Best GPS Devices - 2 to 4 inch Screen Size, Handheld Form Factor, Serial RS-232 PC Interface

'features a built-in compass and altimeter'

'After using the eTrex Vista C handheld GPS Receiver for some time, we are still very happy with it here at the lodge.'

'The SiRF delivers some of the best GPS satellite acquisition times available.'

'This GPS unit's diminutive size and weight, not to mention its rugged design, make it an ideal hiking companion'

'features a built-in compass and altimeter'

'The device's weight (5.3 ounces, including the batteries) balances nicely with the feel of the rubberized contouring on the sides and side controls.'

'features a built-in compass and altimeter'

'The device's weight (5.3 ounces, including the batteries) balances nicely with the feel of the rubberized contouring on the sides and side controls.'

'variable-use global positioning device'

'such a huge screen'

'variable-use global positioning device'

'such a huge screen'

'This unit is lightweight, weighing in at 5.3 oz.'

'newly added high sensitivity GPS receiver results'

'It is light weight at just 5.3 ounces so it will fit in your pocket nicely.'

'The eTrex Legend is also equipped with additional memory totaling eight megabytes.'

'This unit is lightweight, weighing in at 5.3 oz.'

'newly added high sensitivity GPS receiver results'

'It is light weight at just 5.3 ounces so it will fit in your pocket nicely.'

'The eTrex Legend is also equipped with additional memory totaling eight megabytes.'

'Thanks to its bright yellow case, eTrex H is easy to find in your boat or backpack.'

'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.'

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

'decent size 2.7 inch'