LIFEPLUS Lifeleaf User Manual

A. User Requirements Specification

The Lifeleaf is Lifeplus' smartwatch and is wearable device on the wrist.

The band is magnetic and wore tight on the wrist.

User to tighten the wrist band in order to make sure the sensor at the bottom of the
watch does not move relative to the wrist. This assures that there is less to almost no
motion between sensor relative to the skin at the wrist and also that there is less
external ambient light affecting the signal quality.

The watch communicates with an external received via a secured Bluetooth wireless
connection

The external receiver (smartphone) has the Lifeplus App

User can send the following requests from the App to the smartwatch
o Measure now: all physiological parameters are measured and sent to the to the
App installed in an external receiver (smartphone)
o Calibrate now: PPG signal is collected and sent to the App installed in an
external receiver (smartphone)

Watch collects the following user physiological parameters automatically at a
predetermined frequency or just per user request:
o Heart rate
Lifeleaf Smartwatch User Guide
Figure 1 Lifeleaf main watch face
Figure 1 Magnetic Band