The latest versions of Apple's flagship device – the iPhone 6s and iPhone 6s Plus – have been available to customers for nearly two months now.
These have been widely hailed as being the most advanced iPhones to date, with new features including 3D Touch, which allows the user to navigate several different types of content more conveniently. For example, a light press of an icon can bring up a preview of an email, web page or almost any other form of content, while a deeper press will completely load the content.
Uptake of these products has been high – and Apple has posted record fourth quarter profits on the strength of the launches. The company posted quarterly revenue of $51.5 billion (AUS$72.38 billion) and quarterly net profit of $11.1 billion.
International sales accounted for 62 per cent of this revenue growth – particularly iPhone sales, as well as those of the Apple Watch and Macs.
Apple chief executive officer Tim Cook praised the new iPhones for heading up his firm's "strongest product lineup yet, including iPhone 6s and iPhone 6s Plus, Apple Watch with an expanded lineup of cases and bands, the new iPad Pro and the all-new Apple TV".
"This continued success is the result of our commitment to making the best, most innovative products on earth, and it's a testament to the tremendous execution by our teams," he continued.
With the iPhone 6s and iPhone 6s Plus incorporating advanced features such as 12 megapixel iSight and five megapixel FaceTime HD cameras, it is perhaps unsurprising they have proven so popular. Features that have been a mainstay of the series such as Touch ID, LTE and Wi-Fi also run faster on the new products.
However, some smartphone owners may be holding out on purchasing the iPhone 6s with the intention of waiting for next year's Apple product launch – expected to be the iPhone 7.
The iPhone 6s has barely hit the shelves, but speculation is already rife as to what features will be included with the next model.
Some commentators have observed that the iPhone 6s and 6s Plus have a greater capacity for water resistance than their predecessors, which has prompted speculation that the iPhone 7 could build on this to be the first Apple smartphone to be completely waterproof.
Wireless charging is also being touted as a possibility for the next iPhone – and Apple is already behind the trend on this feature, as its biggest rivals Samsung, Sony and LG already offer devices with this functionality.