More details of Sony Xperia Z4 leak (Updated)

According to one of the esato forum leakers Sony Xperia Z4:
- is quite the same size as Xperia Z3, but a little thinner,
- the camera makes better photos,
- the edges of the phones are shiny (not only the back and the front have a glossy look, the edges too!),
- the battery is between 3000-3100 mah
- there is one slot for microSD card and simcard.

That's it, what do you think, is the Z4 a true step forward compared to Z3?


Update: Compare the picture taken by Z4 and Z3:

Source: XperiaJunkie @ esato forum