Tired of recording 'just' 1080p video on your iPhone while your friends produce clips in glorious 4K? You won't have to look on with envy for much longer, if the latest rumors are on the mark. A tipster on China's Sina Weibo has posted what appear to be leaked details of the next iPhone's rear camera, and it'll reportedly jump to 12 megapixels with 4K video recording. There's no guarantee that this is in the cards, but it jives with earlier claims that Apple's future handset will focus on camera upgrades. You're not likely to see design changes, if 9to5Mac's photos are accurate, so photographic improvements like this will likely be more important this time around.