Apple shifted 47.8 million iPhones throughout the last three months of 2012, one million less than analysts had predicted.
The computer giant's shares fell 3% to $517 (£326) in extended trading after the release of the report.
More top news
Children in the North and the Midlands are less likely to get a good secondary education than those in the South, schools inspector to say.
Mild in the south but colder in the north tonight and turning frosty and icy - before rain moves in.
ITV News' Tom Brady speaks to billionaire philanthropist Bill Gates about clean energy sources and a new $7bn green tech research fund.