My iPhone 4S cellular data usage stats from October 22, 2011 to September 22, 2012.
I used 11.4 GB of data in 336 days, or about 34 MB/day. For comparison, I used about 14 MB/day on my iPhone 4.
This continues the trend of increasing data usage with each new device, but the jump from the 4 to the 4S is the largest jump I’ve seen so far (2.4x increase in daily usage). I would attribute the large increase do to my the amount of traveling I did this year. Without WiFi, I relied on my phone quite a bit, especially in countries where tethering was allowed.
My iPhone 4’s usage stats from July 9, 2010 to October 12, 2011.
I used 5.6 GB in 410 days (460 days minus 50 days spent out of the country for work), or about 13.6 MB/day. For comparison, my iPhone 3GS used 3.1 GB in 381 days, or 8.13 MB/day.
It’s not quite the doubling I saw when going from 1st Gen to 3G or 3G to 3GS, something I would attribute to iOS 5, which I’ve been running since the early summer. I always had WiFi off prior to iOS 5, but with the new wireless syncing feature, I am using WiFi exclusively at home and at work and only dropping down to 3G when I’m not at either.
In contrast, I got my 4S Saturday morning and was out of town until Sunday afternoon. The usage counter on the 4S reads 53.4 MB, or about 25.7 MB/day.
See here for my 3GS data usage.
See here for my 3G data usage.
See here for my original iPhone data usage.