Google Daydream is a virtual reality platform developed by Google that is built into the Android mobile operating system.
Compatible phones that follow the platform’s software and hardware specifications are used in the Google Daydream View VR headset. Wikipedia
Release date: November 10, 2016
Operating system: Native: Android (Nougat and up)
Introductory price: Daydream View first-gen: US$79; Daydream View second-gen: US$99
Predecessor: Google Cardboard