INTRODUCTION
The Empaca E4 wristband is a wearable
wireless device designed for comfortable,
connuous, real-me data acquision in daily
life.
The E4 contains four sensors:
• Photoplethysmography (PPG) to provide
blood volume pulse, from which heart
rate, heart rate variability, and other
cardiovascular features may be derived.
• Electrodermal acvity (EDA), used to
measure sympathec nervous system
arousal and to derive features related to
stress, engagement, and excitement.
• 3-axis accelerometer, to capture moon-
based acvity.
• Infrared thermopile, reading skin
temperature.
The E4 operates either in streaming mode
for real-me data viewing on a mobile device
using Bluetooth® low energy or in recording
mode using its internal memory.
Empaca provides soware tools that enable
your E4 data to be transferred securely and
easily to other devices:
• Empaca Connect is a web applicaon
for storing, viewing, and managing E4
data. The applicaon can be accessed
from any plaorm using a contemporary
web browser. To get started, set up a free
account at:
hps://www.empaca.com/connect
• Empaca Realme is a mobile App
that provides wireless streaming and
visualizaon of real-me E4 data on
Bluetooth (r) Smart Ready mobile devices
including iPhone, iPod touch, iPad, and
many Android phones and tablets. Free
from the App store or Google Play.
• Empaca Manager is a desktop applicaon
for managing the E4. Empaca Manager
runs on OSX 10.8 (Mountain Lion) and
above, Windows desktop and Windows
8 tablet. It transfers data from the E4
and uploads it securely to the Empaca
Connect. Download for free at
https://www.empatica.com/product-e4-download