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AT&T vs. Sprint vs. Verizon: iPhone 4S Network Speed Test

Posted October 14, 2011 at 8:32pm by iClarified · 23440 views
iLounge has completed an initial 3G cellular data speed comparison of the iPhone 4S across all of the available U.S. carriers.

The data speeds seen on AT&T's HSPA network-between 2.41Mbps and 2.99Mbps down, 0.68-0.81Mbps up at our Buffalo, NY test location-far outpace those seen on either Verizon's or Sprint's EV-DO networks in the same area.

Between the two CDMA carriers, Verizon fared better save for one outlier, with download speeds ranging from 0.55-0.69Mbps down and 0.04-0.26Mbps up, compared to 0.33-0.58Mbps down and 0.11-0.22Mbps up for Sprint.


iLounge concludes that AT&T has a significant edge in 3G cellular data speeds and believes that customers will need to wait for LTE-supporting iPhones before Sprint and Verizon will be able to bridge the gap.

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