With the method of preparation being equivalent, sealant will normally outlast wax but wax will always look add depth while sealant only offer gloss. So if I apply too much sealant, my white car looks like a very shiny plastic (haha) while apply many layer of wax will not have the same problem.
Here is my experience with different type of product, all applied after claying (without paint cleaners). I just checked visually for beading or sheeting effect.
Mothers cleaner wax = 2-3 weeks
Meg's NXT 2.0 = 1 month
Klasse AIO top up with Klasse SG sealant = 2 months
Duragloss 501 top up with Klasse SG sealant = still beading after 2 weeks ago.
Please remember this is only my experience and it is in no way scientifically tested. Sometimes its just the weather.
my advise for a lazy guy is to apply sealant then top up with wax regularly on the horizontal panel (bonnet etc). I usually leave the vertical panel (doors) alone because not much sheeting/beading needed.
next I am gonna get a 845 insulator wax to play with