Notice: Undefined offset: 1 in /var/www/wp-content/plugins/visitors-online/visitors-online.php on line 425

Notice: Undefined offset: 2 in /var/www/wp-content/plugins/visitors-online/visitors-online.php on line 425
Project Soli - Shanmugam IAS academy in coimbatore
Project Soli


What’s in news?

A radar-based Soli chip was used in the recently launched google pixel 4.

Key data’s:

  • Google Pixel 4 uses a radar-based Soli chip to introduce Motion Sense, a feature that provides similar touchless gesture-based controls.
  • Project Soli was introduced in 2015 which was driven by Google’s Advanced Technology and Projects (ATAP).
  • A radar chip can be used to detect hand movements and gestures to interpret what they could mean.
  • Google figured out how to reduce the size of this radar chip fitted in front of the smartphone, still ensuring accuracy.
  • Google’s Soli is a purpose-built chip to track your motion on a microscopic scale.
  • It uses miniature radar (8mm x 10mm) for real-time motion tracking of the human hand; it’s able to track sub-millimetre motion at high speeds with great accuracy.
  • The size reduced radar can understand human motions at various scales, from the tap of a finger to the movements of the body. 
  • The chip is used to collect the raw data of hand gestures and then interpret them correctly for the right commands.
  • The Soli is not a camera and it cannot be used to capture any visual images.

ML model:

  • The soli rely on custom-built machine learning (ML) model.
  • This model is used to understand a large range of possible movements
  • The data from the sensor will not sent to any server.

How it operates?

  • The radar chip emits electromagnetic waves in a broad beam.
  • When a human hand interacts with this, some of these waves are reflected back to the antenna.
  • The ML-model quickly interprets the properties of the reflected signal to carry out the required command.


  • This help the users of Google Pixel 4 to snooze the alarm or skip songs or go back to the last song without touching the screen.
  • It is optionable. The user can turn Motion Sense on or off through settings.

Why India opposing this radar?

  • The Soli radar chip works on the 60 GHz spectrum frequency, which is not commercially usable in India.
  • The 60 GHz band is also known as V-band or WiGig band.


Links to note:

1 Comment

  1. Hugh Koloc 04/06/2020

    I just want to tell you that I am beginner to blogging and definitely liked your web page. Most likely I’m likely to bookmark your website . You actually have great writings. Kudos for sharing with us your blog site.

Leave a Comment

Your email address will not be published.


Shop Youtube