Just a few weeks ago, Google announced its first release of Pixel features, which added several software updates, including automatic call screening, better quality video calls in Duo, and more. But now that the update has finally arrived, it seems that Google has infiltrated more new Pixel 4 updates.
The most important of these new features is actually an undocumented change first discovered by XDA Developers that enables Pixel 4 Face Unlock to improve its accuracy over time.
Now, when you use your face to unlock the phone, Pixel 4 sometimes takes a picture automatically and uses it to update its face recognition model, which is safely stored on Pixel 4's built-in Titan M security chip.
This change has been confirmed in recent screenshots of Pixel 4's updated face unlock setting, which includes a new line saying your phone will “occasionally use your recent face unlock images to create enhanced face templates”.
Unfortunately, there is still no schedule for Google adding support to register a second face or requiring someone's eyes to be opened, as Apple does in recent iPhones.
The second update is something Google has briefly mentioned before, but is only now being added to Pixel 4's features: support for dual-frequency GNSS location tracking.
Dual-frequency tracking allows the Pixel 4 to receive two signals instead of one of the GPS satellites at the same time, allowing for much higher location accuracy and quality.
This should be of great benefit to things like Google Maps and should help ensure that you have the most up-to-date and accurate coordinates and directions wherever you are going.
While none of these updates is something we would call game changing, it's good to see a steady series of updates in Pixel 4, enhancing what is arguably the strongest aspect (the software) of Google's home phone line.