Satnav products are all very well, but for in-car use you either need to keep the docking cradle in your glove compartment or stash it under the passenger seat. Sony's latest GPS devices have a built-in suction cup-cum-cradle instead. Each device sports a 3.5in fingerprint-resistant touchscreen. The NV-U52 has a single country map stored on 512MB of flash memory, while the U72T has 2GB of memory – sufficient to cover mainland Europe.

Sony NV-U52 and NV-U72T navigation kits

Sony NV-U52 and NV-U72T navigation kits