You place a Note 4 next to an iPhone 6. They look very close, especially the metal band design. The backs and screens are different but they do bear some similarities.
You'll see the same with a Note 3 and IP6 next to one another. Why not criticise Apple for making the iP6 look like the Note 3?

Samsung is clutching straws, they have simply ran out of things to add to their newest models.
So the improved QuadHD screen, the latest Qaulcomm SOC, better cameras (higher res/better low-light performance), increased S-Pen sensitivity for handwriting/graphics, unrivaled LTE support, 802.11 2.4GHz/5GHz + MIMO wifi, full ANT+ support for wearables/peripherals, or fast charging aren't enough?

Btw, the European Note 4s definitely have the Ultra Power Saving mode.