The iPhone XS Max has the same hardware and cameras, but a larger 6.46 inch (164 mm) OLED display (marketed as 6.5 inch) with a resolution of 2688 × 1242 pixels (3.3 megapixels) at 458 ppi and a larger battery (3,174
mAh). The XS has a smaller battery than the X, dropping to 2,658 mAh from 2,716 mAh. The XS' battery is a new single-cell L-shaped battery, while the iPhone XS Max battery remains two cells like the iPhone X. Apple said that the iPhone XS lasts up to 30 minutes longer than iPhone X, while the iPhone XS Max lasts up to 1.5 hours longer than iPhone X. Apple said that the devices have faster
Face ID technology than the iPhone X. It was also announced in June 2019 at
WWDC that Face ID on iPhone XS, iPhone XS Max, iPhone XR and iPhone X would be made up to 30% faster with iOS 13, which was released on September 19, 2019. The XS and XS Max are rated
IP68 for dust and water resistance under IEC standard 60529, with Apple specifying a maximum depth of 2 meters and up to 30 minutes of submersion in water. This is an improvement over the
IP67 water resistance of the
iPhone 8 and
X. Apple has performed tests in various
liquids including
chlorinated water,
salt water,
tea,
wine,
beer and
juices. The XS and XS Max support
dual SIMs through a
nano-SIM and an
eSIM. In mainland China, Hong Kong, and Macau, however, the XS Max comes with a dual nano-SIM tray (and no eSIM). The XS does not have a dual nano-SIM tray, so the eSIM functionality is enabled for use in
Hong Kong and Macau, but not in mainland China.
SoC XS and XS Max use A12 Bionic SoC, which consists of 6-core CPU (2x Vortex + 4x Tempest), 4-core GPU, and 8-core Neural Engine.
Software The iPhone XS and XS Max originally shipped with iOS 12, and received iOS 13, iOS 14, iOS 15, iOS 16, iOS 17, and iOS 18. The XS and XS Max, alongside the iPhone 6s and 6s Plus, are the longest supported iPhones ever released, each receiving seven major versions of iOS.
Wireless charging The wireless charging coil material was switched to copper to reduce charging time and power loss.
Rear camera upgrades The iPhone XS, XS Max and XR are the first iPhones able to record
stereo audio for videos. Starting with the iPhone 2018 lineup (iPhone XS, iPhone XS Max and iPhone XR), these cameras were updated to a 12MP (1/2.55") sensor size with a 1.4 μm pixel size, the same sensor and pixel size as the primary cameras of the
Samsung Galaxy S10,
Samsung Galaxy S9 Samsung Galaxy S8 Samsung Galaxy S7,
Pixel 2,
Pixel 3a and Pixel 3a XL,
Pixel 3 and Pixel 3 XL, and the
Moto X4. == Software ==