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The best aftermarket sat navs

  • Why are dedicated devices better than apps?
  • The best aftermarket models recommended
  • Sat nav buying advice

Written by Chris Williams Updated: 17 May 2024

Smartphone sat nav apps like Google Maps have made them the go-to choice for many drivers. Real-time traffic updates, turn-by-turn directions, and points of interest – what’s not to like? However, despite this, dedicated sat nav devices continue to hold a significant place in the market.

One of the main advantages of dedicated sat nav devices is that they have been designed specifically for navigation purposes, with some devices designed specifically for larger vehicles like campervans. Unlike smartphones, which are multi-functional, sat nav devices are optimized for one thing and one thing only – guiding you through your journey. No pausing to accept calls or messages, no losing direction as you change the playlist playing through the in-car entertainment system, plus they often come with larger screens that provide clearer, more detailed maps and are easier to read at a glance while driving.

Apps like Google Maps are frequently updated, but dedicated sat navs often offer additional features such as advanced lane guidance, speed camera alerts, and points of interest. These features can make life so much easier when driving in unfamiliar areas. Additionally, sat nav devices have built-in GPS receivers that maintain a more stable and accurate connection than that of a smartphone. This can be a huge benefit if travelling for long distances or driving in remote areas where mobile data coverage might be patchy.

If you are looking for superior performance, detailed navigation features, and more reliable GPS connectivity, a dedicated sat nav device is the logical choice.

The best sat navs at a glance

Editor’s choice: Garmin DriveSmart 76 – Buy now from Currys
Best for intuitive use: TomTom GO Discover – Buy now from Argos
Best for touring: Garmin DriveSmart 65 MT-S – Buy now from Amazon UK

The best sat navs

Editor's choice
The large-screened Garmin is a double-act combining smart technology and navigation to become your in-car control device as well as the navigator. You can launch Alexa and get the sat nav to play music, make hands-free calls, give you information on the weather, and more.

In terms of its navigating capabilities, the DriveSmart 76 is first class. The seven-inch screen is about as large as is practical in a car, and the graphics are crisp and smooth. If you need directions on the move, you can use the Garmin voice control and with the Garmin Traffic function, you don’t have to fret about congestion and delays. It’s a superb option for those who love and use gadgets and connectivity.

Naturally, there is Wi-Fi for easy downloads of map updates, but one of the other features we really approve of is the use of TripAdvisor, which allows you to see ratings of places you’re planning to visit. This is a neat idea and goes well with the Trip Planner function.

Pros

  • Loads of smart functions
  • Easy navigation
  • Large, clear screen

Cons

  • TomTom GO Discover has better maps
Screen size 7-inch
3D buildings Yes
Wi-Fi Yes
Voice control Yes
Map coverage Europe
Best for intuitive use
The DriveSmart 76 MT-S comes with free, frequently updated Euro maps pre-installed. Many of the GO Discover's plus points are behind the screen, hidden from view but very noticeable. For example, the GO Discovery can use 5Ghz band Wi-Fi to improve the speed of any updates. The GO Discover is very fast and responsive, too.

Combined with the speedy upgrades, we really like how easy the whole interface is – it's simple and intuitive. You can choose between five, six, or seven-inch HD screens. We reckon the six-inch screen is the size to go for. On that model, you can enjoy the 3D buildings and clear lane guidance instructions.

Pros

  • Incredibly accurate maps
  • Great user interface
  • World coverage

Cons

  • Garmin is better for smart features
Screen size 5, 6, or 7-inch
3D buildings Yes
Wi-Fi Yes
Voice control Yes
Map coverage World
Best for touring
Price: $386.59
Alternative Retailers
Walmart
$473.07
Garmin returns in a smaller, simpler form. Take out a couple of frills, and you end up with the 65 MT-S. That isn't to say the 65 MT-S is as featureless as the Cambridgeshire countryside. When paired to the Garmin Drive app, you still get live traffic and speed camera updates, for instance. You can even turn it into a reversing camera when connected to Garmin's BC 30 Backup Camera.

But the main reason the 65 MT-S is here is because of the very impressive lane guidance. On the screen, there are pictures of the road signs you need to watch for and clear diagrams, in addition to the voice guidance. The 65 MT-S takes all the angst out of negotiating a behemoth of a junction.

In terms of handy stuff for tourists, there are two gems. One is TripAdvisor, allowing you to review hotels and places of interest. Foursquare user data is also included.

Pros

  • Great value
  • Fantastic guidance
  • Lots of drive and travel features

Cons

  • Set-up instructions could be better
Screen size 6.95-inch
3D buildings Yes
Wi-Fi Yes
Voice control Yes
Map coverage Western Europe
It is entirely understandable that you may not want all the bells and whistles on your sat nav system but rather just a basic but quality system. The TomTom GO Basic is the device for you.
The screen may be basic compared to others, but there's no way you’ll misinterpret it. Crucially, you still get free map updates that you can access via Wi-Fi – and the map coverage is for Europe. Plus you get free TomTom traffic which will help plan your journey and avoid delays.

