The Note5's/Galaxy S6 edge's main camera revealed to be a Sony IMX240 unit, Samsung ISOCELL up front
Note5 & Galaxy S6 edge+ camera detaisl — Sony's IMX240 sensor for the main camera and an ISOCELL unit for the front shooter
It'll be interesting to see if Samsung will once again push one of its own 16-megapixel ISOCELL sensors for inclusion with the Note5. Last time around, with the Galaxy S6, that particular unit seemed to only become available with latter batches of the device, and people generally felt that it is inferior to Sony's (though we haven't personally checked). In any case, if you hurry up and snatch a Note5 or Galaxy S6 edge+ unit soon, it's likely that the IMX240 is what you'll get.
Things that are NOT allowed: