Is Apple intentionally slowing down your old iPhone? The data suggests not

Data shows consistent performance for iPhone 5S, iPhone 6, iPhone 6S and iPhone 7 with successive iOS updates, but that doesn't mean the phones don't feel slower

It's a perennial question asked in offices, pubs, shops and across the internet every year in the run up to the launch of a new iPhone: does Apple slow down older iPhones to make you buy new ones.

On the face of it the question seems either completely daft - imagine if it was discovered that Apple really does hobble older iPhones, it would be VW's dieselgate for the smartphone - or simply a summation of the feeling that something is changing about the ageing phone you have in your pocket that really does feel slower.