Samsung is set to officially reveal the Galaxy Note 4 in September at the IFA trade show in Berlin, and has so far managed to do a very good job of keeping the design and specifications a secret from the public, but a slip up on the mobile version of Samsung's own website has revealed a few details ahead of schedule. As previously rumoured, it appears the flagship phablet will indeed launch with a 5.7in, QHD resolution display.

First spotted by Sammobile, a User Agent Profile (UAProf) listing for the AT&T variant of the Note 4, codenamed SM-N910A, appeared on the mobile site last night, revealing the screen size ahead of an official announcement from the company. The listing also revealed the massive 2,560x1,440 resolution, which will compete directly with LG's recently announced G3 smartphone.

Based on previous rumours, the Galaxy Note 4 is expected to arrive with a Qualcomm Snapdragon 805 processor, 3GB of RAM, a 16-megapixel ISOCELL rear camera with optical image stabilisation, and the latest version of Google's Android operating system, as well as the S Pen stylus.

Despite this latest leak, we're still very much in the dark as to the handset's design. Whether Samsung will continue the faux leather look it introduced with the Galaxy Note 3, reuse the dimpled rubberised plastic seen on the Galaxy S5, or reveal an entirely new material remains to be seen. It has also been rumoured that the handset will launch in two versions; a standard model with a flat screen for the masses, and a more expensive curved display model for "niche markets". It's currently unclear whether Samsung will be including the UK in the latter category, as it didn't bring the curved Galaxy Round smartphone to Britain last year.

We'll be at IFA in September, so will be sure to bring you all the news of Samsung's latest phablet when we get it.