Best big-screen satnav: Garmin Drivesmart 86.Best value satnav: Garmin DriveSmart 66.Best mid-range satnav: TomTom Sat Nav Go Essential.We’ve picked out the best satnavs you can currently buy to help you make the right choice. What’s more, today’s satnavs have learned some lessons from their smartphone rivals, and they’re packing in bigger, better screens, additional features and useful live services. The best satnavs simply work, and if you’re already used to Garmin or TomTom’s interface and systems, you might not want to switch to something new. Meanwhile, smartphones aren’t always reliable when it comes to getting a GPS signal or even, in some cases, making sure that their internal compass is pointing in the right direction. And can you remove your car’s built-in satnav and take it on your holiday in a rental car? For a start, not all new cars include navigation in their entry-level models, while older, secondhand models might have an outdated satnav – if they have one at all. However, there’s still a lot to be said for the best satnavs. Does anybody still need a satnav? Now that many cars are sold with built-in navigation and any decent smartphone can do the job, you might think the answer would be no.

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