Smart Battery Case for iPhone XS Appears to Be Compatible With iPhone X

Apple yesterday debuted new Smart Battery Cases for the iPhone XS, XS Max, and XR, and review units are in the hands of members of the media and some lucky people who received early deliveries.

Many ‌iPhone‌ X users have been wondering if the ‌iPhone‌ XS Smart Battery Case will work with the older model given that the two devices are nearly identical in design, and the answer appears to be yes, though there is some uncertainty.

iphone xs max battery case
This morning, iMore's Rene Ritchie put an ‌iPhone‌ X running iOS 12.1.2 in an ‌iPhone‌ XS ‌Smart Battery Case‌ and received an error suggesting the ‌iPhone‌ X was not compatible with the case.

He updated the ‌iPhone‌ X to iOS 12.1.3, however, and was able to get the ‌iPhone‌ X to charge in the ‌iPhone‌ XS ‌Smart Battery Case‌. He also now says that the ‌iPhone‌ X will charge with the Battery Case if the incompatibility popup is dismissed.


A MacRumors reader was also able to get the ‌iPhone‌ X to charge in an ‌iPhone‌ XS ‌Smart Battery Case‌, and Chris Welch of The Verge said in his testing, the ‌iPhone‌ X was able to charge an ‌iPhone‌ X running iOS 12.1.2 in an ‌iPhone‌ XS Max ‌Smart Battery Case‌.


So it appears, based on this limited amount of testing, that the ‌iPhone‌ X is going to charge in an ‌iPhone‌ XS ‌Smart Battery Case‌, though there could be some compatibility issues on iOS 12.1.2. If the case doesn't charge the ‌iPhone‌ X, as Ritchie suggested, you can restart the ‌iPhone‌ or update to iOS 12.1.3 to get it working.

It is worth noting that while the ‌iPhone‌ X may charge in the ‌iPhone‌ XS Battery Case, the fit is imprecise. The speaker and microphone holes do not line up, and the camera cutout is a bit off.

Apple's Smart Battery Cases for the ‌iPhone‌ XS, XS Max, (and presumably XR), feature 10.1Whr batteries that extend the life of each ‌iPhone‌.

The ‌iPhone‌ XS Max normally offers up to 25 hours talk time, 15 hours of internet use, and 15 hours of video playback, which is extended to 37 hours of talk time, 20 hours of internet, and 25 hours of video playback with the ‌Smart Battery Case‌.

The ‌iPhone‌ XS alone features up to 20 hours of talk time, 12 hours of internet use, and 14 hours of video playback, which is extended to 33 hours of talk time, 21 hours of internet use, and 25 hours of video playback with the ‌Smart Battery Case‌.

The ‌iPhone‌ XR features up to 25 hours of talk time, 15 hours of internet use, and 16 hours of video playback, which is extended to 39 hours of talk time, 22 hours of internet use, and 27 hours of video playback.

The Smart Battery Cases are priced at $129 and can be purchased from the Apple website.

Related Forum: iPhone

Popular Stories

samsung crease less foldable display ces 2026%402x

Foldable iPhone's Crease-Free Display Tech Spotted at CES 2026

Tuesday January 6, 2026 3:04 am PST by
CES 2026 has just provided a first glimpse of the folding display technology that Apple is expected to use in its upcoming foldable iPhone. At the event, Samsung Display briefly showcased its new crease-less foldable OLED panel beside a Galaxy Z Fold 7, and according to SamMobile, which saw the test booth before it was abruptly removed, the new panel "has no crease at all" in comparison. The ...
iPhone Top Left Hole Punch Face ID Feature Purple

10 Reasons to Wait for This Year's iPhone 18 Pro

Thursday January 8, 2026 2:56 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Apple Card iPhone 16 Pro Feature

Apple Card Will Move From Goldman Sachs to JPMorgan Chase

Wednesday January 7, 2026 12:57 pm PST by
JPMorgan Chase has reached a deal to take over operation of the Apple Card, reports The Wall Street Journal. Barring any "last minute hiccups," the deal should be announced shortly after over a year of negotiations. Reports began circulating over two years ago that current Apple Card issuer Goldman Sachs was looking to end its partnership with Apple as part of an effort to scale back on...
iOS 27 Mock Quick

Five New iPhone Features Rumored for iOS 27

Wednesday January 7, 2026 2:51 pm PST by
Though it's been just a few months since iOS 26 launched, we're already hearing rumors about the next-generation version of iOS, iOS 27. iOS 27 will be introduced at Apple's June WWDC 2026 event before it launches in September 2026. We don't know all of the details about iOS 27 yet, but we do have some information about what to expect. "Snow Leopard" Update iOS 27 will apparently focus...
Logitech MX Master 3S

