Apple reported falling sales of the iPhone this week. A category-defining product since its launch in 2007, other smartphone makers have largely been playing catch up. The company is blaming a slowdown in China for the fall in revenues, but it also faces serious competition on price and design from China and beyond. Jen Copestake from BBC Click assesses Apple’s dwindling dominance and what that could mean for the company and its customers.

Producers: Duncan Barber and Philly Beaumont.