Comparison of head-free gaze trackers

This page summerizes head-free gaze tracking hardwares.

SteelSeries Sentry Gaming Eye Tracker

https://steelseries.com/gaming-controllers/sentry-gaming-eye-tracker

• Price：~$250
• Acquisition rate：30 or 60 Hz
• Angular resolution：0.5 - 1 deg (RMS)
• Latency: < 20ms (at 60Hz)
• FOV: 40cm x 30cm（at 30Hz, depth 65cm）
• Depth range: 45cm – 75cm
• Size: 20 x 1.9 x 1.9 cm
• Weight: 70g

EyeTribe

https://theeyetribe.com/

• Price：~$100
• Acquisition rate：30 or 60 Hz
• Angular resolution：0.5 - 1 deg (RMS)
• Latency: < 20ms (at 60Hz)
• FOV: 40cm x 30cm（at 30Hz, depth 65cm）
• Depth range: 45cm – 75cm
• Size: 20 x 1.9 x 1.9 cm
• Weight: 70g

Gazepoint GP3 Desktop Eye Tracker

http://gazept.com/

• Price: ~$500
• Rate: 60Hz
• Angular resolution：0.5-1 deg (RMS)
• Latency: 50 – 70ms
• FOV：25cm x 11cm (at 65cm)
• Depth range: ±15 cm
• Size: 20 x 1.9 x 1.9 cm (W x H x D)
• Weight: 70g

S2 Eye Tracker

http://mirametrix.com/products/eye-tracker/

• Price: ~$500k
• Rate: 60 Hz
• Angular resolution: 0.5 deg (RMS)
• Latency: ? (0.3 deg)
• FOV: 25 x 11 cm
• Depth range：30 cm
• Size: 35 x 4 x 3 cm (W x H x D)
• Weight: 300 kg

Tobii X2-30 Eye Tracker Compact Edition

http://www.tobii.com/de/eye-tracking-research/global/products/hardware/tobii-x2-30-eye-tracker/

• Price: ~$1M
• Rate: 30 Hz
• Angular resolution: 0.4 - 0.5 deg (RMS)
• Latency: 50 - 70ms
• FOV: 50 x 36 (at 70 cm)
• Depth range: 40 - 90 cm
• Size: 18.4 x 2.8 x 2.3 cm
• Weight: 200g

Tobii X2-60 Eye Tracker Compact Edition

http://www.tobii.com/zh-CN/eye-tracking-research/global/products/hardware/tobii-x2-60-eye-tracker/

• Price: ~$1M
• Rate: 60 Hz
• Angular resolution: 0.4 - 0.5 deg (RMS)
• Latency: 35 ms
• FOV: 50 x 36 (at 70 cm)
• Depth range: 40 - 90 cm
• Size: 18.4 x 2.8 x 2.3 cm
• Weight: 200g