Hi @randr, we only now advertise the two models of Tobii Gaming eye trackers, the EyeX and the C4. We not present a feature comparison chart, but you can get the specifications of each tracker via their own unique product page
@ https://gaming.tobii.com/product/tobii-eyex/ ^
@ https://gaming.tobii.com/product/tobii-eye-tracker-4c/
We did produce another tracker (the REX) some time ago, but that is not deprecated and no longer advertised.