iPhone 4S real-world data speeds: What Siri won’t tell you

iPhone | Tuesday November 1 2011 9:47 AM | Comments (0) Tags: , , , , , , ,

iPhone 4S real-world data speeds: What Siri wont tell you

At CNET’s office building, the iPhone 4S from AT&T has a hard time getting a 3G connection.

(Credit:
Dong Ngo/CNET)

Cool as she is, the iPhone 4S’ new personal assistant Siri hasn’t been able to tell me in a meaningful way which iPhone 4S offers the fastest data speeds. In the end, I resorted to the usual do-it-yourself approach: a real-world test. And the results were interesting.

Prior to the testing, I expected some big differences between the iPhone 4 and the iPhone 4S (both GSM versions), since the iPhone 4S supports AT&T’s faster HSDPA 14.4 network, which is capable of reaching an upload speed of 14.4Mbps and download speed of 5.8Mbps, theoretically twice the speeds of the iPhone 4.

This wasn’t always the case, however, and sometimes it was quite the opposite. But first let’s talk about how the testing was done.

How we test
It’s generally hard to figure out the way to get the best picture of how fast a mobile cellular Internet device’s data rate is. The truth is that the speed of a cellular Internet connection varies a great deal from one location to another. It also depends on the server on which the app’s data resides and sometimes even on the time of day.

The truth is that the speed of a cellular Internet connection varies a great deal from one location to another…. [Read more]

iPhone 4S real-world data speeds: What Siri wont tell you

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