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The iPhone XS has a smaller battery capacity than the iPhone X

The iPhone XS (right) has a single battery. Notice the slightly smaller width along the top right edge. (Image source: FixjeiPhone)
The iPhone XS (right) has a single battery. Notice the slightly smaller width along the top right edge. (Image source: FixjeiPhone)
According to TENAA, the iPhone XS has a 2658 mAh battery, a small downgrade from the iPhone X's 2716 mAh battery. Considering that the iPhone X was criticized for its mediocre battery life last year, this could be a sticking point for the XS.

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Apple’s new iPhones are here, and while the iPhone XS improves on the iPhone X in many ways, there’s one area where the XS falls behind: battery capacity. That could be troublesome for the iPhone XS; its battery is a bit smaller than the iPhone X’s, a device that struggled with battery life.

China’s TENAA requires that phone manufacturers disclose the actual battery capacity of all new phones in mAh in an effort to dispel confusion from the typical marketing fluff surrounding battery life. That’s good for consumers, as Apple is notorious for not clearly listing the iPhone’s specifications anywhere in their own literature. Thanks to TENAA, we know that the iPhone X’s battery had a fairly small 2716 mAh capacity spread across two cells. We have also learned that the iPhone XS has a smaller 2658 mAh battery, even though the battery is a solid piece.

That’s not great news. The iPhone X lasted about 9.5 hours in our own WiFi battery test, coming in well behind most other flagships last year. The bevy of features and sensors onboard are likely to blame, and while the iPhone XS’s A12 Bionic SoC should be more efficient, the smaller battery may mean that battery life is a bit worse. Considering most Android flagships have battery capacities in the 3300-4000 mAh range and SoC efficiency is getting better every year, road warriors may want to look outside of Cupertino for their next phone.

Of course, we will have an in-depth look at the battery life of the iPhone XS, including how it handles multiple use cases, in our review. Be on the lookout over the next couple of weeks for our take on the iPhone XS.

The iPhone X didn't fare so well in our battery tests compared to other flagships. (Image source: Self)
The iPhone X didn't fare so well in our battery tests compared to other flagships. (Image source: Self)

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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2018 09 > The iPhone XS has a smaller battery capacity than the iPhone X
Sam Medley, 2018-09-22 (Update: 2018-09-22)
Sam Medley
Sam Medley - Review Editor - @samuel_medley
I've been a "tech-head" my entire life. After graduating college with a degree in Mathematics, I worked in finance and banking a few years before taking a job as a Systems Analyst for my local school district. I started working with Notebookcheck in October of 2016 and have enjoyed writing news articles and notebook reviews. My areas of interest include the business side of technology, retro gaming, Linux, and innovative gadgets. When I'm not hunched over an electronic device or writing code for a new database, I'm either outside with my family, playing a decade-old video game, or sitting behind a drum set.