Vyvo Devices automatically and continuously performs Stress Level measurements analyzing your Heart Rate Variability (HRV). At the same time, you are inactive, but you can manually measure your Stress Level on your device by following these tutorials:
> How can I manually measure the Stress Level on my LifeWatch Generation 2?
> How can I manually measure the Stress Level with BioSense?
> How can I manually measure the Stress Level on my Vyvo Watch Lite SE?