G4 Pro is equipped with a fully upgraded version of the Android 9.0 system, adding new features such as PoE powersupply, and it is compatible with 4G network, satisfying various market needsincluding Europe, the Middle East, Africa, South Korea, Thailand, and India.

Resembles G4, G4 Pro is equipped with ZKTeco’s enhanced Visible Light Facial Recognition technology. Also, G4 Pro has  installed a new mini QR code reader to scan T&A / A&C dynamic QR codes on the ZKBioSecurity mobile application. The reader supports QR code, PDF417, Data Matrix, MicroPDF417, Aztec scanning in third-party development projects.

ZKTeco also provides an LCDP tool which is used for 3rd party applications integration. It includes simplified bottom hardware interface, algorithm interface and some upper business logic and conguration, which can make development more easier and more efficient.