The forthcoming iPhone 7s will be slightly bulkier than the current iPhone 7, reports suggest, due to Apple's decision to switch from aluminium to a glass frame.
Case-makers claim that the iterative update to the iPhone 7, which is said to retain a broadly similar design, will be around 0.1mm thicker.
Want more iPhone 7s news? We've colllated all the speculation for our rumours round-up.
The change to a glass construction will purportedly allow Apple to incorporate wireless charging in an iPhone for the first time ever.
The iPhone 7s is believed to feature an inductive charging plate inside, allowing the phone to power up by being placed on a dedicated charging mat.
This functionality is also set to come to the super-sized iPhone 7s Plus, as well as the flagship iPhone 8.
All three of Apple’s new iPhones are expected to launch in September.
The iPhone 7s and iPhone 7s Plus are likely to feature minor internal improvements, but no major design changes.
The iPhone 8, however, is set to offer a radical new, bezel–free design, along with 3D facial recognition and a vertical dual lens camera that will work with VR headsets.