It's good to have a galaxy to play with, 'cause we're gonna need a lotta space for all this hardware:

5.1” Super AMOLED display (1920 x 1080, 432 ppi)

16 MP rear-facing camera with 4K video at 30 fps; 2 MP front-facing camera with 1080p video and wide-angle lens

Sensors for fingerprint, heart rate, gestures

2.5 GHz quad-core Snapdragon 801 processor, 2 GB LPDDR3 RAM

16/32 GB internal memory, plus microSD up to 128 GB

LTE, NFC, Bluetooth 4.0 BLE, Micro-USB 3.0, 802.11/ac MIMO Wi-Fi