Yesterday, we were treated to a leaked photo of what looked like a prototype Galaxy Note 7, complete with the test unit number at the top. The image depicted a tallish phablet with curved edge display, and Samsung's signature home key underneath it.
Today, a few more images from the eventual Note 7 prototype have surfaced, and they show the working prototype with what seems to be a TouchWiz overlay low battery warning notifications. We can also see more clearly all the openings above the display, confirming that there might indeed be an extra set of sensors or cameras for iris scanning on the right of the earpiece slit. On the left we seemingly have the usual set of a front-facing cam, light and proximity sensors, but those two openings on the right are something else, which could only be an iris scanner, as we explain in detail here.
As a reminder, the Note 7 will most likely be announced August 2, and should sport a Snapdragon 821 or Exynos chipsets, 5.8" Quad HD AMOLED screen, 4/6 GB of RAM, and the same Dual Pixel camera that is on the Galaxy S7 edge. The S Pen stylus would be taught new tricks, and the Note 7 could start off north of $800 - that's most of what we know for now.