I am looking for a computer with GPS that can be used on 2 bikes. What unit would be the easiest to have this setup?

Right now I am looking at a Garmin 520 Edge Plus but I can't find any mention as to whether it supports using it on 2 bikes? I am primarily leaning towards the GPS functionality as I would be doing cycle touring with it on one bike. My other bike is a road bike so I would use it to keep track of my rides, distance, cadence etc. Any thoughts on how well it functions in this regard?

Any other comparable units I should look at in this category?