Many virtual reality devices are available on the market. Here is a brief overview of some of the most popular ones: 1. Oculus Rift: The Oculus Rift is currently the most popular VR headset on the market. It is available in different shapes and sizes, starts from a few hundred dollars, and lets you experience 360 degrees of immersive video or games. 2. HTC Vive: The HTC Vive is similar to the Oculus Rift but better for gaming because it offers a more immersive experience and allows users to walk around virtual reality spaces. 3. PlayStation VR: PlayStation VR is a gaming-centric virtual reality headset that lets you play games on PlayStation consoles like the PS4. 4. Google Daydream View: Google's Daydream View is an affordable virtual reality headset that works with any smartphone with a gyroscope, accelerometer, and HDMI output.