The device, which looks like a pair of binoculars and is attached to a computer, works by flashing a green light into the pupil three times and measuring the speed of the pupil's contraction and ...
Ingenico’s Axium CX9000 has two screens, a 1.56-inch one for the employee and a customer-facing 8-inch screen for customers.
You program it in the same security setting as the fingerprint scanner, and it only takes one scan for the Note 7 to record your iris. There's an infrared sensor on the front that scans your eye.