Garmin: GEKO, etrex, gps60 o gpsmap 60?

[lolly]

Hi all!
it's my first gps.

i love navigation, and the gps i need it's only a gps to use with roadbook and map.

i've found the 4 on the title, and are from 90 pound to 260 pound.

but i don't understand what really change from one to another.

anyone can help me?

 

[lolly]

finally i've bought the gps 60, the simplest! with a touratech handlebar