Discrete HMD

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Discrete HMD also known as Tethered HMD is a type of mostly virtual reality head-mounted display that supplies everything required for an immersive VR experience aside from the processing. It contains display, lenses, rotational tracking, positional tracking, audio and advanced input. For processing, Discrete HMDs are connected to PCs through cables. Certain Discrete HMDs such as the PlayStation VR use consoles instead of PCs for processing. While this type of HMD is less mobile than its 2 counter parts, it is able to deliver the best VR experience. To deliver positional tracking, Discrete HMDs utilize external sensors that are placed external to the user or HMD. They also have custom Input Devices built with 6DOF tracking in mind. Note that newer Discrete HMD such as Pico Neo 2 is not tethered to its PC, instead it wirelessly streams from the PC to the HMD.

Discrete HMDs require powerful PCs to run their demanding games and software. Not counting the cost of PC, Discrete HMDs is cheaper than Slide-on HMDs and more expensive than Integrated HMDs.

DevicesRequiresDisplayResolutionRefresh RateField of ViewTrackingRotational TrackingPositional TrackingUpdate RateLatencyInputConnectivity
ANTVRPC
Xbox One
PlayStation 4
Smartphone		Aspherical lens1920 x 1080100° diagonalDegrees of freedomGyroscope
Magnetometer
Accelerometer		Transformable ControllerU2B (USB-2.4GHz and Bluetooth) module
Acer Windows Mixed Reality HeadsetPCDual LCD display2880 x 1440 (1440 x 1440 per eye)95 Degree Horizontal6DOFGyroscope
Accelerometer
Magnetometer		Inside-out trackingMotion to Photon: Less than 10msKeyboard/Mouse
Xbox One GamePad
Motion Controllers		HDMI
USB
Asus HC102PCDual LCD display2880 x 1440 (1440 x 1440 per eye)90Hz95 Degree6DOFGyroscope
Accelerometer
Magnetometer		Inside-out trackingLowAsus HC102 Motion ControllerHDMI
USB
CastARPC2 Micro-Projectors on top2560x720
1280 x 720 per eye		120 Hz65° (horizontal)6DOFGyroscope
Magnetometer		Tracking CameraRotational: 1000 Hz
Positional: 120 Hz		Tracking: 8.3msWand Controller
RFID tags		HDMI
USB
Dell VisorPCDual LCD display2880 x 1440 (1440 x 1440 per eye)90Hz110 Degree6DOFGyroscope
Accelerometer
Magnetometer		Inside-out trackingLowKeyboard/Mouse
Xbox One GamePad
Dell Visor Motion Controller		HDMI
USB
FOVEPC5.8 inch low persistence OLED2560 x 144060 - 90 Hz100°Eye TrackingIMUTheir own systemEye Tracking: 120 FPSUSB 3.0
Display port
3.5mm headphone port
HP Reverb G2Dual LCD 2.89’’ diagonal with Pulse Backlight technology2160 x 2160 pixels per eye90Hz~114 degrees
Fresnel-Aspherical		6DOF
Inside/out		HP Reverb G2 ControllersUSB 3.0 type C
BlueTooth
HTC VivePCDual Panel2160 x 1200 (1080 x 1200 per eye)90 Hz110° (diagonal)6DOFGyroscope
Accelerometer
Laser Position Sensor		Base StationsRotational: 1000Hz
Positional: 60Hz		7ms (no load)
15ms (medium load)
Motion to Photon		Controllers in both hands2 HDMI ports
2 USB ports
1 headphone jack
HTC Vive Developer EditionsPCDual Panel2160 x 1200
1080 x 1200 per eye		90 Hz110° (diagonal)6DOFGyroscope
