A set of rosary beads today includes 50 smaller beads divided into groups of 10 by a larger bead, along with a pendant consisting of a cross and five additional smaller beads, explains the website.

The rosary itself is a simple circle of beads divided into five sets of 10 called a decade. For each decade, there’s a reflection on a “mystery,” which is an event in the life of Jesus or Mary.

The eRosary is an app-driven device that can be worn as a bracelet. To activate it, all you have to do is make the sign of the cross, similar to how Catholics begin praying the Rosary.

Wearable Tech Vatican unveils 'smart rosary' activated by making the sign of the cross By James Rogers Fox News Published October 17, 2019 1:14pm EDT Video ...

This tradition, which dates back more than 150 years, involves pilgrims praying the rosary as they climb the church's steps.

Technology Vatican Vatican launches £85 'click to pray' rosary bracelet featuring 'smart cross' The bracelet, called the eRosary, features 10 black agate and hematite rosary beads, alongside a ...