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Navman M420

Navman M420
alaScore 78

20 reviews

Dec, 2015

  • No negative mentions yet

alaTest has collected and analyzed 20 reviews of Navman M420. The average rating for this product is 4.4/5, compared to an average rating of 4.0/5 for other GPS for all reviews. Reviewers really like the size and performance. The price and usability are also mentioned favorably.

usability, price, performance, size

We analyzed user and expert ratings, product age and more factors. Compared to other GPS the Navman M420 is awarded an overall alaScore™ of 78/100 = Good quality.

Review analysis

(Based on 20 reviews)

User Reviews  

Showing 20 review(s)

Expert Reviews User Reviews


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Showing 1 - 10 of 20 Show Reviews: in English

Consumer review by: Baconman (

Does what it say's on the Can


And it does its job very well indeed,yes the volume does need to be turned up and after that you have a very good friend that knows more than you do if you would normally get lost. Good Price, Excellant in every way. Get One.

Jul, 2011

Consumer review by: Becky (

Helped out new driver


Bought for 19yr old driver for first long distance drive. Worked well and helped confidence. Did turn off voice as got rather annoying at times, but probably just don't like being told what to do!

Jun, 2011

Consumer review by: Graham (

Navman M420 with UK and ROI GPS Sat Nav with Carry Case


Good Sat Nav. Instructions are rubbish but easy to work out anyway. Keep the charger with you, runs out fairly quickly.

Jun, 2011

Consumer review by: Sarah R (

Excellent value for the price


This is the first sat nav I have bought although I have borrowed a TomTom in the past. This Navman has lots of great features, annouces up coming speed cameras and shows points of interest, even with familiar logos eg Shell petrol stations. Only used...

Jun, 2011

Consumer review by: Caro1850 (

Good for novices


Having finally realised that being able to mapread and follow written directions is of little use in today's hectic road conditions, when you're on your own, I researched Sat Navs (I'd only used them when sailing, before). This one came highly...

Jun, 2011

Consumer review by: Sian (

Great value for money


A lot cheaper than other, more well known brands on the market, but still does a brilliant job. Used recently on a UK holiday and had no problems at all - even made use of the Points of Interest feature during a petrol emergency! Would reccommend to...

May, 2011

Consumer review by: Pooky (

Excellent product


After reading previous reviews I purchased this

Apr, 2011

Consumer review by: Lorraine (

Very Pleased


looked at so many sat nav's and decided on this one because of previous reviews, and because of that I would recommend this item

Apr, 2011

Consumer review by: Big Mo (

Navman M420 with UK and ROI GPS Sat Nav.


Excellent first time user Sat Nav.

Mar, 2011

Consumer review by: moomin (

good value


We thought that this product was very good value for money. Easy to use with clear instruction., The voice is a little bit strange though, could not pronounce Ipswich properly but overall a good buy

Feb, 2011

Product Specifications


FM Transmitter: No
FM Tuner: No
Telephone Included: No
TV-Tuner: No


Bluetooth: No
Internet Connectivity: No
iPod Control: No


Monitor Format:16:9
Monitor Type:Fixed Monitor
Touchscreen:One-Point Touch

General Features

Category:Portable Navigation Device
Size in DIN:Not Applicable


3D Elevation Mode: No
3D Landmarks: Yes
Lane Assistant: Yes
Map Coverage:Single countries
Map Provider:Teleatlas
Map Sharing: No
Pedestrian Mode: No
Reality View: No
Text-to-Speech: No
Traffic Message Channel: No
Voice Control: No


DVD Player / Recorder: No
MP3 Playback: No