Project Soli

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Project Soli
Type Input Device, Gesture Tracker
Subtype Hands/Fingers Tracking
Developer Google
Update Rate 3,000 - 10,000 fps
Sensors 60GHz RF transmitters
Project Soli is an input technology developed by Google ATAP. It utilizes radar to detect the movements and gestures of your hands and fingers. Shaped as a chip the size of a quarter, Soli can be embedded in most wearables and electronic devices. The initial applications for the radar system are smartphones and smartwatches.

Project Soli was revealed during Google I/O 2015 on May 29, 2015.

How Does It Work?

Soli is a 60GHz RF transmitter that uses board beam radar to measure everything from spectrogram to doppler image to IQ. Using these information, The tiny circuit board is able determine the hand size, motion and velocity. It then uses machine-learning to translate these movements to pre-programmed commands.

Soli functions within 60GHz radar spectrum at up to 3000 to 10,000 fps.

The software API for Soli will be released late 2015.


  • Translates hand gestures and finger movements into commands for your smart devices.
  • The sensor can track sub-millimeter motions at high speed and accuracy.
  • Small gestures such as turning of a nub or sliding of a page work fine.
  • Works through materials such as fabric.

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