The Navigon 8410 is a nicely designed, premium sat-nav. Had it been released a few years ago, it would have been very competitive. Unfortunately, the battle has now moved onto mobile data-enabled functions. The 8410’s sibling the 8450 will be offering these, but we haven’t got our hands on that yet. So although this is a 5in widescreen device, its price looks steep next to the cheaper Garmin 1690, which includes a year’s live-enabled services.