Perhaps the most obvious and arguably the easiest upgrade for Apple to introduce, the iPhone 7 should see a sharper screen grace its frontage. At present, iPhone screens are hardly bad but, at 326ppi, they lag well behind offerings from the likes of Samsung, LG and Motorola, particularly when it comes to displaying HD content. Whilst an UltraHD display seems a way off even if Sony managed to cram a 4K corker onto its Xperia Z5 Premium it appears increasingly likely that Apple will add at least enough pixels to take the iPhone 7's resolution up to QHD, matching its price-point competitors. Will the dimensions change? That seems unlikely, given how static the iPhone lineup has remained in recent years, and the fact that any iPhone 7 Plus model has little room to expand before becoming a baby iPad. As ever, though, when it comes to pre-launch Apple speculation, several surprises are surely in store. What do you want to see on Apple's iPhone 7? Let us know in the comments below.