Speculation about potential updates in the works for Apple’s next-generation iPhone picked up, ahead of an anticipated iPhone 6S unveiling in September 2015.

According to Bloomberg, Apple has started early production of devices, which feature a screen including the “Force Touch” technology introduced by Apple’s Watch.

Force Touch enables the device to differentiate between “a tap and a press”, enabling users to access different functions based on the intensity of the input.

According to the report, Apple has been working with suppliers for “at least two years” to perfect the technology.

It was suggested that as an incremental upgrade to the current iPhone 6, final assembly of devices is “expected to be smooth”, although the supply of the new screen technology could impact device availability.

A number of other changes have also been suggested.

Externally, it is possible Apple will use a stronger grade of aluminium which is 60 per cent stronger but still lightweight, and which has already been used in the Watch wearable. This may impact device size, although changes are apparently small enough to be largely unnoticeable by users.

Also suggested is a new colour variant – pink (likely to be called “rose gold”, echoing the colour used in Apple’s Watch line).

Internally, the device is likely to gain a faster processor, called A9, alongside 2GB of RAM. The camera is also likely to be upgraded to 12MP.

iPhone 7 camera update
Looking further ahead, Apple is reported to be working on dual-lens cameras for the iPhone 7, having been working on the technology for a number of years.

The breakthrough apparently came earlier this year, when it was reported that Apple had acquired Israeli imaging company LinX Computational.