Finding the right eye tracker for your needs can be a difficult process. There are many things to consider, all depending on what you want to study, and how you want to study it. Below, we’ve put together a comprehensive listing of many of the variables that you’ll want to consider when investing in an eye tracking unit.

These ten eye trackers are some of the most commonly used in biosensor-based studies, and all can be easily integrated in iMotions with other biosensors.

Tobii X2-30 Tobii X2-60 EyeTech VT3 Mini Gazepoint GP3
Tobii x2-30 Tobii x2-60 EyeTech VT3 mini Gazepoint GP3
Sample Rate 30 Hz (±2 Hz) 60 Hz (±1 Hz) 30/60/120/200Hz 60 Hz
Accuracy 0.4° 0.4° 0.5° 0.5 – 1°
Recovery Time N/A N/A N/A N/A
Mount Type On screen, stand On screen, stand On screen On screen
Screen Size Up to 25″ when mounted (16:9) Up to 25″ when mounted (16:9) Up to 24″ Up to 24″
Distance 40-90cm 40-90cm 40-75cm 50-80cm
Head Movement 50 x 36 cm 50 x 36 cm 31,5 x 22,5 cm 25 x 11 cm
Measures pupil size Yes Yes Yes Yes
Connection Type USB 2.0 USB 2.0, LAN Mini USB USB
Data Processing   PC External Unit Internal PC
Weight 0.2 kg 0.2 kg + unit 0.21 kg 0.14 kg
Dimensions   18.4 x 2.8 x 2.3 cm 18.4 x 2.8 x 2.3 cm 25,4 x 2,6 x 3.2 cm 32 x 4.5 x 4 cm

 

Tobii T60XL Tobii X3-120 Gazepoint GP3 HD EyeTech VT3 XL
Tobii T60 XL Tobii X3-120 Gazepoint GP3 HD
Sample Rate 60 Hz 120 Hz 150 Hz 60 Hz
Accuracy 0.5° 0.4° 0.5 – 1° 0.5°
Recovery Time 300 ms ≤100 ms N/A N/A
Mount Type Built-in screen On screen, stand On screen Stand
Screen Size 24″ (1920 x 1200 pixels) Up to 25″ when mounted (16:9) Up to 24″ Up to 75″
Distance 50-80cm 50-90cm N/A 180 cm and beyond
Head Movement  41 x 21 cm 50 x 40 cm 35 x 22 cm 22.5 x 17 x 30cm
Measures pupil size Yes Yes Yes Yes
Connection Type LAN + VGA/DVI USB 3.0, LAN (External Unit) USB USB
Data Processing Internal PC, External Unit (Accessory) PC N/A
Weight 13 kg 0.12 kg + Unit 0.15 kg 1.8 kg
Dimensions 57.3 x 57.9 x 28.1 cm 32.4 x 2.0 x 1.7 cm 32 x 4,5 x 4,7 cm 96 x 5 x 8

 

Tobii TX300 Tobii Spectrum Smart Eye Aurora Smart Eye Pro
Tobii TX300 Tobii Pro Spectrum Smart Eye Aurora Smart Eye Pro
Sample Rate 300 Hz (±1 Hz) 60 Hz – 600 Hz 60 Hz 60 or 120 Hz
Accuracy 0.4° 0.4° Head rotation 0.3 degrees, Gaze 0.3 degrees Head rotation 0.5 degrees, Gaze 0.5 degrees
Recovery Time 10-165 ms ≤100 ms 1 / frame rate 1 / frame rate
Mount Type Built-in screen Stand / supplied monitor On screen On screen, camera
Screen Size 23″ (1920 x 1080 pixels) 23.8″ 90° – 360° of view, depending on number of cameras
Operating Distance 50-80cm 55-75cm 50 – 80 cm 30 – 300 cm – adjustable with lenses and positioning of cameras
Head Movement  37 x 17 cm 29 x 23 cm 50 x 40 cm 40 x 40 x 50 cm
Pupil size Yes Yes Yes Yes
Connection Type LAN + VGA/DVI LAN USB USB
Data Processing Internal Internal PC PC
Weight 6 kg 5 kg 0.16 kg 0.3 kg (per tracker)
Dimensions 56 x 54 x 24 cm 55 x 18 x 6 cm 12.6 x 2.4 x 2.7 cm 120 x 40 x 40 mm

 

Pupil Labs Glasses Tobii Glasses 2
Pupil Labs Glasses Tobii Glasses 2
Eye Tracking Technique Dark pupil with 3d model Corneal reflection, dark pupil
Sampling Rate 200 Hz 50 Hz or 100 Hz
Calibration Procedure 9-point and 5-point 1 point
Slippage Compensation Yes, 3D eye tracking model Yes, 3D eye tracking model
Pupil Size Relative size in eye camera pixels
(and) absolute size in mm through 3D eye model
Yes, absolute measure

We hope that this listing proves helpful – if you’d like to learn more about why these details can be important for eye tracking research, then download our free eye tracking guide below or contact us to learn more about starting your eye tracking journey.

Eye Tracking Pocket Guide Insert