The quick autofocus is fantastic. It achieves 12MP with a 4:3 picture vs. the 16MP with a 16:9 picture on the GS6. You'll notice the slight difference in resolution in you zoom in dramatically, so other than that - it's not that noticeable. The low light picture taking is also great - I'm actually a little amazed at how much light the sensors pick up from a low light source - more than eyesight oftentimes. Overall, it's a better camera than the one on my GS6 edge. The autofocus and low light is no joke.