The new iPhone, which includes an 8MP camera, the Siri voice-powered assistant and a faster processor, is available to pre-order online on a 24 month contract.
Tariffs start from £30pm and selected deals include Three’s popular ‘all you can eat’ data plan.
The new iPhone ships with iOS 5, the latest version of Apple’s mobile operating system, which introduces a raft of new features including iCloud and iMessaging.
Launching the iPhone 4s earlier this week, Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing said: “iPhone 4S plus iOS 5 plus iCloud is a breakthrough combination that makes the iPhone 4S the best iPhone ever.
“While our competitors try to imitate iPhone with a checklist of features, only iPhone can deliver these breakthrough innovations that work seamlessly together.”
To pre-order your phone head over to Three.co.uk.