August 13 is Google's Pixel 9 family launch date, which is around two months ahead of schedule. We had earlier hypothesized that this may be a leak prevention tactic, but after two hands-on films in the last few days, it's obvious it's not working.

In any case, a recent report states that ultrasonic in-display fingerprint sensors would be included in the Pixel 9, Pixel 9 Pro, and Pixel 9 Pro XL. All Pixel devices had previously employed optical in-display scanners, but it looks like they are now moving to the same sensor type that Samsung uses for the Galaxy S24 series.

Qualcomm is the maker of the 3D Sonic Gen 2 (QFS4008) sensor. This is a positive step forward since ultrasonic sensors read your fingerprint without needing to light up the area of the display that your finger touches. In addition, they are often quicker and more dependable than optical ones. Oh, and they also function even when your finger is wet.

According to the same report, the Pixel 9 Pro Fold will continue to use a side-mounted capacitive sensor that is integrated into its power button.