Logitech Blames 'Inexcusable Mistake' After Certificate Expiry Breaks macOS Apps

Wednesday January 7, 2026 5:27 am PST by
Logitech users on macOS found themselves locked out of their mouse customizations yesterday after the company let a security certificate expire, breaking both its Logi Options+ and G HUB configuration apps. Logitech devices like its MX Master series mice and MX Keys keyboards stopped working properly as a result of the oversight, with users unable to access their custom scrolling setup,...
ChatGPT Health Integration Connectors Feature

OpenAI Launches ChatGPT Health With Apple Health Integration

Wednesday January 7, 2026 11:27 am PST by
OpenAI today announced the launch of ChatGPT Health, a dedicated section of ChatGPT where users can ask health-related questions completely separated from their main ChatGPT experience. For more personalized responses, users can connect various health data services such as Apple Health, Function, MyFitnessPal, Weight Watchers, AllTrails, Instacart, and Peloton. Last month, MacRumors discovere...
iphone 17 models

No iPhone 18 Launch This Year, Reports Suggest

Thursday January 1, 2026 8:43 am PST by
Apple is not expected to release a standard iPhone 18 model this year, according to a growing number of reports that suggest the company is planning a significant change to its long-standing annual iPhone launch cycle. Despite the immense success of the iPhone 17 in 2025, the iPhone 18 is not expected to arrive until the spring of 2027, leaving the iPhone 17 in the lineup as the latest...
AirPods Pro 3 Year of the Horse Feature

Apple Launches Year of the Horse AirPods Pro 3 for Lunar New Year

Monday January 5, 2026 11:28 am PST by
Apple has designed a limited edition version of the AirPods Pro 3 to celebrate Lunar New Year, and customers in select countries can purchase them starting today. The Year of the Horse Special Edition AirPods Pro 3 feature a unique horse emoji character that's otherwise unavailable. Customers in China, Hong Kong, Taiwan, Malaysia, and Singapore are able to buy the AirPods, and they'll be...

Top Rated Comments

beerfish89 Avatar
91 months ago
As someone who owned the X (upgraded to the XS), this is unbelievable.

I cannot understand the rationale for the software block of this. If someone is willing to spend $129 on it and they’re a X owner, I just cannot fathom why this makes any sense.
It does work and charge on an iPhone X. Working perfect on mine. Sound is just as loud as before.


Attachment Image

Attachment Image

Attachment Image
Score: 25 Votes (Like | Disagree)
RamGuy Avatar
91 months ago
Just buy a mophie then
The issue with non-Apple Battery Cases is the fact that they work as glorified battery packs and chargers. Your phone has no real clue that you are utilising a Battery Case.

Why is this a issue? Well because there are numerous things your iPhone will do only when it's connected to power. It saves a lot of power hungry tasks by default to only be done when it's connected to a charger.

Your phone is automatically in a more power hungry state by default when you are connected to a charger. This is not a issue with the Apple Smart Battery Case because it's directly integrated with iOS. With this case your phone knows it's just a secondary battery and it will behave accordingly.

When utilising battery cases from Mophie and other brands it will simply behave like a regular charge. Those cases have become smarter so they won't completely overload your iPhone's battery by continuously provide charge/power as long as the case's battery still have juice let of it but it will still trick your phone into believing you are connected to a wall outlet and behave accordingly reducing the potential battery life of the case drastically compared to have it all behaves with the Apple Smart Battery Case.
Score: 15 Votes (Like | Disagree)
rti92391 Avatar
91 months ago
As someone who owned the X (upgraded to the XS), this is unbelievable.

I cannot understand the rationale for the software block of this. If someone is willing to spend $129 on it and they’re a X owner, I just cannot fathom why this makes any sense.
Score: 14 Votes (Like | Disagree)
magicschoolbus Avatar
91 months ago
So a guy on Reddit cuts off an iPhone 7 case and plugs it into the X and it works - Apple releases a case that fits and should work, but add software to make it not work.

The days of my patience with Cook and Co's new Apple are running thin.
Score: 10 Votes (Like | Disagree)
kiensoy Avatar
91 months ago
The iPhone X set the path for the next 10 years, said Tim Cook, but discontinued it a year later and seems to not support it anymore. Early adopter issues.
Score: 9 Votes (Like | Disagree)
ryanwarsaw Avatar
91 months ago
Out of luck? This saves X users from buying junk.
Score: 7 Votes (Like | Disagree)