eTrex Specifications
Navigation Features
Waypoints/icons: 500 with name and graphic control
Tracks: Automatic track log; 10 saved tracks let you retrace your path in both directions.
Route: 1 reversable route with up to 50 waypoints.
Trip Computer: Current speed, average speed, time of sunrise/sunset, resetable maximum speed, trip timer,and distance.
Map Datums: More than 100.
Position Format: Lat.Lon, UTM/UPS, Maidenhead, MGRS and other grids.

GPS Performance
Receiver: Differential ready, 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites to compute and update your position
Acquisition times:
Warm:
Cold:
AutoLocate:
15 seconds
45 seconds
2 minutes
Update Rate: 1/second continuous
Accuracy:
Position:
Velocity:
15 meters RMS*
0.1 knot RMS steady rate
Dynamics: 6g's
Antenna: Built in patch

Power
Source: 2 AA batteries (not included)
Battery Life: Up to 2 hours

Physical
Size: 11.2 x 5.1 X 3.0
Weight: 150 g with batteries.