The popular Note range of smartphones-come-phablets are likely to gain a new model over the next couple of months, the Samsung Galaxy Note 4. The latest of Samsung's larger smartphones is anticipated to be unveiled in September 2014 which is almost exactly 12 months since the Note 3 made its debut.

It's been reported that a tweet from an official Samsung twitter account said that 'Security can be improved using features unique to us'. Alongside the tweet was an image of a Note-sized smartphone featuring an eye on the screen with the caption 'Unlock the future'. This has led to a frenzy of speculation that Samsung could be introducing some sort of eye scanning technology which would enable the Galaxy Note 4 to be unlocked using a scan of the user's retina. This would certainly be a massive coup for Samsung as smartphone security continues to be a real concern.

Recent speculation has also lead us to believe that the Note 4 will feature a UV sensor, with functionality built into the S Health App to warn that you should be stepping into the shade.

As well as the possible eye scanner and UV sensor, there's also the usual rumours and reports on what specifications the Note 4 will offer. It's thought that it will come with a screen size somewhere from 5.5-5.7 inches in size and is likely to boast a QHD (2k resolution) Super AMOLED display.

There's a bit of a debate regarding the processor which could either be a quad-core Snapdragon 805 2.5GHz CPU or even an octa-core Exynos 5433 processor. Whichever, you can guarantee it will process your requests lightening fast.  We could also see a very decent 3GB of RAM and 32GB of built-in storage. It's likely that the battery  will be super-sized - perhaps 3,700mAh - as befits a phone with a screen this size.

The main rear-facing camera is thought to be a superb 16-megapixel snapper which has the capabilities to record video in 4K and there will be a 2-megapixel camera on the front for super sharp selfies.

The Samsung Galaxy Note 4 is expected to be launched at this year's IFA (Consumer Electronics Event) which will take place in Berlin between the 5th and 10th of September. Of course, we'll be keeping out ears to the ground so will bring you the latest as we have it.