I've used  and abused Garmin units GPS II,III,III+ for years.  They're tough
and reliable.

The GPS V is not color.  The Blaupunkt Navigation system is color.  The
Garmin Streetpilot in it's current version is color.

GPS V differs from the previous handhelds by it's autorouting capability.
It will devine a route based on it's database from one waypoint or city to
another.  Garmin.com has details.

No single gps fits all needs.  Some handle topographic information.  Some
have color and high battery drain.  Some are pocketable.  garmin.com also
has a comparison tool to compare the various models.

GPS is invaluable for pinpointing locations and providing directions.  GPS 5
has a passel of other "nifty" features.  garmin.com

The garmin series is a fast initializing 12 channel system that retains lock
quite well.

pensioner (trying to raise his SFC as usual)