Navman MY450LMT GPS unit

The Navman MY450LMT GPS unit is the company's latest top of the range portable GPS unit

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Navman MY450LMT
  • Navman MY450LMT
  • Navman MY450LMT
  • Navman MY450LMT
  • Expert Rating

    3.00 / 5
  • User Rating

    1.00 / 5 (of 1 Review)


  • Free monthly map updates
  • Clear & straightforward map screen
  • General navigation works well


  • Screen isn't always responsive
  • Software can be sluggish
  • Voice commands are very hit and miss

Bottom Line

The Navman MY450LMT is the first to come standard with monthly map updates free of charge for the life of the device. However, it is let down by slow software and a touch screen that isn't always responsive.

Would you buy this?

The Navman MY450LMT GPS unit is the company's latest top of the range portable GPS unit. It's the first to come standard with monthly map updates free of charge for the life of the device, but is let down by slow software and its touch screen wasn’t always responsive in our tests.

Large screen but sluggish to start

The MY450LMT is Navman's top of the line portable GPS unit but the unit itself uses a pretty plain and straightforward design. The bezel surrounding the 5in screen has a brushed aluminum look, while the surround is glossy black plastic. The chrome edging around the bezel is a nice touch, and we like the matte, soft-touch finish on the back and sides.

There's a power button on the top of the MY450LMT unit, but it does require a real firm press to operate. A microSD card slot, an AV-in port (for connecting an optional Navman reverse camera) and a mini-USB port for charging are located on the left side. The window mount is similar to the one used with other Navman units and is easy enough to put into position and adjust, though it does feel a little flimsy.

The Navman MY450LMT has a large, 5in resistive touch screen. The display has a matte finish so it performs reasonably well in direct sunlight, but viewing angles are poor. The touch screen isn't the most responsive, especially when entering addresses using the on-screen keyboard. We often had to repeatedly tap the screen to make a correct selection and the software doesn't keep up when typing quickly.

The MY450LMT's touch screen isn't the most responsive.
The MY450LMT's touch screen isn't the most responsive.

The MY450LMT's software is also sluggish in general. The unit takes a good 20 seconds to power on and displays a safety agreement alert that has to be accepted every time you switch it on. In our experience, competing units from Garmin and TomTom do not have the same issue.

Clear map screen, large menus

Entering a destination on the Navman MY450LMT is done via a single "find" menu where you can search using an address, keywords, POI's, intersections, GPS coordinates, postcodes or by picking an area on the map screen. The keyword search works reasonably well and can save time. For example, you can search "The Star" or "Casino" to bring up similar results. Regular address entry is a three-stage process of city, street, then the house or building number.

The Navman MY450LMT's map screen is spacious in size and reasonably easy to read. Street names are clear and a small yellow arrow points to each street to minimise confusion. Tapping anywhere on the map brings up a map options menu where you can bring up zoom controls, make a detour, see an overview of your route or cancel the route. The route overview displays a list of all the turns, a complete overview of the route and information including distance to go, ETA and average speed. You can also adjust the voice volume in this menu, though we wish you could do this on the map screen itself to save an extra screen press.


Voice guidance is clear and comprehensive and the MY450LMT includes an Australian text-to-speech voice that deals with Australian pronunciation quite well. Audio is loud and clear, but could use a boost when driving in busy city traffic. This is especially evident if you're driving with the window open.

Navigation performance is solid. The maps also have a tendency to miss a number of 'no right turns', and also didn't warn of some red light cameras that we passed, although we were alerted about speed cameras and accident black spots in their correct locations. School zone warnings are also included and are time relevant, so the warnings only appear when it's between 8:00am - 9.30am and 2.30pm - 4:00pm in NSW (and the relevant times school time zones when used in other Australian states). Unfortunately, they aren't automatically disabled during school holidays.

Monthly map updates

Being a top of the range unit, the Navman MY450LMT includes lane guidance & 3D junction views, speed sign & limit alerts, landmark guidance, and live traffic updates.. Junction views and lane guidance are very useful when entering and exiting unfamiliar freeways and motorways and worked well during our testing. Speed signs displayed on most roads, though we did encounter various minor roads where they did not show.

The MY450LMT also includes Bluetooth connectivity and voice command functions though we experienced issues with both of them. The Bluetooth refused to connect to both a Sony Xperia Z and a Nokia Lumia 925, while the voice command function is frustrating to use. It rarely translated a spoken address, so we found it quicker and easier to enter a destination manually.

The MY450LMT's monthly map updates are
The MY450LMT's monthly map updates are "verified and validated" on an automatic basis.

The Navman MY450LMT is the first device to offer monthly map updates, called Rapid Map Refresh. Navman says the monthly map updates are "verified and validated" on an automatic basis, though you do need to connect the unit to a PC or Mac and download the update through Navman's NavDesk software.

The Navman MY450LMT is available now through major retailers in Australia and New Zealand for $279.

