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Magellan RoadMate 1700
Garmin Oregon 550
Garmin Oregon 450
Garmin Nuvi 275
Garmin nuvi 5000
Magellan RoadMate 1700 GPS  Vehicle  7  LCD
Garmin Oregon 550T GPS
Garmin 450t GPS Receiver
Garmin Nuvi 275T GPS
Garmin nuvi 5000 GPS
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Release Date
Aug 2009
May 2009
Dec 2009
May 2009
Jul 2008
Included Software/Maps
USA Maps, Canada Maps, Puerto Rico
USA Maps, USA TOPO
USA Maps, North America Maps
Europe Maps, North America Maps
MapSource City,North America Maps
Map capabilities
Map cartridges / Data cards
Map cartridges / Data cards
Map cartridges / Data cards
Internal, Map cartridges / Data cards
Internal
Receiver type
20 Channels
12 Channels
12 Channels
12 Channels
Designation
Automobile
Automobile
Outdoor
Automobile
Automobile
Enhanced accuracy
WAAS enabled
WAAS enabled
Touch Screen
WAAS enabled
Touch Screen
Form Factor
Fixed
Handheld
Handheld
Fixed
Fixed
Input Method
Touch Screen
Touch Screen
Touch Screen
Touch Screen
Keypad,Voice Command
Screen Size
7.0 inch
3.0 inch
3.0 inch
3.5 inch
5.2 inch
User interface
Touch Screen
Touch Screen
Touch Screen
Touch Screen
Touch Screen
Average Rating
 3.8 stars
 4.5 stars
 2.0 stars
 2.0 stars
 3.3 stars
Display
96% Positive
4% Negative
100% Positive
100% Positive
75% Positive
25% Negative
95% Positive
5% Negative
Navigation
50% Positive
50% Negative
100% Positive
100% Positive
100% Positive
33% Positive
67% Negative
Usability
72% Positive
28% Negative
100% Positive
100% Positive
100% Positive
75% Positive
25% Negative
Maps
100% Positive
100% Positive
100% Positive
75% Positive
25% Negative
100% Positive