Sales of Apple iPhones dropped at the end of last year, as the tech firm's roll out of new artificial intelligence (AI) features was met with a lukewarm response. Chief executive Tim Cook said the new features helped to drive stronger sales in the countries where they were available,

Apple CEO Tim Cook told analysts that sales of iPhones in the markets where Apple Intelligence was available fared better than markets where it was yet not available. "We did see that the markets where we had rolled out Apple Intelligence,