Nationwide Study Shows AT&T Has Fastest iPhone Data Speeds, Sprint Most Dropped Calls
According to a study by Metrico Wireless, a mobile performance measurement company, AT&T has the fastest iPhone 4S data speeds for both upload and download. Sprint's data speed is roughly five times slower, echoing earlier anecdotal reports of poor Sprint data connections.

In all, Metrico performed 21,000 Web page downloads nationwide with the iPhone 4S and iPhone 4 over the networks of the nation's largest three carriers. Metrico also ran more than 8,000 data download and upload tests and generated about 6,000 voice calls with recorded human voices. The tests were performed in a certified lab as well as several locations in five unnamed cities that Metrico called "representative of [network] conditions nationwide."
Metrico claims Sprint has the highest voice call quality on the uplink -- when the iPhone owner is speaking -- while AT&T had the highest quality on the downlink.
For dropped calls, something for which AT&T has been consistently criticized, Sprint comes out worst. Metrico claims Verizon experienced a 2.1% call failure rate while AT&T had 2.8% and Sprint was worst at 3.7%.
Computerworld noted that part of the intention of the nationwide study was to show "how performance problems in one city reported by the news media and bloggers shortly after a phone is launched can be less relevant over the entire network over time."
Popular Stories
Apple's Worldwide Developers Conference (WWDC) starts today with the traditional keynote kicking things off at 10:00 a.m. Pacific Time. MacRumors is on hand for the event and we'll be sharing details and our thoughts throughout the day.
We're expecting to see a number of software-related announcements led by a design revamp across Apple's platforms that will also see the numbering of all of...
Apple is planning to announce several new features for the Messages and Phone apps on iOS 26, according to Bloomberg's Mark Gurman.
In a lengthy report outlining his WWDC 2025 expectations today, Gurman said that the two main changes in the Messages app will be the ability to create polls, as well as the option to set a background image within a conversation.
9to5Mac was first to report...
Apple today announced a complete redesign of all of its major software platforms called "Liquid Glass."
Announced simultaneously for iOS, iPadOS, macOS, watchOS, tvOS, visionOS, and CarPlay, Liquid Glass forms a new universal design language for the first time. At its WWDC 2025 keynote address, Apple's software chief Craig Federighi said "Apple Silicon has become dramatically more powerful...
At today's WWDC 2025 keynote event, Apple unveiled a new design that will inform the next decade of iOS, iPadOS, and macOS development, so needless to say, it was a busy day. Apple also unveiled a ton of new features for the iPhone, an overhauled Spotlight interface for the Mac, and a ton of updates that make the iPad more like a Mac than ever before.
Subscribe to the MacRumors YouTube channel ...
Apple today announced that iPadOS 26 will be compatible with the iPad models listed below.
iPadOS 26 features a new Liquid Glass design, a menu bar, improved app windowing, and more.
iPadOS 26 supports the following iPad models:iPad Pro (M4)
iPad Pro 12.9-inch (3rd generation and later)
iPad Pro 11-inch (1st generation and later)
iPad Air (M2 and later)
iPad Air (3rd generation and...
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device.
Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including worse battery life, only a single ...
In 2020, Apple added a digital car key feature to its Wallet app, allowing users to lock, unlock, and start a compatible vehicle with an iPhone or Apple Watch. The feature is currently offered by select automakers, including Audi, BMW, Hyundai, Kia, Genesis, Mercedes-Benz, Volvo, and a handful of others, and it is set to expand further.
During its WWDC 2025 keynote today, Apple said that 13...