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Satnav head-to-head: Navman S100 vs TomTom Go 540 Live

The biggest names' top-of-the-line satnavs slug it out

Screenshot Gallery

Navman S100

Navman's main menu is uncluttered, but thin on features

Navman S100

Navmans Glide Touch UI means you have to scroll through many settings to find the one you want

Navman S100

The Navman navigation menu hides itself at either side of the screen when not in use

TomTom Go 540 Live

TomTom’s petrol pricing is a nice idea, but it rarely got prices spot-on

TomTom Go 540 Live

With built-in GPRS, traffic updates are hassle-free on the TomTom, but cost £8 a month

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