Cobra NAV ONE 4000 Mobile GPS Navigation System Review.

Cobra's Nav One 4000 is the first portable navigation system to include Real-Time Traffic capability and a Touchscreen 5.2", high-resolution 320 x 240 color display for viewing day and night. The Nav One has many features including an automatic brightness control, which adjusts the display automatically using a photo sensor and a backlit keypad. It features Cobra's iA.S.A.P(Intelligent Accelerated Satellite Acquisition Protocol) technology, for faster acquisitions and uninterrupted satellite signal operation.

The Cobra Nav One 4000 has a Hard Disk Drive, which contains detailed mapping from TeleAtlas for the 48 contiguous states, plus Alaska, Hawaii, and also detail for Metropolitan areas in Canada. The detailed data also includes 6 million points of interest such as restaurants, hotels, banks, gas stations, and many more. Just pick your destination and the Nav One 4000 will guide you with vocal directions, and if you miss a turn it will automatically recalculate and get you back on track.