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Garmin nuvi 855
Tomtom GO 730
Kenwood Kna-g610
Pioneer Avic-u220
Tomtom GO 920
Garmin nuvi 855 GPS
Tomtom GO 730 GPS
Kenwood Kna-g610 GPS Receiver
Pioneer Avic-u220 GPS Receiver
TomTom GO 920 T GPS Receiver
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Score
Release Date
Oct 2008
Mar 2008
Mar 2010
Jan 2010
Jul 2007
Included Software/Maps
City Navigation Maps, North America Maps, USA Maps, Canada Maps, Puerto Rico
USA Maps, Canada Maps
USA Maps, Canada Maps
USA Maps, Canada Maps
North America Maps, USA Maps, Canada Maps, Europe Maps, Germany Maps, Ireland, Great Britain, France Maps
Map capabilities
Internal, Map cartridges / Data cards
Internal
Internal, Download maps
Designation
Automobile
Automobile
Automobile
Automobile
Automobile
Form Factor
Fixed
Fixed
Fixed
Fixed, Plug-in
Fixed
Input Method
Touch Screen, Voice Command
Touch Screen
Touch Screen, Voice Command
Screen Size
4.4 inch
4.3 inch
4.3 inch
Average Rating
 2.5 stars
 3.8 stars
 n stars
 n stars
 n stars
Display
100% Positive
100% Positive
83% Positive
17% Negative
Navigation
100% Positive
80% Positive
20% Negative
100% Positive
Maps
100% Positive
100% Positive
100% Positive
Usability
100% Positive
100% Positive
50% Positive
50% Negative