Device with Gyroscope for H ad Tracking. If device does not have Gyroscope still the device can be used for viewing 3D bideos with Sidebycope video technology. Head tracking will not work though., Devices with Accelerometer for Orientation based Commands, Devices which support HID devices either with Bluetooth or through USB/OTG for controlling the device while inside the headset we recommend devices with atest qHD resolution for a better visual experience.