in January 2018 simply does not seem to hold its charge when connected to the car charger.
I have just returned from a 17,800km trip and these are the issues i experienced.
Firstly,
1. Yes I do have the genuine Navman in-car and 240v chargers.
2. Yes I do fully charge from 240v or another source until LED on NAVMAN turns from orange to green, before each trip.
3. Yes the green light shows when on the car charger and the LED glows orange on the NAV...Read more

Nowhere near as good as my old MY 65T. We upgraded to something with a bigger screen. However The vocal directions occur continuously about every 5 seconds or less, interrupt itself with incomplete directives and after 10 minutes drives you to distraction Maps worked well but had to turn volume off. Was told to reinstall software-result was a blank white screen with + targets. Returned for repair but on return unit still had vocal fault as per the original complaint. 3 approaches today to the service area resulted in a) asked to reinstall soft...Read more

I find the speed signs shown on the device to be totally ridiculous, you can be on a 100 signed rd and the machine will show 50 and then continually beep because you are over its showing speed. In Bundaberg and surrounding arrears there are dozens of rds showing the wrong speeds I even named a lot of them and emailed them to navman and they assured me they would be fixed, that was 6 updates ago and they are still the same also this can cause road rage as a tourist going on these speeds would be creating a lot of frustration to locals who know ...Read more

I bought my first ever GPS as "Navman MY670LMT" from JB Hi-Fi on 29 March 2018. I was hoping to use it during the long easter weekend for my drive outside Sydney. However in a day of use within Sydney I figured that this is not something I can trust specially regarding the speed limits as most of them are setup wrong. It was showing me 60 on a road where it is 70, was displaying me 50 where i should be at 30. While at some places it is correct. Now, the problem is that since it has this inconsistency and inaccurate data, I don't know when to t...Read more

The following is my personal opinion:
I purchased a MY670LMT. It didn't show the address of my house, even though the older model I had was showing the address. I brought this to the attention of NAVMAN and wanted it to return and get refund or another unit as I felt the unit was unreliable, But I was told that it can't be done and that I have to wait for the update after they bring it to the attention of the map provider and only god knows as to when it will happen, because NAVMAN itself is not sure of the time frame. Now I am stuck with the ...Read more

Just bought the MY670LMT 2 days ago. The screen is very whishy washy in appearance and very hard to see when connected to the windscreen especially given the street names are really too small as well. I have placed the device down near the gear stick and can read it much easier but a bit dangerous as have to look down. I have fiddled with all settings re screen viewing to no avail. I also cannot activate the red light camera and mobile camera alerts and have driven to where they are located and no warnings even though the settings are ticked .....Read more

My wife and I each purchased one of these devices. We've found them to be dangerous, especially when trying to read street names due to the washed out appearance of the screens. We've tried all of the screen themes with various light levels and find that there is not enough contrast on any of the choices available. We have removed them from our vehicles and intend returning them to the point of purchase. We are currently on a caravan trip down the south east coast, across Victoria to South Australia. We are very disappointed in the devices and ...Read more