Commentary

iPhone 3GS Upload Speeds Limited To Paltry 384Kbps

Real-world speed tests and component tear-downs reveal that the iPhone 3GS can upload data at a pokey 384Kbps. That stinks. What gives, Apple?

Real-world speed tests and component tear-downs reveal that the iPhone 3GS can upload data at a pokey 384Kbps. That stinks. What gives, Apple?One of the first apps I installed on the iPhone 3GS was Speed Test. I run it nearly every day. I am especially certain to check it when I am visiting a new area, just to see what sort of speeds are really available out there. In all my tests, I've achieved a highest download speed of 1.283Mbps. That's about in-line with what AT&T's HSDPA-based 3G network can offer in the real world.

Upload speeds? The best I've achieved -- according to Speed Test -- is 276Kbps. An unofficial poll I conducted via Twitter returned the highest upload speed of 355Kbps from a user in Ohio. That's not so great, especially for a device that has the tag line "the S stands for speed".


More Mobility Insights

White Papers

More >>

Reports

More >>

Webcasts

More >>

A new report from Macworld includes a component breakdown of the iPhone 3GS. It reveals that the iPhone 3GS uses a UMTS/HSDPA cellular radio chip. HSDPA stands for high-speed downlink packet access. The iPhone can download stuff at a theoretical limit of 7.2Mbps (once AT&T gets those enhanced network speeds up and running). Right now, AT&T's network is limited to 3.6Mbps, and real-world download speeds of about 1.2 - 1.4Mbps are about right.

UMTS -- which the iPhone is using for uploads -- is limited to upload speeds of just 384Kbps. This is the bare minimum for a device to be considered "3G". Why doesn't the iPhone 3GS have at least HSUPA (high-speed uplink packet access) capabilities built in? For a device that markets itself on speed, limiting the uploads to just 384Kbps is extremely odd.

Considering the iPhone 3GS's new abilities to send multimedia messages (pictures, audio and video) and upload video directly to YouTube, this makes the upload limitations even more puzzling.

Apple has not officially commented on the matter.

Thoughts?


Related Reading




Currently we allow the following HTML tags in comments:

Single tags

These tags can be used alone and don't need an ending tag.

<br> Defines a single line break

<hr> Defines a horizontal line

Matching tags

These require an ending tag - e.g. <i>italic text</i>

<a> Defines an anchor

<b> Defines bold text

<big> Defines big text

<blockquote> Defines a long quotation

<caption> Defines a table caption

<cite> Defines a citation

<code> Defines computer code text

<em> Defines emphasized text

<fieldset> Defines a border around elements in a form

<h1> This is heading 1

<h2> This is heading 2

<h3> This is heading 3

<h4> This is heading 4

<h5> This is heading 5

<h6> This is heading 6

<i> Defines italic text

<p> Defines a paragraph

<pre> Defines preformatted text

<q> Defines a short quotation

<samp> Defines sample computer code text

<small> Defines small text

<span> Defines a section in a document

<s> Defines strikethrough text

<strike> Defines strikethrough text

<strong> Defines strong text

<sub> Defines subscripted text

<sup> Defines superscripted text

<u> Defines underlined text

InformationWeek encourages readers to engage in spirited, healthy debate, including taking us to task. However, InformationWeek moderates all comments posted to our site, and reserves the right to modify or remove any content that it determines to be derogatory, offensive, inflammatory, vulgar, irrelevant/off-topic, racist or obvious marketing/SPAM. InformationWeek further reserves the right to disable the profile of any commenter participating in said activities.

Disqus Tips To upload an avatar photo, first complete your Disqus profile. | View the list of supported HTML tags you can use to style comments. | Please read our commenting policy.
T-Shirt Giveaway T-Shirt Giveaway: Each week we're selecting one great comment from our readers. The author of the comment will receive an InformaitonWeek Community t-shirt. So get posting!
Subscribe to RSS

Resource Links