Google showed off Pixel 4. When previously showing its form, the internet search giant is now showing new features on its newest cellphone.

Like rumors circulating, Pixel 4 is equipped with face to unlock feature using an infrared sensor. Indeed this feature is not a new thing, many cellphones have presented it first.

But with the radar chip provided by Project Soli, it will proactively turn on the face unlock sensor to unlock the cellphone. Project Soli itself is a motion control technology that was developed by the Google Advanced Technology and Projects (ATAP) team since 2015.

"So when the face unlock sensor and algorithm recognizes the user, the cellphone will open immediately when it is lifted, all in one motion," explained Google.

Face unlock at Pixel 4 will work in all orientations. Later this feature can be used for payment and application authentication.


Pixel 4 also carries movement-based control technology. Google places a special radar located in the upper bezel.

The radar will scan for the slightest movement. Combined with unique algorithms that recognize and detect movement. This allows users to change music tracks, delay alarms or reject incoming calls with just a handshake.

Security and Privacy

The presence of the face unlocks feature made by Google indeed raises concerns about security and privacy. But facial recognition technology used at Pixel 4 is certainly processed on the device, so image data will not come out of the cellphone.

This means that facial images used to unlock are never stored or shared with other Google services. Face data is stored safely on the Titan M security chip.


The same thing with the Soli data reporter. All processes are carried out on cellphones and not stored or shared with other Google services.

Pixel 4 is predicted to be available next October. This phone will be powered by Snapdragon 855 Plus SoC, 6GB RAM and run Android Q.