Motorola after acquired by Google, it has always updated its devices with latest version of Android. Sometimes Motorola devices got their updates even before Nexus devices. With recent version of Android Lollipop, Motorola surprised everyone by pushing the update to its flagship Moto X (2014) Phone even before some Nexus devices. Other mid range version of Moto series like Moto G (2014) and Moto G (2013) got treated with Lollipop feast. The one phone left in the row is Moto X 2013.
More . . . Moto X 2013 (original) Lollipop update delayed – Reason