Integrating customer feedback from existing Tobii EyeX gamers, we made five key advancements for the Tobii Eye Tracker 4C.
- Adding head tracking functionality, making it the only gaming device to provide simultaneous head and eye tracking capabilities, which provides a superior experience in simulator game titles like Elite: Dangerous.
- Adding Tobii EyeChip, the world's first ASIC, to reduce CPU load and power consumption from the host computer.
- Decreasing the size and visibility of the illuminators.
- Moving to an integrated USB 2.0 cord (USB 2.0 BC 1.2) to increase the amount of compatible host devices.
- Further advancing its industry-leading eye tracking quality with additional performance enhancements.
| Tobii Eye Tracker 4C | Tobii EyeX | |
| Size | 17 x 15 x 335 mm (0.66 x 0.6 x 13.1 in) |
20 x 15 x 318 mm (0.8 x 0.6 x 12.5 in) |
| Weight | 95 grams (0.21 lbs) | 91 grams (0.2 lb) |
| Recommended Max Screen Size | 27 inches with 16:9 Aspect Ratio 30 inches with 21:9 Aspect Ratio |
27 inches |
| Operating Distance | 20 - 37" / 50 - 95 cm | 20 - 35" / 50 - 90 cm |
| Track Box Dimensions | 16 x 12" / 40 x 30 cm at 29.5" / 75 cm | 16 x 12" / 40 x 30 cm at 29.5" / 75 cm |
| Tobii EyeChip | Yes | No |
| Connectivity | USB 2.0 (integrated cord, USB 2.0 BC 1.2) | USB 3.0 (separate cord) |
| USB Cable Length | 80 cm | 180 cm |
| Head Tracking | Yes (not powered by EyeChip) | No |
| OS Compatibility | Windows 7, 8.1 and 10 (64-bit only) |
Windows 7, 8.1 and 10 (64-bit only) |
| CPU Load | 1% (Core i7)* |
10% |
| Power Consumption | 2.0 Watt** | 4.5 Watt |
| USB Data Transfer Rate | 100KB/s | 20MB/s |
| Frequency | 90 Hz | 70 Hz |
| Illuminators |
Near Infrared (NIR 850nm) Only |
Backlight Assisted Near Infrared (NIR 850nm + red light (650nm)) |
| Tracking Population | 97% | 95% |
* Head tracking is not powered by the EyeChip so it may increase your CPU load.
** The average power consumption during usage is 2.0W, but the eye trackers power consumption can spike up to 5-6W depending on the use case. For example, when the illuminators first turn on, the consumption can briefly spike (matter of milliseconds) at around 5-6W. The Tobii Eye Tracker 4C officially works with USB 2.0 BC1.2 which can handle spikes up to 7.5W.
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