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Magellan RoadMate 5045
Garmin Nuvi 2450
Garmin Nuvi 2460
Garmin NUVI 3750
Garmin nuvi 1690
Magellan RoadMate 5045-LM 5-Inch Widescreen Portable GPS
Garmin Nuvi 2450 GPS Receiver
Garmin Nuvi 2460LMT GPS Receiver
Garmin NUVI 3750 GPS Receiver
Garmin NUVI 1690 4 4 in  Car GPS Receiver
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Release Date
May 2010
Jan 2011
Jan 2011
Apr 2010
Sep 2009
User interface
Touch Screen
Touch Screen
Touch Screen, Voice Command
Touch Screen
Touch Screen
Map capabilities
Map cartridges / Data cards, Download maps
Map cartridges / Data cards
Map cartridges / Data cards
Map cartridges / Data cards, Download maps
Internal, Map cartridges / Data cards, Download maps
Designation
Automobile
Automobile
Automobile
Automobile
Automobile
Enhanced accuracy
WAAS enabled, EGNOS enabled
Touch Screen
Form Factor
Fixed
Mountable, Portable
Fixed
Fixed
Fixed
Input Method
Touch Screen
Touch Screen
Touch Screen, Voice Command
Touch Screen
Touch Screen, Voice Command
Screen Size
5.0 inch
5.0 inch
5.0 inch
4.3 inch
4.4 inch
Average Rating
 3.9 stars
 3.5 stars
 3.5 stars
 4.2 stars
 3.9 stars
Navigation
100% Positive
66% Positive
34% Negative
100% Positive
Display
100% Positive
100% Positive
54% Positive
46% Negative
Maps
100% Positive
40% Positive
60% Negative
Usability
100% Positive
100% Positive
100% Positive