The Garmin Colorado 400t, though a little pricey, offers great value for your money spent, according to GPS Lodge. With a large color screen and clickwheel similar to the one used on the iPod, the Colorado 400t is easy-to-use and versatile. Its wireless features and built-in heart rate monitor make it the perfect handheld GPS for in the city or out in the wild. The Garmin Colorado 400t is available from Amazon for $599.99.