Both S5 and S6 are great (actually there's not much difference) as long as you don't try to mop the floor with it (I haven't). Setting up red zones with the ap

Both S5 and S6 are great (actually there's not much difference) as long as you don't try to mop the floor with it (I haven't). Setting up red zones with the app is the most important part of making them useful.