http://arstechnica.com/gaming/2016/08/ps4-slim-specs-price-release-date/
"Sony will have not one, but two consoles on show at its upcoming PlayStation Meeting event on September 7βand the first appears to have leaked online. A thinner, rounder PlayStation 4 Slim was spotted for sale on classified listings site Gumtree (now removed) via local retailer, which claimed it was due for release in three weeks. Twitter user shortman82 has since purchased the unit, unboxed it, and slapped a load of photos online.
The purported PS4 Slim looks considerably thinner than the original PS4, which was already a small console. The same cleaved-parallelepiped aesthetic remains, but the corners have been rounded off, while the glossy plastic section that covered the hard drive on the original PS4 has been removed entirely. While that's good for fans of fingerprint-free gadgets, it does raise questions as to whether the hard drive will be replaceable in the PS4 Slim, particularly as the listed model (CUH-2016A) only sports 500GB of storage.
Sony has typically removed features from its consoles to make them cheaper to manufacture and thus cheaper to sell to consumers (remember all the media card slots on the original PlayStation 3?), so such a move wouldn't be unprecedented.
Elsewhere, it appears the capacitive power and eject buttons have been replaced with physical ones, while Sony has also removed the dedicated optical audio output on the rear. Ethernet and HDMI remain, along with the lesser-used camera port from the original PS4.
While there's a slim chance (pun very much intended) that the pictures of the new PS4 are fake, the leak ties up with a recent report from the Wall Street Journal. The publication says sources "familiar with the matter" claim Sony will introduce two consoles at its PlayStation Meeting event in September: the PS4 Slim and the highly anticipated PlayStation "4K" Neo. Sony confirmed the existence of the PS4 Neo in June, but has yet to detail its specifications. Several sources claim that it has a faster CPU, GPU, and memory, which will allow it to play certain games in 4K resolution.
The PS4 Slim follows in the footsteps of Microsoft's Xbox One S, a dramatic redesign of the Xbox One console. As well as shrinking the overall size of the console down, Microsoft integrated the power supply, added a 4K Blu-ray drive, and enabled HDR rendering in certain games."