Accelerometer
Laser Position Sensor		Base Stations????Controllers in both hands2 HDMI ports
2 USB ports
1 headphone jack
HTC Vive ProPCDual Panel2880 x 1600 (1440 x 1600 per eye)110° (diagonal)6DOFGyroscope
Accelerometer
Laser Position Sensor		Base StationsRotational: TBC
Positional: TBC		Motion to Photon
TBC		Controllers in both handsDisplayPort 1.2
USB-C 3.0 port
Bluetooth (Version TBD) (TBD: 1 headphone jack???)
LG 360 VRLG G51.88" IPS LCD x 2 EA
920 x 720 per Eye
639 ppi Real RGB		960x720 pixels at 693ppi (per eye)60HzMotion to Photon: over 50ms
LG VR HeadsetPCOLED
Single panel		1440×1280 per eye90Hz110 DegreeLighthouseLowVive Controller
LG Controller		DisplayPort
USB
Lenovo ExplorerPCDual LCD display2880 x 1440 (1440 x 1440 per eye)90Hz110 Degree6DOFGyroscope
Accelerometer
Magnetometer		Inside-out trackingLowKeyboard/Mouse
Xbox One GamePad
Lenovo Explorer Motion Controller		HDMI
USB
OSVR HDK1PC5.5 inch LCD (1.0)
5.5 inch low-persistence OLED (1.1 - 1.3)		1920 x 1080
960 x 1080 per eye		60 Hz (1.0 - 1.2)
120 Hz (1.3)		100° (nominal)
90° (H and V)		Degrees of freedom
6DOF		Gyroscope
Accelerometer
Magnetometer		IR-LED faceplate and External Infrared CameraPositional: 100 Hz
Rotational: 400Hz		??Leap Motion VR
Gamepads
Mouse and Keyboard		1 external and 2 internal USB 3.0 ports
OSVR HDK2PC5.5 inch OLED2160 x 1200 (1080 x 1200 per eye)110 degreesDegrees of freedom
6DOF		Gyroscope
Accelerometer
Magnetometer		???Rotational: 400Hz
Positional: 100 Hz		?????1 external and 2 internal USB 3.0 ports
Oculus RiftPCDual OLED Panels2160 x 1200 (1080 x 1200 per eye)90 Hz110° (diagonal)6DOFGyroscope
Accelerometer
Magnetometer		Oculus SensorRotational: 1000Hz
Positional: 60Hz		Motion to Photon: less than 5msXbox One controller
Oculus Touch
Oculus Remote		HDMI
USB
Oculus Rift DK1PC7 inch LCD1280 x 800
640 x 800 per eye		110° (Nominal)Degrees of freedomGyroscope
Accelerometer
Magnetometer		NoneRotational: 1000 HzTracking: 2ms
End-to-end: 50-60ms
Oculus Rift DK2PC5.7 inch OLED (PenTile)1920 x 1080
960 x 1080 per eye		75 Hz
72 Hz		100° (nominal)6DOFGyroscope
Accelerometer
Magnetometer		Separate Camera
Near Infrared CMOS Sensor		Rotational: 1000 Hz
Positional: 60 Hz		~30 msUSB
HDMI
Oculus Rift SLCD1280×1440 per eye80Hz6DOFOculus InsightOculus TouchHeadset cable required
PlayStation VRPlayStation 45.7 inch OLED1920 x 1080
960 x 1080 per eye		90 Hz100°6DOFAccelerometer
Gyroscope		PlayStation Camera?Less than 18msDualShock 4 Wireless Controller
PlayStation Move Motion Controller
PlayStation VR Aim		HDMI
USB
Samsung OdysseyPCDual LCD display1
440 x 1
600 per eye		60-90Hz110 Degree6DOFGyrometer
Accelerometer
Compass
Proximity Sensor
IPD Sensor		Inside-out trackingLowSamsung Odyssey Motion ControllerHDMI
USB
StarVRPCDual 5.5" LCD Quad HD Displays5120 x 1440 (2560 x 1440 per eye)210° (horizontal)
130° (vertical)		6DOFGyroscope
Accelerometer
Magnetometer		External optical sensor with fiducial markers
Valve Index1440x1600 RGB LCDs80/90/120/144Hz~120-130 degreesValve Index ControllersUSB 3.0
DisplayPort 1.2

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