What Is Pixel’s Under-Display Fingerprint Sensor?
The optical fingerprint sensor embedded beneath Pixel 8 and later OLED displays.
Definition: Pixel 8 and later use an optical under-display fingerprint sensor embedded beneath the OLED panel. When you touch the designated area, the screen illuminates the fingertip and a camera beneath the panel captures the fingerprint for authentication. Earlier Pixels (6, 7) used a rear-mounted or side-mounted capacitive sensor instead.
Impact on screen repairs
The optical fingerprint sensor on Pixel 8+ works through the display panel — panel quality directly affects sensor accuracy. Low-quality replacement screens use glass with different optical transmission properties, reducing the clarity of the fingerprint image. The result is degraded recognition rates or complete fingerprint failure. After any Pixel 8+ screen replacement, all fingerprints must be re-registered — this is standard procedure regardless of panel quality. PhoneDoctor uses OEM-grade panels to preserve full sensor performance.
Fingerprint sensor by Pixel model
Pixel 6, 6a, 7, 7a: Rear-mounted capacitive fingerprint sensor. Unaffected by screen replacement.
Pixel 7 Pro: Under-display optical sensor. First Pixel with this technology.
Pixel 8, 8 Pro, 9, 9 Pro: Under-display optical sensor — re-registration required after screen replacement.
Related terms
→ Actua Display — the OLED panel the sensor works through
→ Titan M2 — stores the fingerprint authentication data
→ Oppo In-Display Fingerprint — same optical technology on Oppo phones
→ OLED — the display type the sensor is embedded in
Pixel screen cracked or fingerprint not working?
PhoneDoctor repairs Pixel screens with OEM-grade panels that preserve under-display fingerprint accuracy. Re-registration walkthrough included.