Eye tracking products
Tobii Pro X3-120

Screen-based eye tracker capturing gaze data at 120 Hz. This ultra-slim, powerful research system is perfect for studies outside of the lab, and a new generation of eye tracking technology makes it possible to track more people than ever. It is designed for exhaustive, detailed fixation-based research.

Add to Inquiry

Fully-mobile, powerful for detailed research

The Tobii Pro X3-120 is our latest screen-based eye tracker and has a sampling rate of 120 Hz. It features our latest eye tracking technology advancements.

The system provides exceptional flexibility and accommodates a wide array of human behavior studies. The ultra-slim, light design makes for a compact solution, ideal for studies in authentic research environments. The Pro X3-120 is capable of tracking more people than ever before, and the discrete form factor promotes unobtrusive data collection.

The system shows exactly where people are looking and, with a sampling rate of 120 Hz, it is designed for detailed research into the timing and duration of fixations. The Pro X3-120 is perfect for both qualitative and quantitative research, e.g. calculation of different eye tracking metrics.


Versatile for a broad spectrum of studies

The Pro X3-120 can be used with a variety of screens – laptops, PC monitors, tablets, or TVs.

The system can be mounted on screens up to 25" in size. We offer accessories in order to make research with mobile devices easier. The Pro X3-120's high-quality tracking of large gaze angles (up to 36°) allows you to also study large projections.

There are additional accessories to accommodate studies of real-world stimuli, such as physical objects or people.


Easy to use

Simple setup, configuration, and automation promote efficient eye tracking studies.

Attaches easily with supplied mounting solutions for various screens
Works in a controlled environment using the supplied external processing unit or connects directly into your PC (using a USB 3.0 cable)
Simple configuration for Windows 7 and 8.1
Supports Mac OS X and Linux using the external processing unit
Calibrates subjects quickly and automatically


Captures natural behavior

Subjects can be tracked while moving their head freely positioned at a natural distance from the screen, and the device is hardly noticed. This creates a distraction-free test environment, promoting natural human behavior.

Tolerates a variety of head movements
Collects highly-accurate data at close distances, such as a laptop, to longer distances, such as an ATM
Blends perfectly into the research environment with its ultra-slim, discreet design
Stable and reliable eye tracking calibrations eliminate the need for recalibration


Accurate and robust tracking

The system's exceptionally-high accuracy and unparalleled tracking capability in real-life conditions ensure high-quality data while allowing you to work with a wide cross-section of your population.

Created with the latest technology advancements from Tobii Pro
Delivers exceptionally accurate gaze-position data within the entire tracking box
Tracks more people than ever before, regardless of ethnicity or corrective lenses
Detects eyes instantly with minimum data loss during blinks or if subjects look away
Maintains accuracy and tracking robustness during subjects' head movements and in ambient light
Alternates between bright and dark pupil eye tracking in a predefined, systematic way

Fully-mobile, powerful for detailed research

The Tobii Pro X3-120 is our latest screen-based eye tracker and has a sampling rate of 120 Hz. It features our latest eye tracking technology advancements.

The system provides exceptional flexibility and accommodates a wide array of human behavior studies. The ultra-slim, light design makes for a compact solution, ideal for studies in authentic research environments. The Pro X3-120 is capable of tracking more people than ever before, and the discrete form factor promotes unobtrusive data collection.

The system shows exactly where people are looking and, with a sampling rate of 120 Hz, it is designed for detailed research into the timing and duration of fixations. The Pro X3-120 is perfect for both qualitative and quantitative research, e.g. calculation of different eye tracking metrics.


Versatile for a broad spectrum of studies

The Pro X3-120 can be used with a variety of screens – laptops, PC monitors, tablets, or TVs.

The system can be mounted on screens up to 25" in size. We offer accessories in order to make research with mobile devices easier. The Pro X3-120's high-quality tracking of large gaze angles (up to 36°) allows you to also study large projections.

There are additional accessories to accommodate studies of real-world stimuli, such as physical objects or people.


Easy to use

Simple setup, configuration, and automation promote efficient eye tracking studies.

Attaches easily with supplied mounting solutions for various screens
Works in a controlled environment using the supplied external processing unit or connects directly into your PC (using a USB 3.0 cable)
Simple configuration for Windows 7 and 8.1
Supports Mac OS X and Linux using the external processing unit
Calibrates subjects quickly and automatically


Captures natural behavior

Subjects can be tracked while moving their head freely positioned at a natural distance from the screen, and the device is hardly noticed. This creates a distraction-free test environment, promoting natural human behavior.

Tolerates a variety of head movements
Collects highly-accurate data at close distances, such as a laptop, to longer distances, such as an ATM
Blends perfectly into the research environment with its ultra-slim, discreet design
Stable and reliable eye tracking calibrations eliminate the need for recalibration


Accurate and robust tracking

The system's exceptionally-high accuracy and unparalleled tracking capability in real-life conditions ensure high-quality data while allowing you to work with a wide cross-section of your population.

Created with the latest technology advancements from Tobii Pro
Delivers exceptionally accurate gaze-position data within the entire tracking box
Tracks more people than ever before, regardless of ethnicity or corrective lenses
Detects eyes instantly with minimum data loss during blinks or if subjects look away
Maintains accuracy and tracking robustness during subjects' head movements and in ambient light
Alternates between bright and dark pupil eye tracking in a predefined, systematic way

Gaze sampling frequency: 120 Hz
Trackability: 97%
Tracking robustness: 92%
Accuracy: 0.4°
Precision: 0.24°
Freedom of head movement: Width x height: 50 cm x 40 cm (19.7? x 15.7?) @ 80 cm operating distance: 50 – 90 cm (19.6? – 35.4?)

Latency Total system latency: < 11 ms
Gaze recovery time: For blinks: immediate. After lost tracking

Recommended screen size: Up to 25" (16:9)
Tracking technique: Binocular, dark and bright pupil tracking combination
Data output (for each eye): Timestamp, Eye position, Gaze point, Pupil diameter, Validity code