The main differences between S8 and S7:
1.S8's 5.8-inch (right Angle)\/ 5.6-inch (rounded corners) hyperbolic Super AMOLED screen; The S7 has a 5.1-inch Super AMOLED screen.
2.S8's CPU is 2.35GHz and 1.9GHz octa-core processor; The S7 has a 2.15GHz 1.6GHz CPU and a quad-core processor.
3. The S8's ROM memory is 64GB; The S7 has 32GB of ROM memory.
4. The rear camera of the S8 is 12 million pixels of full pixel dual-core, and the front camera is 8 million pixels of intelligent focus; The S7 has a 12-megapixel rear camera and a 5-megapixel front camera.
5.S8 also supports iris recognition and facial recognition to protect your privacy.