IPhone XS Max

The iPhone X S Max (pronounced "ten-S") is a touchscreen slate smartphone designed and marketed by Apple Inc. It was introduced in September 2018 as the technological successor to the iPhone X and the oversize successor to the iPhone 8 Plus. It was replaced by the iPhone 11 Pro Max in September 2019.

Release
The iPhone X S Max was announced by Apple at a special event on September 12, 2018 by CEO Tim Cook at the Steve Jobs Theater in Cupertino, California, alongside the iPhone X R and X S. The marketing slogan for the iPhone X S Max was: "Welcome to the big screens." The iPhone X S and X S Max were released on September 21, 2018.

Features
The features primarily consist of a new faster six core A12 Bionic processor, a 6.5-inch Super Retina display, updated Face ID, and an improved dual-camera system. The X S Max also adopted a 4x4 MIMO 4G antenna, doubling the maximum cellular bandwidth over that of the 2x2 antennae in the iPhone X and X R.

The iPhone X S Max shipped with iOS 12 as its original operating system and is supported by iOS 16.

Trivia
The new additions made the iPhone X lineup the largest numerically-named series of iPhones, tied with the iPhone 5 and 6 lineups (until the iPhone 12, 13, and 14 series were each released with as many). The four iPhones in the X lineup are:
 * iPhone X
 * iPhone X R
 * iPhone X S
 * iPhone X S Max