The G1 personal navigation device from I-Navi comes with some interesting improvements such as a brighter display that has a resolution of 800 x 480 pixels. It is powered by an AU1200 chipset from RMI, and really differentiates itself from the rest with the inclusion of both geomagnetic and gravity sensors. The former detects the absolute direction of the North Pole as well as heading direction of the vehicle while the latter senses motion via vectors X, Y, and Z. This means you can drive through urban canyons without missing a beat, as both sensors will maintain a steady direction unlike other GPS navigation systems that rely purely on their antenna.
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