A wireless industry study has found that iPhone 4S owners on average use roughly twice as much data as iPhone 4 owners and three times as much as iPhone 3G users.



From Apple Insider:

Telecom network technology firm Arieso cited the Siri virtual assistant feature as contributing to the increase, according to Reuters. The study used Apple's three-year-old iPhone 3G model as a benchmark.

The firm discovered that data usage of the iPhone 4 was 1.6 times higher than the iPhone 3G, while iPad 2 tablets consumed 2.5 times more data. The iPhone 4S was the heaviest on usage with three times the amount used by the iPhone 3G.

  iPhone 4S users consume nearly twice as much data as iPhone 4 - study