The OnePlus 2 won't just be faster than its predecessor, but it could be slightly larger, too. According to one source who claims to be familiar with OnePlus' plans for the device, the handset will carry a 5.7-inch display similar to that of the Galaxy Note 4.

KJuma has uploaded an apparent "spy sketch" of the OnePlus 2 to Chinese micro-blogging network Weibo, and claims its display will measure between 5.5 and 5.7 inches diagonally. Last year's OnePlus One had a 5.5-inch display, which suggests the next model could be a little larger.

It's unclear what kind of resolution this display will be packing, but its larger size would give the OnePlus 2 a better chance of competing with flagship phablets like the Galaxy Note 4. However, it could also put off some consumers who don't like their smartphones to be too large.

If OnePlus could employ an "edge-to-edge" display and make the bezels around it as narrow as possible, however, the actual size of the handset's chassis may not have to increase that much. So although the display could be 0.2 inches larger, the OnePlus 2 itself may be around the same size.

KJuma adds that the OnePlus 2 will look similar to the OnePlus One, though there will be a number of subtle design changes — like twice as many holes for the speaker, and a thinner form factor that could measure as little as 5mm to 6mm.

OnePlus has already confirmed that its next device will be powered by Qualcomm's latest Snapdragon 810 processor, and will be one of the first Android-powered smartphones to employ USB-C technology. The device will get its official unveiling in virtual reality on July 27.