Apple sells blockbuster 13 million iPhone 6s, 6s Plus units in launch weekend

"Sales for iPhone 6s and iPhone 6s Plus have been phenomenal, blowing past any previous first weekend sales results in Apple's history," Apple Chief Executive Tim Cook said. "Customers' feedback is incredible and they are loving 3D Touch and Live Photos, and we can't wait to bring iPhone 6s and iPhone 6s Plus to customers in even more countries on October 9."

The company noted that sales completed by Saturday, Sept. 26 will be included in Apple's 2015 fourth fiscal quarter results. Beginning on Sunday, Sept. 27, completed sales will be included in Apple's 2016 first fiscal quarter results.

With 13 million units sold in three days, Apple easily trounced last year's record of 10 million units sold in the launch weekend for the iPhone 6 and iPhone 6 Plus. But this year's roll-out had one key advantage over last year's: China.

iPhone sales continue to post tremendous growth in China, and Apple capitalized on this by making the country one of the initial launch territories. The device also debuted in Australia, Canada, France, Germany, Hong Kong, Japan, New Zealand, Puerto Rico, Singapore, the U.K., and the U.S.

Apple had already signaled last week that the iPhone 6s and iPhone 6s Plus were off to a record breaking start in terms of preorders, on pace to eclipse last year's record. Sales of 13 million units are likely to please Wall Street, where investors had expressed concern that this year's "S" upgrade cycle might not appeal to consumers.

Though it has an appearance largely identical to last year's model, the new iPhone 6s series boasts a number of under-the-hood improvements, most notably a new pressure-sensitive 3D Touch display, and accompanying Taptic Engine for haptic feedback and a different feeling vibration motor. Apple has also increased the rear camera to 12 megapixels, added a new Retina flash for selfies taken with the forward facing camera, and greatly improved speed and performance, thanks to a new A9 processor with 2 gigabytes of RAM.

The iPhone 6s has the same 4.7-inch display as last year's iPhone 6, while the larger iPhone 6s Plus remains at 5.5 inches. Both models are available in a new rose gold color option, joining space gray, silver, and gold.