I updated my iPhone 4S to iOS 6. I suddenly activated Siri (because finally it comes in my language) and in this days I noticed that my iPhone battery life is less than previously.
This problem is due to iOS 6 (that maybe needs more power) or it is due to Siri? I have to say that I didn't used Siri in this days. So Siri consume battery even if I don't use it?