Used two own
The older model that was white with the external antenna. (Dont Remember the model number) First One
Garmin GPS 12
Garmin 3600
Now own
Garmin M4 - Love it
Vista etrex
Rino 110
2 - Rino 530 Hcx
Garmin 60CSx
The 530Hcx, 60 CSx, and M4 are awesome units.