The OnePlus 3T is a great phone, but ultimately it’s just a refinement of the OnePlus 3 rather than a true generational upgrade.Despite launching less than a year later the new number in the OnePlus 5’s name suggests it has loftier ambitions, but can it deliver on them?We’ve put the OnePlus 5 and the OnePlus 3T head to head to show you just how much...