The first thing that is different with the Note 6 is the existence of the USB Type-C connector, a first of its kind with Samsung flagships. You have the regular S-Pen, earphone jack port, and mono speakers placed below.
Did you notice that the screen-to-body ratio and curved frame sides bear similar resemblance to the S7 Edge? Yes, it does, meanwhile, the back houses a slight camera bulge just like the way it is on the S7. I also noticed that you have a larger selfie camera sensor on the right and what could be an LED flashlight or an IRIS SCANNER (My bet is on the Iris Scanner, I think Samsung will stick with their illuminated selfies, just like the one on the S7). Lastly, you have the regular proximity sensors, volume buttons, and home button placements.
Dimension wise, the phone is a little bit more than the Note 5. Rumors have it that the Note 6 might come with a 6.04 x 2.90 x 0.31 inches (153.5mm x 73.9mm x 7.9mm) as opposed to the Note 5’s 6.03 x 3.00 x 0.30 inches (153.2 x 76.1 x 7.6 mm).