I've owned the Zoom H5, H1N, H1 Essential, and I currently own the F3
Compared to the H5, the self noise seems lower, handling noise is a little worse. The mics are much larger and the recorder body is substantially larger but a little lighter. The sound is more detailed. The mics also seem more sensitive.
Display is an improvement. Like that they kept AA batteries instead of some non-replaceable lithium batteries
It's plastic bodied and the mics are rather exposed with no cage, so try not to drop it. Otherwise recommended