Other Open Access
The H-Watch is a fully open-sourde wearable long-lasting smart monitoring platform for health monitoring and tracking. Thanks to the integrated state-of-the-art NB-IoT cellular technology, it provides direct and secure cloud connectivity. It is based on widely available off-the-shelf components; however, it is designed with low-power and on-board intelligence in mind. Experimentalresults demonstrated only 5.9 mW of average power consumption, leading to a lifetime of 9 days on a small watch battery wothout, and up to 20 days with the solarenergy harvester.