You can choose between a five- or six-inch screen, and you won’t go wrong with either. The GO Basic is like a quality budget dash cam: functional, easy to use, and effective.

Pros

  • No flim-flam
  • Easy to operate
  • Full Europe map coverage

Cons

  • The screen can lack sensitivity
Screen size 5-inch
3D buildings No
Wi-Fi Yes
Voice control No
Map coverage Western Europe
Best for larger vehicles
Price: $800.00
What does this unit give you? Quite a lot, actually. As you would expect, the GO Camper Max is set up for road trips and tourism. Therefore, the route planner takes into account the kind of vehicle you are driving and selects suitable roads for it, favouring the more scenic options when it can. This is a very handy feature for large, unwieldy campervans. Map updates via Wi-Fi? Naturally.

In addition, millions of preloaded points of interest are available to you. However, TomTom also offers the Camper Go Tour model. It's smaller and cheaper, but it drops some features.

Pros

  • Live traffic and speed camera info free
  • Scenic route-biased
  • Cheaper Tour model also available

Cons

  • Requires smartphone connectivity to get live traffic updates
Screen size 7-inch
3D buildings Yes
Wi-Fi Yes
Voice control Yes
Map coverage World

FAQs
What makes a Sat Nav better than a navigation phone app?

A quality sat nav is far more detailed than Google Maps or a basic navigation app. In some sat navs you will even find buildings and terrain shown in 3D, making navigation through big, complicated city road networks far easier. Sat navs also have larger, clearer screens than those on a smartphone.

Tried and tested sat navs often have better live traffic information and lane guidance software. This is a crucial factor when sat navs compete with apps in cities. Navigation apps are more commonly used in urban and suburban zones because these apps usually rely on a mobile connection, which tends to get sketchy out in the middle of nowhere. Thus, sat navs need to outperform the apps in the complex tangle of city roads – and they do.

Outside of urban areas, sat navs will keep working (unlike navigation apps) because they operate using GPS.

Remember that navigation apps also burn through a smartphone’s battery. Of course, if you keep a charger in the car all the time, this is less of an issue. But it is still more convenient to have a plugged-in, powered device ready to go.

Modern sat navs are like high-tech dash cams, but remember there are quality, more functional options at lower prices, too.

Sat nav buying tips: What features are important?

Map coverage and updates

You should know that sat navs come with different maps. By this, we mean that sat navs offer maps for just the UK/Ireland, Western Europe, Europe, or world maps. Naturally, it’s circumstantial as to how much map coverage you need.

Along with map coverage are map updates. It is worthwhile checking that the sat nav you want offers free updates on maps (all our recommendations do). Some sat navs charge extra for map updates.

If your chosen sat nav’s internal memory gets full, purchase an additional memory card to boost the storage capacity.

Points of interest

For tourists and travellers, an included POI index is of significant value. With this feature, you can find functional places, such as petrol stations, but also attractions, hospitality and so on. The TomTom GO Discover even goes so far as to offer live fuel and off-street parking information for a fee. Meanwhile, the Garmin sat navs above use the enormous Foursquare database.

Screen size

This one is quite self-explanatory. A larger screen gives you a better view, but make sure you’ve got the room for it. All the satellite navigations we recommend are at least five inches, which is about the minimum we suggest to provide you with a clear view of what’s on the screen.

Live traffic and speed camera updates

Though these functions come in return for a paid subscription, live traffic updates and speed camera updates are very useful if you’re on the road a lot. Both TomTom and Garmin offer these services. TomTom’s services are available via the renewable TomTom Traffic and Speed Camera Updates subscriptions. Garmin offers its services via the Garmin Drive app.

Sat Navs apps other than Google Maps and Apple Maps:

Sat nav devices are better than apps. But there are some very good navigation apps around if, somewhat understandably, you can’t justify the outlay of a sat nav.

Waze

Waze is the best of the free navigation apps. Thanks to the combined effort of Waze users, you get pretty accurate traffic alerts and notifications. Plus, you can use your music apps with Waze, meaning you don’t have to flick between apps on your phone.

Waze is far from the detail and ability of the sat navs above, but for a free app and for occasional users, it’s good and very handy.

Sygic

Sygic is a step up and gives you impressive navigation as far as apps go – but for a price.

You can purchase a license (Premium or Premium + Traffic) for a one-off cost, which gives you offline maps, guidance, speed camera information, and the usual stuff. But there are also add-ons you can buy too. These are borderline gimmicky, though – the head-up display and Real View navigation, for example.

The included features work well, but remember that everything except the offline maps needs an internet connection to work.

TomTom GO

Once again, TomTom pops up. Its GO app has a free 30-day trial and then costs £12.99 per year. Like Sygic, you get offline maps, but TomTom GO is even better at lane guidance, traffic and speed camera updates. This is not terribly surprising.

However, don’t forget the downloaded maps demand a fair amount of space. Also, like Sygic, all the features need an internet connection.

Alex Boyd is a Commercial Content Writer for Parkers, specialising in power tools and pressure washers. In his spare time, he enjoys DIY, travel, gardening and music.

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