# Discover

![](https://developers.google.com/static/vr/images/hero-images/Discover.jpg)

## Platforms

Google offers two mobile VR platforms, Daydream and Cardboard.

- [Daydream](https://developers.google.com/vr/discover/daydream) features high quality mobile VR, ideal for immersive, longer-form experiences.
- [Daydream Standalone](https://developers.google.com/vr/discover/daydream-standalone) features powerful, immersive, mobile VR without the need for a phone.
- [Cardboard](https://developers.google.com/vr/discover/cardboard) features affordable, light-weight, hardware that's easy to hop into, making it perfect for quicker VR experiences.

## Key Concepts

Development in VR requires understanding a number of VR-specific concepts.

- [Asynchronous reprojection](https://developers.google.com/vr/discover/async-reprojection): Learn how Daydream and Daydream Standalone maintain a comfortable, fluid experience even when frames drop.
- [WorldSense tracking](https://developers.google.com/vr/discover/worldsense): Learn how Daydream Standalone tracks the user's head position relative to the virtual world.
- [3DoF vs 6DoF](https://developers.google.com/vr/discover/degrees-of-freedom): Learn about the differences between 3DoF and 6DoF platforms.

## Technologies

Learn more about the technologies that power great VR experiences both with
and without a headset.

- [360° media](https://developers.google.com/vr/discover/360-degree-media) is a way to enhance traditional apps with immersive content.
- [Controllers](https://developers.google.com/vr/discover/controllers): Learn how the Daydream Controller enables you to explore VR environments.
- [Seurat](https://developers.google.com/vr/discover/seurat): Seurat is a scene simplification technology that enables you to take complex 3D scenes and render them efficiently on mobile [6DoF](https://developers.google.com/vr/discover/degrees-of-freedom) VR systems.
- [Resonance Audio](https://resonance-audio.github.io/resonance-audio) is powerful spatial audio technology critical to realistic experiences for AR and VR.