iPhone 4S has more features than iPhone 4. That is why, not just its battery consumption is more, its data use is also more than iPhone 4, nearly double.
This has been claimed by study conducted by Arieso. Arieso is an outfit that optimizes mobile networks. The final report of that study says that users of iPhone 4S are consuming around “twice as much data as the previous iPhone model, and even more than iPad tablets due to increasing use of online services like the virtual personal assistant Siri.”
According to prior studies, the iPhone 4 used only 1.6x more data than the iPhone 3G. Even iPad 2 consumed 2.5x more data than the iPhone 3G. Today more and more websites are preparing themselves for mobile use, and there is no end to apps that consume a lot of data. That is why, we advise our readers to be careful about their data usage plan while using iPhone 4S or Siri.