T-Mobile recently edited the fine print on its 4G LTE Simple Choice plans to notify customers that there's a 21 GB soft cap on data usage, reports TmoNews. Customers who exceed 21 GB of data usage during a billing period will see their data speeds throttled during periods of high network demand.

t-mobile_usa_logo

Unlimited 4G LTE customers who use more than 21 GB of data in a bill cycle will have their data usage de-prioritized compared to other customers for that bill cycle at locations and times when competing network demands occur, resulting in relatively slower speeds. See t-mobile.com/OpenInternet for details.

Prior to the explicit 21 GB soft cap, T-Mobile's Simple Choice subscribers who used more data than 97 percent of other T-Mobile subscribers were seeing slower data speeds during times of network congestion. According to TmoNews, customers who exceed their data limits see considerably slower speeds in busy areas, sometimes lower than 1Mbps.

This change in fine print makes it clear exactly how much data you have to use in order to feel the pinch. Previously, the 97% marker was ambiguous at best. You have no idea how much data other customers are using, and so you will have no way of knowing if you're in the top 3% of data users, or not. Now there's a much clearer 21GB "soft" cap.

T-Mobile's 21 GB soft cap is rather generous and is likely to affect only a small percentage of T-Mobile customers. Reduction in data speeds is only enacted when there's network congestion, so affected customers will only see throttling during peak usage times.

Customers who use more than 21 GB of data in a billing cycle will be flagged as de-prioritized by T-Mobile and could experience slower speeds at certain times until a new monthly billing cycle begins.

Top Rated Comments

Xgm541 Avatar
139 months ago
"Unlimited 4G LTE customers who use more than 21 GB of data"

why not call it a 21GB data plan?
Maybe because the data doesnt end at 21gb?
Score: 14 Votes (Like | Disagree)
BeSweeet Avatar
139 months ago
"Unlimited 4G LTE customers who use more than 21 GB of data"

why not call it a 21GB data plan?
Because it's not a 21GB data plan. It's still unlimited usage no matter how you look at it.
Score: 10 Votes (Like | Disagree)
cariacou Avatar
139 months ago
"Unlimited 4G LTE customers who use more than 21 GB of data"

why not call it a 21GB data plan?
Score: 6 Votes (Like | Disagree)
itsthenewdc Avatar
139 months ago
People keep saying "well, it's still unlimited after the 21GB," but are failing to realize the name of the plan is Unlimited 4G LTE Data. With that said, if you get de-prioritized, then you technically aren't getting unlimited 4G LTE. You're getting mostly 4G LTE with unlimited slower speeds.
Score: 6 Votes (Like | Disagree)
aajeevlin Avatar
139 months ago
What is then the difference between this "unlimited" and their other lower tier plan? Basically this is now similar to a lower tier plan with higher cap. For example, for their lower tier plan, you get 1, 3, or 5GB of 4G LTE, then after that you are dropped to 3G or whatever lower speed. So instead of "unlimited" they need to say, 21GB, then we will drop you to lower speed. I'm fine with whatever they want to dish out, but don't play word games. Write it as how it REALLY is.
Score: 6 Votes (Like | Disagree)
nostaws Avatar
139 months ago
You don't have to like throttling (no one does) but this may be one of the top 10 worst analogies in macrumors history.
Exactly. It's like walking into a business that has a huge advertisement "Unlimited M&M's". After paying and eating a few handfuls the manager stops you and starts hurling them as projectiles one-by-one at your forehead and says "eat as many as you can catch!" Who'd have a problem with that?!

So this in effect is what data throttling is. And everyone knows it is not in the spirit of the advertisement or what the consumer thinks they are buying.
Score: 5 Votes (Like | Disagree)

Popular Stories

Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. In his Powe...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
We are still waiting for the iOS 26.3 Release Candidate to come out, so the first iOS 26.4 beta is likely still at least a week or two away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
Apple MacBook Pro M4 hero

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by
Apple is planning to launch new MacBook Pro models with M5 Pro and M5 Max chips alongside macOS 26.3, according to Bloomberg's Mark Gurman. "Apple's faster MacBook Pros are planned for the macOS 26.3 release cycle," wrote Gurman, in his Power On newsletter today. "I'm told the new models — code-named J714 and J716 — are slated for the macOS 26.3 software cycle, which runs from...
iOS 26 Home Feature

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by
In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...