T-Mobile announced today it has recently implemented 4x4 MIMO in 319 cities across the United States, effectively doubling the number of data paths between the network's cell towers and compatible smartphones.

4x4-MIMO
The carrier has also launched 256 QAM for downloads and 64 QAM for uploads across half of its network, with a nationwide rollout to be completed by the end of October. These new quadrature amplitude modulation technologies increase the number of bits delivered per transmission for even faster LTE speeds. Combined with 4x4 MIMO, 256 QAM delivers theoretical download speeds up to 400 Mbps.

Meanwhile, T-Mobile said it now covers nearly 312 million customers in the United States, bringing it to within 99.7% of Verizon's coverage.

Qualcomm's X12 modem, an appropriate candidate for iPhone 7, supports 4x4 MIMO, so it is possible that some models could benefit from the technology. However, Apple is expected to use Intel's XMM 7360 LTE modem for a portion of iPhone 7 models, including AT&T models, and 4x4 MIMO is not an advertised feature of that chipset. iPhone 6s and older models do not support 4x4 MIMO.

T-Mobile customers with Samsung's Galaxy S7 or Galaxy S7 edge will be covered by 4x4 MIMO following a software update later this month.

Tags: LTE, T-Mobile

Top Rated Comments

oneMadRssn Avatar
115 months ago
400 Mbps seems like overkill for streaming 480p video...
Score: 8 Votes (Like | Disagree)
MrXiro Avatar
115 months ago
Switched to T-Mobile 3 months ago. Am back on Verizon. While in town in the metro area, the coverage was good (though it often dropped to 3G inside buildings, but whatever I could deal with that). When I got out of town and into the suburbs and, God forbid, the rural areas, the coverage failed horrifically.

All this said, I hope they can get it together. They seem to be trying to do the right things. I just wish they could get their coverage area increased. And yeah their customer service was abysmal. I was told by the in-store reps that if I called with a "no-coverage report" that I'd get some kind of concern or something. Instead I got, "Oh that zip code shows as covered. You should be good." Wrong answer. At least with Verizon I can get on the network when I go visit my parents.
Or you can just stop visiting your parents like I have. :D
Score: 7 Votes (Like | Disagree)
SuperCachetes Avatar
115 months ago
T-Mobile is covering 312million customers in the US but there are 324million people in the US??? Can someone explain this to me? How much are the other carriers covering then?
"Covered" means able to access T-Mobile's signal, not subscribing to their service.
Score: 6 Votes (Like | Disagree)
infiniteentropy Avatar
115 months ago
Switched to T-Mobile 3 months ago. Am back on Verizon. While in town in the metro area, the coverage was good (though it often dropped to 3G inside buildings, but whatever I could deal with that). When I got out of town and into the suburbs and, God forbid, the rural areas, the coverage failed horrifically.

All this said, I hope they can get it together. They seem to be trying to do the right things. I just wish they could get their coverage area increased. And yeah their customer service was abysmal. I was told by the in-store reps that if I called with a "no-coverage report" that I'd get some kind of concern or something. Instead I got, "Oh that zip code shows as covered. You should be good." Wrong answer. At least with Verizon I can get on the network when I go visit my parents.
Score: 4 Votes (Like | Disagree)
britboyj Avatar
115 months ago
I have T-Mobile in Dallas, and switched after Verizon said "No, we won't let you buy an iPhone 6 because you're one week shy of some ********." I even did the T-Mobile test drive and periodically did tests with my Verizon iPhone 5S and the T-Mobile 5S.

Without exception, T-Mobile had a faster SpeedTest score and general "real life" perception of speed, EVEN IF it had less bars. Hell, T-Mobile's 4G was faster than Verizon's LTE a number of times I tested it. Their customer service has been exceptional, but I will caveat and say that their reception inside large buildings is... Less good. Good thing I rarely make any actual phone calls.

Not to mention T-Mobile let me use data while on a call... (Not sure if Verizon has joined the 21st Century yet)
Score: 4 Votes (Like | Disagree)
Terrinb Avatar
115 months ago
This.

