Best GPS Devices - Quadrifilar Helix Antenna

'Very good.'

'Seamlessly connects to geocaching.com.'

'variable-use global positioning device'

'such a huge screen'

'USB computer interface makes it possible to add new programs and maps as well as store previous trips and data.'

'general purpose global positioning device'

'the navigation on the Rino 520 and Rino 530 are similar to the eTrex Vista C units, in that they come with installed base maps of the US, allows for user downloadable detailed maps, it performs auto routing, off route calculation, turn by turn directions with audible alerts, and has the ability to accept these downloads though a USB connection.'

'The Garmin Rino 530 and Garmin Rino 520 is waterproof to IPX7 standards and is WAAS capable.'

'Has an external antenna which is preferable for situations where open sky is limited.'

'This portable GPS navigator features a 256-color TFT display that's easy to read in bright sun along with a built-in basemap and auto routing to provide you with turn-by-turn directions to the marina for a day of boating.'

'Compared to other multi purpose GPS receivers on the market, it is midpriced at around $325..'

'decent size 2.7 inch'

'The 315 is lightweight, at only 7 oz., and small, measuring 6.0" (h) x 2.0" (w) x 1.3" (d).'