The LG G4 rumors are heating up in the rumor mill with suggestions that it will adopt a slight curve, similar to the LG G Flex2. Leaked renders of the device and now cases for it confirm that the LG G4 will indeed have a slightly curved screen, similar to the LG Magna and Spirit we saw at the MWC and not nearly as curved as the G Flex2. The cases are even on sale at a Chinese retailer site. Unfortuanately there are no product dimensions to confirm the rumored size of the LG G4, 148.9 x 76.5 x 9.9mm. Leaked render LG G4 cases Specs are unconfirmed, but allegedly the new phone will add a fingerprint reader on the back, specifically on the Power key. A stylus may make a surprise appearance too. The exact screen size is unknown but is should be between 5.3" and 5.7' (both the LG G3 and G Flex2 are 5.5") and it should have 1,440 x 2,560px or 1,620 x 2,880px resolution. The camera should get an upgrade to 16MP or 20MP, while the chipset is expected to be a Snapdragon 810. Source 1 (in Chinese) Source...
Source: http://www.gsmarena.com/lg_g4_renders_cases_confirm_slightly_curved_screen-news-11522.php