Sprint, T-Mobile, and all the other non-Verizon / ATT carriers in the US keep making these outrageous "within 1%" claims, but they do not let you know that the coverage is 1 bar of minimal cell service with no data in places where verizon will get you decent data speeds and perfect reception. T-Mobile is not an option for a much larger portion of people than they will have you believe.
Maybe you are right, but I've had T-Mobile for over ten years and travel a lot. In the few instances T-Mobile didn't have coverage (far into the country), I just rode on another network. No roaming cost, what's the big deal?

To each their own, but in Michigan where I live T-Mobile works great.
Score: 4 Votes (Like | Disagree)

Popular Stories

iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro to Reverse iPhone X Design Decision

Monday July 7, 2025 9:46 am PDT by
Since the iPhone X in 2017, all of Apple's highest-end iPhone models have featured either stainless steel or titanium frames, but it has now been rumored that this design decision will be coming to an end with the iPhone 17 Pro models later this year. In a post on Chinese social media platform Weibo today, the account Instant Digital said that the iPhone 17 Pro models will have an aluminum...
iOS 26 Feature

Everything New in iOS 26 Beta 3

Monday July 7, 2025 1:20 pm PDT by
Apple is continuing to refine and update iOS 26, and beta three features smaller changes than we saw in beta 2, plus further tweaks to the Liquid Glass design. Apple is gearing up for the next phase of beta testing, and the company has promised that a public beta is set to come out in July. Transparency In some apps like Apple Music, Podcasts, and the App Store, Apple has toned down the...
imac video apple feature

Apple Launching These 15+ Products Later This Year

Sunday July 6, 2025 8:05 am PDT by
The calendar has turned to July, meaning that 2025 is now more than half over. And while the summer months are often quiet for Apple, the company still has more than a dozen products coming later this year, according to rumors. Below, we have outlined at least 15 new Apple products that are expected to launch later this year, along with key rumored features for each. iPhone 17 Series iPho...
iphone 16 pro models 1

Here's How the iPhone 17 Pro Max Will Compare to the iPhone 17 Pro

Saturday July 5, 2025 1:00 pm PDT by
Apple should unveil the iPhone 17 series in September, and there might be one bigger difference between the Pro and Pro Max models this year. As always, the Pro Max model will be larger than the Pro model:iPhone 17 Pro: 6.3-inch display iPhone 17 Pro Max: 6.9-inch displayGiven the Pro Max is physically larger than the Pro, it has more internal space, allowing for a larger battery and...
iPhone Car Key Kia

Here's Which Vehicles Offer iPhone Car Keys

Sunday July 6, 2025 3:03 pm PDT by
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. Apple has a web page with a list of vehicle models that ...
apple wallet drivers license feature iPhone 15 pro

Apple Says iPhone Driver's Licenses Will Expand to These 8 U.S. States

Tuesday July 8, 2025 11:26 am PDT by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Unfortunately, this feature continues to roll out very slowly since it was announced in 2021, with only nine U.S. states, Puerto Rico,...
iphone 17 pro render majin bu

New iPhone 17 Pro Renders Highlight Apple Logo and MagSafe Design Changes

Sunday July 6, 2025 8:43 pm PDT by
New renders today provide the best look yet relocated Apple logo and redesigned MagSafe magnet array of the iPhone 17 Pro and iPhone 17 Pro Max. Image via Majin Bu. Several of the design changes coming to the iPhone 17 Pro model have been rumored for some time, such as the elongated camera bump that spans the full width of the device, with the LiDAR Scanner and flash moving to the right side. ...
apple account card feature

Apple Account Card Expanding to More Countries

Tuesday July 8, 2025 7:34 pm PDT by
Apple is expanding the ability to add an Apple Account Card to the Wallet app to more countries, according to backend Apple Pay changes. With iOS 15.5, Apple updated the Wallet app to allow users to add an Apple Account Card, which displays the Apple credit balance associated with an Apple ID. If you receive an Apple gift card, for example, it is added to an Apple Account that is also...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro Coming Soon With These 14 New Features

Friday July 4, 2025 1:05 pm PDT by
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are just over two months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models. Latest Rumors These rumors surfaced in June and July:Apple logo repositioned: Apple's logo may have a lower position on the back of the iPhone 17 Pro models, compared to previous...