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Garmin eTrex 30
Garmin GPSMAP 62
Garmin GPSMAP 78
Sony GPS-CS3KA
Garmin eTrex30 - 2.2 in. Handheld GPS Receiver
Garmin GPSMAP 62s GPS Receiver
Garmin GPSMAP 78S 2 7 in  Handheld GPS Receiver
Sony GPS-CS3KA Handheld GPS Receiver
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Release Date
Aug 2011
Jul 2010
Apr 2010
Jan 2009
Form Factor
Handheld
Handheld
Handheld
Handheld
Map capabilities
Internal, Map cartridges / Data cards
Map cartridges / Data cards
Designation
Outdoor, Hiking
Outdoor
Outdoor
Marine
Enhanced accuracy
WAAS enabled
WAAS enabled
Input Method
Touch Screen, Keypad
Keypad
Keypad
Screen Size
2.2 inch
2.7 inch
2.7 inch
User interface
Touch Screen, Keypad
Keypad
Keypad
Average Rating
 n stars
 n stars
 n stars
 n stars