A new report from mobile analysts at Juniper Research estimates that 320.3 million smartphones were shipped worldwide in the first quarter of this year.
That's a year-on-year drop of almost 6%.
Apple says its quarterly sales until 26th March 2016 were $50.6 billion (£34.7 billion), a year-on-year drop of 13%.
It’s the first time since 2003, before the iPhone was released, that the company’s quarterly sales have fallen.
Podcast - 15th January 2016
Iain Graham, James Rosewell and Mark Bridge return to review their mobile industry predictions from last year. Which mergers, partnerships and developments did they forecast correctly... and which didn’t work out as planned?
Later in the programme, the team anticipates some of the topics that will be hitting the headlines during 2016.
First Chief Operating Officer since Tim Cook
Apple has named Jeff Williams as its new Chief Operating Officer.
The role was previously held by Tim Cook until his promotion to CEO in 2011.
In-store previews available from 10th April
The Apple Watch, originally announced in September last year, is to go on sale in Australia, Canada, China, France, Germany, Hong Kong, Japan, the UK and the USA from Friday 24th April.
It’s a companion device for customers with an Apple iPhone 5, iPhone 5c, iPhone 5s, iPhone 6 or iPhone 6 Plus.