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Read more on these topics: gps units, navman, GPS, in-car gps

Graham Sutherland


Can the MY450 be used as a hand held unit, independent of a vehicle, using its own battery power?
Regards Graham



Yes Graham I just bought one and it has a setting for car or pedestrian , although I have not tried the pedestrian setting yet

darryl field


can I charge my navman 450lt thru my computer



Is it Mac Compatible?



Yes, thankfully it is mac compatible which is why i had gotten rid of the one i owned previously.

The unit is great, however the software isn't the easiest to use and there aren't any downloadable special features, icons, voices etc available like with tom-tom……..have just taken two units back….a tom-tom which never connected………and a garmin which didn't have an audible speed alert. I only which you could customise the driving screen…..will see i guess.



derryl. yes you can charge your device on a normal computer it dosen't have to be mac.



I was really disappointed with this product. I got this as a Christmas present from my husband mainly because I needed a new handsfree for my mobile and it has the AV input which would have worked with my DVD headunit in the car. I really liked most of the features but the two things that really let this product down is it's Bluetooth connectivity to smartphones and the touch screen is not hugely repsonsive. I have a Galaxy S3 which is not supported on this brand new super GPS. Apparently the most up to date Samsung that the software on this GPS can manage is a S2. This to me screams very poor software development on really nice hardware. I think the software guys at Navman need to try harder if they can't get Bluetooth to work properly. Interestingly when I first switched the unit on my phone connected and auto connected for the first few days but after that nothing. We have since returned this and got a Garmin instead - this connects to my phone instantly on boot up every time. It is a shame because the My450LMT has some really good features, nice menu's and the potential to be a really good product.



What a p.o.s. I bought this today after being told that it will work with my mobile, now I discover it wont pair with my Samsung note 3. The software is sluggish, the supplied software hangs my laptop (6 mth old toshiba with 12gb ram so no problems there). No wonder JB are selling them off so cheap. They can have it back tomorrow.



Got a deal at HN $151 .. price matched with JB Hi Fi
Did the map updates, hmm! they didn't include safety cameras?
I was offered to buy the safety cameras update on "NavDesk" ...
... these are supposed to be free with this model !!!



I have only just purchased a brand new My450LMT and to date I am very disapointed pluged the usb into my car and it blew a fuse when the car was already running same thing happen in my second car. Has any one else had this trouble!!.



Had my one for a week and it stopped working ... Time to do a rma



Yup, I've had mine for two weeks an it has also stopped working. Simply will not turn on.... Back to HN to swap it for a Garmin.



I purchased mine last week after being told by the salesman this is the bomb. After 1-2 days it started turning itself off then wouldn't turn on again.
I returned it today and it's already started the same game.
Very slow software indeed. I'll give it this week to prove itself before I'm back for another garmin.



Bought from JB, lasted a few days and blue tooth kept dropping out during calls, they gave me a replacement unit. Replacement unit does the same thing, sent it back and they said they replaced the PCB, had it in the car two days and the same thing started to happen again. Was told by JB staff not to look at the other brands such as Garmin as they were not as reliable as the NAVMAN 450LMT. Will certainly not recommend this brand or JB HIFI to anyone else.



Have had 450LMT for several months and it works a treat. I don't bother with bluetooth or voice commands as the voice commands rarely work on any GPS that has this feature. Just as easy to type your destination. Can't really fault this device at all and has worked flawlessly. Not sure why other have had theirs not turn on or whatever. Clearly just one of those things that happens with electronic equipment.
No idea about any issues causing a computer to lag (must be a dodgy computer) as my laptop runs the Navman desktop software without a hitch.
I certainly recommend the 450LMT but not at full price. Managed to get mine on sale from Dick Smith's for about $149.

Dave M


I have used a My75T for the last 3 years
It was the Navman flagship in 2011
The directions were clear
Display easy to read
Voice (English stewardess) excellent
It ran out of maps recently
I bit the bullet and bought a new one
Got back to the car and set it up
It would not stay in the mounting bracket
Took it back to JB and they verified it as faulty
Got a second out, faulty too!
Got my money back
Updated the maps for my old device
It new about the new roads but insisted I use the old roads
Disappointed to say the least

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Brian B



• • •

Blue Tooth keeps dropping out from the iphone 4S.
Showing you can do 110 in a 70 zone

Don Kennedy



Turn it on it works
Navigation incorrect, Traffic Updates Incorrect, Show Road Congestion when there's nothing in sight, advises 50 km speed limits on adjoining Roads when you're not even heading off in that direction, GPS Realy sluggish to connect and now its not responding for up to 5mins, sometimes never so i give up.
• • •

Always had a good Run with Navman till now, Taking it back to JB Hifi NZ for a replacement or Refund,.......... Don't Buy This Model...Too Many Issues




the size
The safety camera alerts are way out of date despite monthly map updates. The touch screen is often non responsive. The live traffic updates frequently arrive too late to be helpful. The voice destination entry is a useless gimmick. The NavDesk software is confusing to use.
• • •

Is it possible that Navman will update the functions of the MY450LMT via internet to fix the programming problems that seem to come with this? If so will the registered owners be advised of this?

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