What’s the difference between 60Cx and 60CSx?
The main difference is the electronic compass and barometric sensor which are coming with the GPS Map 60CSx
All the GPS receiver can show you whether you are going north or other direction. But, you have to keep moving. With the electronic compass there is no need. You can stay still and the compass will point north.
Thanks to this the reading of altitude (elevation) should be more precise.