Unwittingly the Samsung's Galaxy Note series phablet has come to the fourth generation. The screen size of the Note has been gradually increased from the original 5.3 inch to 5.7 inch. Surprisingly, the Galaxy Note 4 screen size remained at the 5.7 inch - the same size as the Note 3.
Samsung may find the 5.7 inch screen size is the sweet-spot for its popular Galaxy Note series, hence the fourth smartphone in the series, the Galaxy Note 4 keep the 5.7 inch design. It may have the same screen size as its predecessor, but it's totally different story at the inside.
