The Stress in Action Wearables Database (SiA-WD) systematically compiles technical specifications, available signals, data access, and—crucially—evidence on reliability, validity, and usability for over 50 consumer and research-grade wearables. The SiA-WD aims to support informed and efficient device selection for diverse research needs.

From September 2025, the SiA-WD is accessible via the open-access Shiny app.  This app enables researchers to easily search via filterable criteria, and compare wearables in the database in a user friendly manner. The intention is to update the database every six months at least until 2032.

How does it work?

The wearables in the SiA-WD can be filtered in two ways. The simple product filter can be used to quickly compare up to three different devices. If a researcher is already trying to make a final decision between two specific wearables, for instance, this filter can be used to facilitate a side-by-side comparison between them. For the more bottom up approach, there is an extensive feature filter. With this filter, devices can be filtered based on a multitude of aspects such as costs, battery life, available signals, access to raw data, the number of existing validity studies, and the SiA expert scores.