Apple introduced the iPhone 4s on October 4, 2011, at the “Let’s Talk iPhone” event at the Apple Campus in Cupertino. It was the first iPhone event with Tim Cook without Steve Jobs.
Dual-core A5 chip, completely redesigned camera, 1080p HD video recording were the highlights of iPhone 4s. iOS 5 was introduced with the iPhone 4s, and the assistant Siri has been helping iPhone users ever since. Notification Center, iMessage, Camera app that cannot be removed from the lock screen, setting up and activating iPhone without needing a PC, iCloud, Apple’s eventful cloud storage service, were some of the innovations that came with iOS 5.
You can watch the iPhone 4s ad, which you will probably see for the first time, which Apple does not include on YouTube and its site.