Navman S50 3D Review - Trusted Reviews
Trusted Reviews have published a review of the Navman S50 3D navigator. 'The Navman S50 3D also boasts Sirfstar's new InstantFixII technology. This effectively allows GPS devices to predict more effectively the position of satellites in the sky, resulting in (supposedly) a much faster time to initial satellite fix, especially when the device has been switched off for a few hours or more. But, though the S50 3D is pretty quick at picking up a signal lock - around a minute from off even in extremely challenging situations - it's not noticeably quicker than other sat-navs I've tested. It does, however, hold onto its signal well once locked on - more reliably than the Navigon 2100, for example, when the tall city buildings loom.'