Manual registers and shared PINs cost money every month. Biometric terminals fix that. Choosing between fingerprint and face comes down to three things.
Environment
Dirty or gloved hands, dust and heat make fingerprint readers unreliable. Factories, mills and hospitals should choose face recognition.
Queue at peak time
Face terminals recognise in under a second. For 300 workers arriving in 15 minutes, that difference clears the queue.
Budget
Fingerprint terminals cost less and are perfectly adequate for offices and schools.
Either way
Connect the terminals to cloud software with shifts, overtime, leave and payroll export, and the register disappears for good.