Apple has officially announced opening weekend sales of the new iPhone 5C and iPhone 5S, three days after the smartphones went on sale.

The new-generation iPhones were among the most highly-anticipated devices of this year and launch weekend sales numbers prove the smartphones' popularity. The iPhone 5S and iPhone 5C topped a record-breaking nine million units since their commercial debut on Friday, Sept. 20.

"This is our best iPhone launch yet - more than nine million new iPhones sold - a new record for first weekend sales," boasted Apple CEO Tim Cook in the press release. "The demand for new iPhones has been incredible, and 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 iPhones for everyone."

"In addition, more than 200 million iOS devices are now running the completely redesigned iOS 7, making it the fastest software upgrade in history," added the company.

The iPhone 5S and iPhone 5C made their debut so far in the U.S., Canada, Australia, China, France, Hong Kong, Japan, Puerto Rico, Singapore and the UK. According to Apple, the iPhone 5S saw great demand that exceeded the initial supply. Consequently, many online orders will be delayed, but are scheduled to ship in the coming weeks.

Both the iPhone 5S and the iPhone 5C stirred a lot of waves even before their official unveiling. The lower-end model, the iPhone 5C, was expected to launch as a plastic iPhone with budget-friendly pricing. Apple did indeed ditch the metal casing for plastic with the new iPhone 5C, but the smartphone is not exactly as cheap as people expected.

The iPhone 5S, meanwhile, has been in the spotlight mostly due to its fingerprint scanner called Touch ID, which aims to provide more security to its users. Both smartphones proved to be highly successful upon their debut and the champagne/gold color option was reportedly the most popular.

Apple has also announced that its new iTunes Radio service has already reached more than nine million unique listeners. The most popular track so far, according to the company, is Drake's Hold on, We're Going Home.

For the sake of comparison, the iPhone 5 sold over five million units in its opening weekend last year, which means that the new iPhones nearly doubled that record.