The Valve Index is a high‑fidelity virtual reality (VR) headset developed, manufactured, and sold by Valve Corporation. Announced on 30 April 2019, it was released to the market on 28 June 2019 with an introductory price of US $999 for the full kit, which includes the headset, two base stations, and a pair of Valve Index Controllers (formerly known as “Knuckles”).
Hardware and specifications
- Displays: Dual LCD panels each with a resolution of 1440 × 1600 pixels, yielding a combined resolution of 2880 × 1600. The displays support refresh rates of 80 Hz, 90 Hz, 120 Hz, and an experimental 144 Hz mode, employing low‑persistence global backlight illumination (≈0.33 ms).
- Optics: Canted Fresnel lenses with full‑RGB per‑pixel color reproduction; adjustable horizontal eye relief for inter‑pupillary distances ranging from 58 mm to 70 mm. The headset provides an estimated field of view of about 108°.
- Audio: Integrated speakers driven by “binaural” drivers, a 3.5 mm audio jack, and a built-in dual‑microphone array.
- Tracking: Utilises Valve’s Lighthouse 2.0 external base stations (compatible with HTC Vive and Vive Pro base stations) for six‑degree‑of‑freedom positional tracking of both headset and controllers.
- Connectivity: A DisplayPort 1.2 link for video, a USB 3.0 port for data and power, and an expansion port used by the controllers.
Controllers
The Valve Index Controllers feature individual finger tracking via capacitive sensors on each fingertip, allowing the system to detect hand gestures such as pointing, grasping, and pinching. They also include analog thumbsticks, trackpads, triggers, grip buttons, and a menu button.
Software ecosystem
The headset operates on Windows and Linux platforms through SteamVR, Valve’s software layer for VR content. It is backward‑compatible with HTC Vive peripherals and supports the full library of SteamVR titles. Notably, the VR game Half‑Life: Alyx was bundled with the Index at launch and made available free to owners of the headset.
Market performance and legacy
Sales estimates indicate that approximately 149 000 Valve Index units were sold in 2019, with a significant surge after the release of Half‑Life: Alyx. By early 2020 the device was sold out in most regions except Japan. Production delays caused by the COVID‑19 pandemic limited availability during the launch period.
The Valve Index was discontinued on 12 November 2025. Its announced successor, the Steam Frame, is slated for release in early 2026 and will continue Valve’s involvement in PC‑based VR hardware.
References
- Valve Corporation product announcements (April 2019; June 2019)
- Technical specifications listed on Valve’s official website and SteamVR documentation
- Sales and market data reported by industry analyses (2020–2025)
- Discontinuation notice (November 2025) and successor announcement (Steam Frame)
