The iPhone 6s and 6s Plus introduce the first new method of interaction since the touchscreen: 3D Touch. It’s essentially the same Force Touch sensation found in the Apple Watch and recent MacBooks. In iOS 9 on these iPhones, you access shortcuts through a deep press on the screen. For example, you can ‘peek’ at a message in Mail to preview its content, and ‘pop’ it open to deal with it.
The 12 megapixel camera gives you the best ever iPhone shots. The 6s Plus still has the upper hand here with its optical image stabilisation. Meanwhile, the 6 and 6 Plus enjoy a price drop and the 5s is now under £400 off contract, and free on many contract deals.