Android's Identity Check feature will be enhanced in the Android 16 QPR2 update, requiring biometric-only authentication for apps using the biometric prompt, eliminating screen lock credentials as a fallback. This aims to improve security for sensitive applications by preventing unauthorized access, particularly in untrusted environments. The update expands Identity Check to more applications, ensuring that access necessitates biometric verification. Users can activate this feature through Settings on their Pixel devices. Future updates may allow the use of a smartwatch as a trusted unlock mechanism, bypassing biometric authentication when connected.