The iPhone XS, introduced on September 12, 2018, are Apple’s two current flagship iPhones, featuring the most advanced technology Apple has introduced in an iPhone. This iPhone and its bigger model iPhone Xs Max were discontinued on September 10, 2019, when Apple introduced the new iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max devices, but some resellers may still continue to offer the XS and XS Max for sale at discounted prices.
Both of the iPhones look similar to the iPhone X, but in addition to the 5.8-inch model, there’s also now a larger 6.5-inch model. iPhone XS and iPhone XS Max feature the sharpest OLED displays and highest pixel density of any Apple device, with support for Dolby Vision, HDR 10, and Wide Color.
iPhone XS Max, the 6.5-inch iPhone, is the largest display Apple has offered, but in a body that’s the size of the iPhone 8 Plus. According to Apple, the iPhone XS and XS Max have the most durable glass ever in a smartphone with improved scratch resistance.