First of all Why not Note 6??
If you count the Note Edge as a separate device rather than a variant of the Note 4, then the Note 7 is the 7th Note.
Note, Note 2, Note 3, Note 4, Note Edge, Note 5, Note 7.
The S Pen—the signature of the Galaxy Note series—provides an experience that extends beyond traditional writing and navigational capabilities.
With a smaller pen tip and increased pressure sensitivity, the S Pen of the Galaxy Note7 lets u feel the ease and accuracy of a real pen more so than any previous model. Furthermore, it is the first to be water resistant.
Its new Screen off memo on Always On Display feature provides users with a way to better remember important events and tasks, while the new, integrated Samsung Notes app lets them manage all their S Pen creations from one convenient location. New Air Command functions like Translate and Magnify expand the device’s usability. And, with more pen styles and brush types, the new S Pen lets users unleash their creativity to better express themselves.
Check out more of the improvements of the latest S Pen and how they bring the Galaxy Note7 to life, providing unsurpassed convenience so users can do even more, faster than before.