Google is set to address a long-standing issue with its Pixel series by introducing an ultrasonic fingerprint reader in the upcoming Pixel 9. This upgrade aims to resolve the problems associated with the previous under-display optical fingerprint sensors, which have been criticized for being slow and unreliable.
Pixel 9- Key Improvements and Features:

- Ultrasonic Fingerprint Scanner: The Pixel 9 will feature the Qualcomm 3D Sonic Gen 2 (QFS4008) ultrasonic fingerprint scanner, the same model used in the Samsung Galaxy S24 Ultra. This scanner promises faster and more reliable unlocking compared to the optical sensors previously used in Pixel devices.
- Previous Issues: The switch to under-display optical fingerprint scanners started with the Pixel 6, which encountered numerous complaints regarding unlock speed and reliability. Users found the optical scanners to be less accurate, slower, and more sensitive to moisture and dirt.
- Optical vs. Ultrasonic: Unlike optical scanners that require a bright light flash to read fingerprints (problematic in low-light conditions), ultrasonic scanners use sound waves to capture a 3D image of the fingerprint, making them faster, more accurate, and less affected by external conditions.
Variants and Launch Date:
- Pixel 9 Variants: The ultrasonic fingerprint scanner will be included in all Pixel 9 variants except the Fold, which retains its fingerprint scanner in the power button.

- Launch Date: Google has confirmed that the Pixel 9 series will debut on August 13, offering fans and users a short wait to experience these improvements.
Community Reaction:

Photo by Amelia Holowaty Krales / The Verge
- Positive Reception: The move to an ultrasonic fingerprint scanner has been well-received, as it aligns the Pixel 9 with other high-end smartphones known for their reliable biometric security.
- User Expectations: Users are hopeful that the new scanner will significantly enhance the overall unlocking experience, making it faster and more dependable.
The introduction of the ultrasonic fingerprint reader in the Pixel 9 marks a significant improvement in Google’s smartphone lineup, addressing a major pain point for users and bringing the Pixel series closer to its competitors in terms of biometric security and user experience.