2K display, metal frame and 2.5 GHz Qualcomm processor
Personally I am doubting this is a Samsung Galaxy S5. It might be a late-revision S4. Samsung is already on record saying that they would be out with a 64 bit processor very soon. The rumor is that the GS5 may have up to a metal frame, 16MP rear-facing camera and even a 4000 mAh battery.
I think the only thing I like about a physical home button (and overall I’d say I definitely do not prefer it, especially with kitkat now) is the ability to wake the phone without having to reach for the power button.