Tobii Pro Spark
Tobii Pro Spark

Enter the world of eye tracking

A powerful screen-based eye tracker, capturing gaze data at 60 Hz. With this affordable system, anyone can easily enhance their research with data that illuminates human attention and intent.


Small but powerful

This is our smallest eye tracker with advanced streams and a sampling rate of 60Hz. Supported by Tobii Pro Lab and Tobii Pro SDK, it has the power to capture high-quality attention data. With Tobii Academy, Tobii Connect, and our customer care, you have a completely supported research solution.

Tobii Pro Spark

Portable and easy to use

The manageable size and carrying case make it easy to pack up and go. Tobii Pro Spark has fully embedded processing and is easy to connect via USB or USB-C, with no additional power supply required. This single-camera eye tracker functions on screens up to 27” and is compatible with all platforms, including Windows, macOS, and Linux.

Tobii Pro Spark

Our most affordable solution

Whether you're applying for limited research funds or taking your first steps in eye tracking research, affordability is paramount. Tobii Pro Spark puts eye tracking within reach for countless researchers looking to enhance their research.

Tobii Pro Spark

Robustness and quality

No matter which eye tracker you choose, accuracy and reliability are our number one priority. Tobii Pro Spark is no exception, offering robust tracking capabilities regardless of corrective lenses or ethnicity. We also guarantee high tolerance of head movement under various lighting conditions, and tracking is resumed quickly if the participant looks away.

Tobii Pro Spark

Who is it for?

We wanted to create an eye tracker that serves scientific researchers, that is also accessible for commercial research. Both fields deserve accuracy, flexibility, and powerful insights, which is why we designed a portable, powerful, and versatile addition to our portfolio.

Scientific research

Tobii Pro Spark is perfect for scientific researchers who want to understand visual attention on a deeper level. Task completion and decision-making can be better understood and explored through attention data, which provides fresh perspectives and insights into education research, psychology research, teaching, engineering, technology design, and more.

Commercial research

Consumer insights are the name of the game in marketing research. Most companies know what their customers are doing, but eye tracking allows you to cut deeper into the why. Whether you’re testing the impact of your packaging or your advertisements, attention data can illuminate your customer in new ways.


Technology to spark your research

Tobii Pro Spark offers robust and reliable data at an affordable price, making powerful eye tracking technology available to more people.

  • Sampling rate of 60 Hz designed for fixation-based research

  • Offers fully embedded processing of eye tracking data

  • Connects via a USB port directly to your computer

  • Works regardless of corrective lenses

  • Demonstrates robust tracking regardless of ethnicity or age

  • Tolerance for head movements and varied lighting conditions

  • Minimal data loss during blinks or when participants look away

  • Works on screens up to 27” in size

  • Tobii Pro Spark provides precise tracking results that are robust against variations in illumination and head movements. It is an excellent solution to study learning and problem-solving strategies and to evaluate instructional materials even in group settings.

    Dr. Stefan Küchemann

    Group Leader AI in Physics Education, Faculty of Physics, Chair of Physics Education, LMU Munich


