Samsung Rolls Out Update for the Galaxy Note 4 - UNBOX PH
Easy on the eyes, dpi setting. Found in developer options, changed minimum width from 411 to 512. I believe this properly utilizes the high resolution display of the Note 9. : r/GalaxyNote9
Samsung releases Marshmallow for the Galaxy Note 4 internationally - SamMobile - SamMobile
Samsung Galaxy Note4 specs - PhoneArena
Leaked Images Show Us Android 6.0.1 Running On Galaxy Note 5