The 6s may look the same as last year's iPhone, but there are plenty of new features in this phone:

Apple A9 processor with embedded M9 motion coprocessor

16, 64, or 128 GB of storage

4.7-inch 1334 × 750 pixels (326 ppi) Retina HD display with 3D Touch

12 MP iSight camera supporting 4K video recording with 1.22 µ pixels, and a 5 MP FaceTime HD camera

7000 Series aluminum enclosure and Ion-X Glass

802.11a/b/g/n/ac Wi‑Fi with MIMO + Bluetooth 4.2 + NFC + 23-band LTE

Taptic Engine