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If you're a believer in the mantra "size matters" then TomTom's XXL 540 might just hit the sweet spot. It's kitted out with the GPS market's surprise hit of the 2009/2010: a big screen. In this instance, the TomTom has gifted the XXL 540 with a 5-inch screen. Thanks to the unit's round corners, curved edges and relative thinness it's not as visually imposing as the 5.2-inch Garmin Nuvi 5000 or .
On smaller cars, such as our review vehicle, it takes a lot of the available windscreen real estate and can obstruct vision of the road. Those with larger cars or vehicles with deep windscreens should find the greatest benefit, though. Naturally, the map is noticeably easier to read and entering destinations via the on-screen QWERTY keyboard becomes a doodle.
The menus are a little nicer now.
Like other current generation TomTom units, the menus have been given a subtle lick of paint, with a bit of anti-aliasing here, a shadow and gradient fill there. Given that it sports the same 480x272 resolution as TomTom's 4.3-inch models, the XXL 540 isn't as sharp or as smooth as it could be. Tapping the map screen's info boxes gives drivers easy access to two commonly used functions: volume and route overview.
Like the smallerand , the XXL 540 is equipped with the company's EasyPort windshield mount that clips onto and swivels around the unit's speaker. It folds up compactly and looks swell, but it requires the right technique to adjust and set up on one's windscreen. Grab the GPS' body only and attempt to adjust the angle and it will be thumping into your dashboard quicker than you can utter an expletive; the correct technique requires a firm single-handed grip on both the GPS proper and the part of the mount that connects to it.
It wouldn't be stretching the truth to call the XXL 540 a One 140 or XL 340 with a big screen because, screen size apart, the three units are identically specified. So, if you require Bluetooth hands-free with your GPS, you'll have to look elsewhere. Depending on the time of day, the XXL 540 switches automatically between the day and night viewing modes.
Lane guidance is present for most multi-lane roads and is prominently displayed in the status bar along the bottom of the screen. For highway and motorway exits and intersections the usual map screen is replaced by junction view, a computer rendering of the upcoming junction complete with street signs and flashing arrows for the suggested lanes.