According to droidlife the pictures below of probably some renders are of the real Samsung Galaxy Note 5, and they have been told the mobile will sport a 4GB RAM , NO SD slot, 32/64/128 GB storage options, and a 3000 mAh non removable battery.
The back of the Note 5 is a little curved to get a better grip of it and it is made of glass as the S6 edge.
You can notice on one of the screen shots you can see the Air Command ( customizable) with some apps like Action memo, Smart Select, Screen write, S Note, Settings and Instagram.
At the bottom you can see the S Pen (spring loaded), USB port, single speaker, and headphone jack.
The Galaxy Note 5 ,the Galaxy S6 edge + and the Gear A, will be unveiled next week August 13 at the Alice Tully Hall, Lincoln Center in New York . Doors open at 10:00. Presentation begins at 11:00 (EDT) Samsung will live stream the event on its Youtube channel: www.youtube.com/samsungmobile