Best GPS Navigation Systems

The Earthmate PN-40 is a high-sensitivity, high-performance, bright-color-screen handheld GPS that offers an unrivaled selection of display options including up-to-date DeLorme Topo USA topographic maps, color aerial imagery, USGS 7.5-min. topographic quad maps, and NOAA nautical charts……..

Product/Technical Features
- 32-channel STMicroelectronics Cartesio chipset; dual-core processor for blazing-fast performance
500 MB of available onboard Flash memory; support for high-capacity SD cards (SDHC) up to 32 GB
3-axis electronic compass; Barometric altimeter.
- More detailed onboard base map data for the U.S., now with secondary and connector roads, along with major highways.
- Fast USB 2.0 data transfers to in-device SD card–no external card reader required.
- 1:100k Topographic, Detailed Street Maps & POIs Included.

Product description, features and technical details courtesy of Amazon.com