Technical specifications

Eye tracking technique Video-based pupil- and corneal reflection eye tracking with dark and bright pupil illumination modes. One camera captures images of both eyes for accurate measurement of eye gaze and eye position in 3D space, as well as pupil diameter.
Sampling frequency 60 Hz (default) or 33 Hz
Precision0.26° RMS (ideal conditions) ²
Accuracy 0.45° (ideal conditions) 
Binocular eye tracking Yes
Eye tracker latency 1 frame (immediate)
Blink recovery time 1 frame (immediate)
Gaze recovery time 50 ms
Data sample output¹ Timestamp Gaze origin Gaze point Pupil diameter
Eye openness data stream Not available
Eye image data stream Not available
TTL input stream Not available
Tracker and client time synchronization Integrated between the eye tracker time domain and the client computer time domain.
  1. For more information about output data and the supplementary data stream, please read the Tobii Pro SDK documentation. 
  2. Using built in filtering
Head movement tolerance¹Good. One-camera system provides an accurate calculation of the data and a good level of precision.
Freedom of head movement¹ (at 50 cm distance)  Width x height: 20 cm x 20 cm (7.9’’ x 7.9’’) (At least one eye tracked) 
Freedom of head movement¹ (at 65 to 80 cm distance)  Width x height: 35 cm x 35 cm (13.8’’ x 13.8’’) (At least one eye tracked) 
Operating distance (mounted on screen)  45 to 95 cm (29’’ to 37'') from the eye tracker 
Optimal screen size  Up to 27” (16:9 aspect ratio) 
  1. Describes the region in space where the participant can move their head and still have at least one eye within the eye tracker’s field of view (trackbox) at the specific distance.
Software and framework compatibility Tobii Pro Lab Tobii Pro Eye Tracker Manager Tobii Pro SDK Any application built on the Tobii Pro SDK
Operating system Windows, macOS, Linux
Hardware versions Single product version: 60 HZ
Dimensions 285 x 15 x 22 mm (11.2" x 0.59" x 0.47'') 
Weight97 g (3.4 oz.)
ConnectorsUSB 2.0 Type-A, 80 cm (31") cable (USB Type-C male to Type-A female adapter included in the package)
Data processing1 Tobii EyeChip™ ASIC with fully embedded data processing
Eye tracking cameras 1 x Tobii EyeSensor™ Modules
IlluminatorsDark PupiI Illumination Modules Bright Pupil Illumination Modules
Power consumptionTypical power consumption < 2.0 W
Power optionsDirectly via USB Type-A connector (with or without the USB Type-C male to Type-A female adapter)
Operating systemWindows 10, Windows 11  macOS 10.15 Catalina and 12 Monterey Linux Ubuntu 20.04 
CPU1 GHz, 2 cores 
RAM2 GB RAM memory* *Software for eye tracking research may require higher RAM 
PortUSB port * Type-A or Type-C (with included adapter)  * The average power consumption during usage is 2.0W, but the eye trackers power consumption can peak up to 5-6W depending on the use case. For example, when the illuminators first turn on, the consumption can briefly peak (a matter of milliseconds) at around 5-6W. The Tobii Pro Spark officially works with USB 2.0 BC1.2 which can handle spikes up to 7.5W.
Tobii Pro SparkTobii Pro FusionTobii Pro Spectrum
Precision¹0.26° RMS (ideal conditions)³0.04° RMS at optimal conditions² 0.2° RMS at optimal conditions (raw signal) 0.01° RMS at optimal conditions² 0.06° RMS at optimal conditions (raw signal)
Accuracy 0.45° (ideal conditions) 0.3° 0.3°
Head movement tolerance Good (Single Camera)Excellent (Dual camera)Excellent (Dual camera)
Optimal screen size Up to 27” (16:9 aspect ratio)24” 24”
Freedom of head movement width x height @ 65cm distance (either eye) 35 x 35 cm 40 × 25 cm 34 x 26 cm
Freedom of head movement width x height @ back of headbox (either eye) 35 x 35 cm45 x 30 cm @80 42 x 26 cm @75
Operating distance (cm in Z direction) 45 to 95 cm50-80 cm 55-75 cm
Tracker setup optionsTracker mounted at tripod, allows for even larger screens and physical objects to be tracked.Tracker mounted at tripod, allows for even larger screens and physical objects to be tracked. (a) Screen and eye tracker mounted together (b) Standalone eye tracker (c) Tracker and screen mounted on any standard VESA mount (d) Eye tracker used with external monitor
  1. Tobii uses an extensive test method to measure and report performance and quality of data. Please download the Data quality test report for more detailed information.
  2. Applying Savitzky-Golay filtering (settings in Tobii Data quality test report)
  3. Using built in filtering.
  4. For larger screens, the limiting parameter is the quality of the gaze accuracy at the upper corners of the screen when the user sits close to the screen



  • We investigate individual differences in large and diverse samples, such as the thousands of museum visitors who have enjoyed our public eye-tracking booth so far. Challenging settings like this require everything we found in Tobii Pro Spark - extremely robust and user-friendly eye-tracking at a spatial accuracy that rivals any other research device.

    Dr. Benjamin de Haas

    PI, Department of Psychology, Justus-Liebig-University Giessen, Germany

Fields of use

Girl doing online schooling
Scientific research

Learning and education

Eye tracking data help researchers develop diagnostic tools and instruction material for innovative learning.

Learn more
Car console - Driver
Scientific research

Human factors and engineering

Eye tracking helps us to see how humans are engaging with each system, machine and process. Understanding the human element is key when developing systems.

Learn more

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