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 X2-30Tobii X2-60EyeTech VT3 MiniGazepoint GP3
Sample Rate30 Hz (±2 Hz)60 Hz (±1 Hz)30/60/120/200Hz60 Hz
Accuracy0.4°0.4°0.5°0.5 – 1°
Recovery TimeN/AN/AN/AN/A
Mount TypeOn screen, standOn screen, standOn screenOn screen
Screen SizeUp to 25″ when mounted (16:9)Up to 25″ when mounted (16:9)Up to 24″Up to 24″
Head Movement50 x 36 cm50 x 36 cm31,5 x 22,5 cm25 x 11 cm
Measures pupil sizeYesYesYesYes
Connection TypeUSB 2.0USB 2.0, LANMini USBUSB
Data Processing  PCExternal UnitInternalPC
Weight0.2 kg0.2 kg + unit0.21 kg0.14 kg
Dimensions  18.4 x 2.8 x 2.3 cm18.4 x 2.8 x 2.3 cm25,4 x 2,6 x 3.2 cm32 x 4.5 x 4 cm


Tobii T60XLTobii X3-120Gazepoint GP3 HDEyeTech VT3 XL
Sample Rate60 Hz120 Hz150 Hz60 Hz
Accuracy0.5°0.4°0.5 – 1°0.5°
Recovery Time300 ms≤100 msN/AN/A
Mount TypeBuilt-in screenOn screen, standOn screenStand
Screen Size24″ (1920 x 1200 pixels)Up to 25″ when mounted (16:9)Up to 24″Up to 75″
Distance50-80cm50-90cmN/A180 cm and beyond
Head Movement 41 x 21 cm50 x 40 cm35 x 22 cm22.5 x 17 x 30cm
Measures pupil sizeYesYesYesYes
Connection TypeLAN + VGA/DVIUSB 3.0, LAN (External Unit)USBUSB
Data ProcessingInternalPC, External Unit (Accessory)PCN/A
Weight13 kg0.12 kg + Unit0.15 kg1.8 kg
Dimensions57.3 x 57.9 x 28.1 cm32.4 x 2.0 x 1.7 cm32 x 4,5 x 4,7 cm96 x 5 x 8


Tobii TX300Tobii SpectrumSmart Eye AuroraSmart Eye Pro
Sample Rate300 Hz (±1 Hz)60 Hz – 600 Hz60 Hz60 or 120 Hz
Accuracy0.4°0.4°Head rotation 0.3 degrees, Gaze 0.3 degreesHead rotation 0.5 degrees, Gaze 0.5 degrees
Recovery Time10-165 ms≤100 ms1 / frame rate1 / frame rate
Mount TypeBuilt-in screenStand / supplied monitorOn screenOn screen, camera
Screen Size23″ (1920 x 1080 pixels)23.8″90° – 360° of view, depending on number of cameras
Operating Distance50-80cm55-75cm50 – 80 cm30 – 300 cm – adjustable with lenses and positioning of cameras
Head Movement 37 x 17 cm29 x 23 cm50 x 40 cm40 x 40 x 50 cm
Pupil sizeYesYesYesYes
Data ProcessingInternalInternalPCPC
Weight6 kg5 kg0.16 kg0.3 kg (per tracker)
Dimensions56 x 54 x 24 cm55 x 18 x 6 cm12.6 x 2.4 x 2.7 cm120 x 40 x 40 mm


Pupil Labs GlassesTobii Glasses 2
Eye Tracking TechniqueDark pupil with 3d modelCorneal reflection, dark pupil
Sampling Rate200 Hz50 Hz or 100 Hz
Calibration Procedure9-point and 5-point1 point
Slippage CompensationYes, 3D eye tracking modelYes, 3D eye tracking model
Pupil SizeRelative 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.

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