The Moto X4 was introduced in August 2017. It featured a 5.2-inch 1080p IPS display compared to Moto X 2014, and 3, 4, or 6 GB of RAM depending on versions. There were three iterations: a retail one from Motorola, an Android One version from Google, and an Amazon Prime edition. Not to be confused with older Moto X models, this phone does not carry on the older Moto X line, and it did not offer some older Moto X exclusive features such as the Moto Maker. The phone came with Android Nougat 7.1.1 and Moto features, with support of 'A/B Partitions' and 'seamless update'. It was updated to Android Oreo and Android Pie in late 2017 and 2018. It was succeeded by the Moto One lineup since 2018.