Apple sold a total of nine million of its iPhone 5s and iPhone 5c models in the three days after the launch of the new iPhone models on September 20, the company has said.
Demand for the iPhone 5s has "exceeded the initial supply", the company said, adding that many online orders are scheduled to be shipped "in the coming weeks".
Apple did not detail what proportion of the nine million handsets sold where the iPhone 5s or iPhone 5c models, but last week mobile operators in the UK were voicing their frustration at the short supplies of the premium iPhone 5s model, while the 5c was widely available.
Tim Cook, Apple's CEO said nine million was a new record for first weekend sales of an iPhone. "While we've sold out of our initial supply of iPhone 5s, stores continue to receive new iPhone shipments regularly. We appreciate everyone's patience and are working hard to build enough new iPhones for everyone."
The company also said that 200 million iOS devices are now running iOS 7, which is compatible with iPhone 4 handsets and later, iPad 2 tablets and later, and iPod touch (5th generation) devices.
To compare, last year Apple sold five million of its iPhone 5 model in the first three days after its launch, while 100 million iOS devices were updated to iOS 6 in the same period.
The iPhone 5s and iPhone 5c are available in the US, Australia, Canada, China, France, Germany, Hong Kong, Japan, Puerto Rico, Singapore and the UK.