Siri works on iPhone 4

Siri, Apple's voice controlled assistant, is one of the main reasons to get an iPhone 4S. But if you've got an iPhone 4, you needn't break the bank picking up a 4S if you want to try the new iPhone's killer app. Developer Steven Troughton-Smith has managed to port Siri to an iPhone 4, and has reported that it works smoothly – this despite Apple's claims that Siri needs a powerful chip to run.

According to 9to5mac, which is working with the developer on the port, Siri on the iPhone 4 can handle dictation and spoken commands quite happily. There's a caveat, though – it won't work on commands that require authentication from Apple’s servers. But since most of those options don’t yet work in the UK anyway, that isn’t too much of a problem.

Check out this video of the iPhone 4 running Siri to see for yourself.