The technology giant sold fewer models than it had the previous year, but still reported a record $20 billion (£14 billion) in quarterly profits, which was pushed by a strong growth in both Europe and Japan.
The firm's chief executive Tim Cook said demand for the expensive iPhone X - which was launched in November and saw its price start at around $1,000 - was surpassed their expectations.
It was added that quarterly sales for Apple climbed by 13 percent from the previous year to a record $88.3 billion, and despite an initial fall, shares still rose more than three percent in after-hours trade.
The iPhone X's release last year coincided with the 10th anniversary of the device.
Mr. Cook noted that although the overall number of iPhones has slipped by one percent, the iPhone X was the top-selling Apple handset each week since its launch.
Still, the company also delivered a sales forecast which was weaker than expected for the coming months.
It follows a previous report by Apple Insider claiming KGI Securities' analyst Ming-Chi Kuo has said the disappointing sales could lead to the cancellation of the latest model.
Kuo - who has revealed Apple's plans in the past - said it was because of the disinterest in China as the consumers are removing too much usable space, especially when the iPhone 8 Plus delivers more.