Table 1.
Eye trackers and their technical specifications
| Eye tracker | EC f (Hz) | #EC | SC res (px*px) | SC f (Hz) | SC FOV (∘*∘) | RS version |
|---|---|---|---|---|---|---|
| Pupil Core 3D | 200 | 2 | 1280 x 720 | 30 | 73 x 63 | Pupil Capture v3.5.1. |
| Pupil Invisible | 66-200 | 2 | 1088 x 1080 | 30 | 82 x 82 | Companion v1.4.14-prod. |
| SMI ETG2 60 | 60 | 2 | 1280 x 960 | 30 | 60 x 46 | SMI ETG 2.7 |
| SeeTrue | 30-60 | 2 | 640 x 480 | 30-60 | 50 x 38 | version: 1.0.7 |
| Tobii G2 | 50 | 4 | 1920 x 1080 | 25 | 82 x 52 | Glasses Contr v1.114.20033 |
| Tobii G3 100 | 100 | 4 | 1920 x 1080 | 25 | 95 x 63 | Glasses Contr v1.11.6 |
EC refers to eye camera; SC refers to scene camera; FOV refers to field of view; RS refers to recording software; 3D in Pupil Core 3D refers to the 3D gaze estimation model; SMI ETG2 60 refers to SMI ETG 2.0; Tobii G2 refers to Tobii Pro Glasses 2 (firmware: 1.25.6-citronkola-0); Tobii G3 100 refers to Tobii Pro Glasses 3 (firmware: 1.26.2+cremla)