Why make a phone so slim, as to make the phone unusable? My guess is that they will drop WiFi connectivity.
Sub 7mm phones are nice but such a big Mediatek chip with only 2000mAh won't get owners anywhere. They should consider a snapdragon even 615 to get a normal battery endurance.
If you look at the text in the large zero it says "2.5D" right under "2015 R7", so I think the display could be expected if not in this device, at least in 2015...
So much sacrificed for a barely noticeable difference in thickness.