OnePlus only recently released an upgrade to its OnePlus 3 in the form of the OnePlus 3T, but that hasn't stopped rumors for the next "flagship killer". Speculations are rounding up and starting to appear, along with verdicts from fans as to what we might see on the next OnePlus smartphone. So, here is a run down of everything we've heard so far and what we expect to see.

OnePlus 4/5: The design

Size reduction to 5.3-inches proposed and resolution increase to Quad HD claimed. There has been a recommendation on Weibo that the OnePlus 4 must sport a glass-made body, which is something the company tried once on the OnePlus X. Samsung uses a mix up of glass and metal for its current Galaxy S7 and S7 edge, and Google added a glass element to its Pixel phones too so the glass isn't an unreasonable suggestion to choose over metal.

OnePlus 4/5: Camera

OnePlus 4 is said to feature a dual-camera setup. Several companies have already taken this way, all of which use different technologies in order to offer different features. Huawei sports an RGB and also a monochrome sensor for example, while LG has a standard lens and a wide-angle lens.

OnePlus 4/5: Hardware

Claims suggest the OnePlus 4 will power by Qualcomm Snapdragon 830 or 835 processor. Comes with 6GB or 8GB of RAM and 128GB of storage. The SD835 chip is final in 2017 and it could feature Quick Charge 4.0, but Qualcomm has not confirmed exactly when the chip will be ready as yet. Maybe, it isn't in available time for the OnePlus 4 and we might end up with two devices next year as well, or perhaps OnePlus will hold off until it is.

OnePlus 4/5: Release date

It could be May or June release expected. OnePlus revealed the OnePlus 3 on 14 June 2016 then, the OnePlus 2 on 28 July the year before and the original OnePlus was on 23 April 2014, meaning there isn't a specific release pattern for OnePlus unlike the company's biggest rivals, Apple, and Samsung.