Callisia, founded in 2020, is an IoT health technology company developing a wearable device that functions as an open hardware platform with interchangeable biosensors. Connected to a secure, AI-powered data processing platform, Callisia enables non-invasive monitoring of various pathologies using the latest generation of biosensors. Designed with a strong focus on privacy and flexibility, the system allows continuous health monitoring while giving users and organizations a scalable, future-proof solution for medical and wellness applications.