The iPhone 4S features faster image capture (down to 0.5s shot-to-shot time and 1.1 second ‘time to first photo’), and captures more light as a result of the new sensor. It also gains 1080p video, is said to have better auto white balance performance and adds face detection for the first time. The 4S will first be available in the US, UK and five other countries on October 14th, with 22 more countries following two weeks later.