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View Full Version : The iPhone's 3G Speeds Explained


Edward Kirk
June 12th, 2008, 11:16 PM
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So, as you've probably guessed, the new iPhone 3G is capable of running on AT&T's 3G network, but what exactly will that mean for you if you get one? Here are some answers to a few questions you might be having about the new phone's 3G capability, like it's maximum speed and why the speed was limited. <!--break-->

According to the test shown at the WWDC keynote, the new iPhone is capable of browsing 2.4 times faster than the old one, thanks to the 3G technology. Part of this is thanks to the fact that AT&T's 3G network is currently the fastest 3G network available in the US, capable of a decent 3.6Mbps. Unfortunately, the iPhone 3G can only manage 1.4Mbps of that speed. It's still noticeably faster, but it's not amazing. This is because AT&T has restricted the iPhone's speed on the network.

No, it's not because AT&T is evil, (although I have my own theories in that regard). The iPhone actually does benefit from having a slightly tuned-down 3G speed.

For one, the battery life would be significantly decreased if it were allowed to transfer data at that speed. The second is that AT&T's 3G network cell sites are like islands, and the more people that access them and the faster they do so, the slower it is for everyone else on the network. While AT&T claims that their network can handle the increased traffic, they probably want to play it safe anyway.

[via <a href="http://gizmodo.com/5015307/giz-explains-what-you-didnt-know-about-the-iphones-3g" target="_blank">Gizmodo</a>]</div>

iKiwi
June 13th, 2008, 06:17 AM
So, is the 3g only slowed down through AT+T?

Im over in new zealand and our 3g networks have been around for ages. Will we be able to use the iphone at full speed there?

BillyMayes
June 13th, 2008, 11:10 AM
Good question. It's difficult to know that right now since it's not over there yet. When July 11th comes around, we'll know then. But I'd guess that since one of the reasons for the cap is battery life, it may still end up being 1.4mbps.

It still rocks for the most part ;)

Ottot
June 13th, 2008, 05:03 PM
Ok, so AT&T 3G is capable of 3.6Mbps, but, the iPhone will only run at 1.4Mbps; at what speed does the competition's 3G handsets actually run at on AT&T?

On other HSDPA 3G networks?

How about in Europe, ANZ, and Asia?

Spoon
June 13th, 2008, 05:11 PM
Ok, so AT&T 3G is capable of 3.6Mbps, but, the iPhone will only run at 1.4Mbps; at what speed does the competition's 3G handsets actually run at on AT&T?

On other HSDPA 3G networks?

How about in Europe, ANZ, and Asia?
I believe they are all capped at the same speed when it's on AT&T. In other countries, it's probably different, but not by much considering battery life.

iswenson
July 14th, 2008, 04:20 PM
the battery life with 3g will be a major issue in my opinion. hopefully apple is using a far battery battery than they used in the 1st iphone.