Empatica E4 EDA/GSR Wristband

Name: "Empatica E4 EDA\/GSR Wristband"
Brand: "Empatica"
SKU: "HW-44097"
Price: 1690 USD
Availability: Discontinued

Discontinued

The E4 wristband is designed for researchers and physicians who are conducting research on physiology in daily life and is not for consumer use. It is flexible with tools for data recording and management as well as real-time streaming to the Empatica Realtime App both for Android and for iOS. It is also possible to measure PPG with the E4 in order to conduct Heart Rate Variability (HRV) studies.

The Empatica E4 has been discontinued and is no longer available for purchase. The integration for the E4 wristband in iMotions Lab has also been deprecated and users of the product are advised to find alternatives.

Specifications

Sampling frequency	EDA: 4 Hz (non-customizable); PPG: 64 Hz (non-customizable)
Resolution	EDA: 1 digit ~900 pSiemens; PPG output: 0.9 nW / digit
Range	0.01 μSiemens – 100 μSiemens
Electrodes	Semi-permanent (screw in design); SUS03 stainless steel (standard) or Silver (Ag) plated with a metallic core
Electrode longevity	Lifetime (SUS03), 4–6 months (Ag)
Flash memory	Up to 60h of data storage
Data transfer	Bluetooth / USB 2.0
LEDs	Green (2 LEDs), Red (2 LEDs)
Sensor output	Blood volume pulse (BVP)
Motion artifact removal algorithm	Combines different light wavelengths; Tolerates external lighting conditions
Dimensions	Case: 44x40x16 mm; Wrist: 110 – 190 mm
Weight	25 g
Medically Certified	No