. 2025 Jun 13;13:e60569. doi: 10.2196/60569
©Nazim A. Belabbaci, Raphael Anaadumba, Mohammad Arif Ul Alam. Originally published in JMIR mHealth and uHealth (https://mhealth.jmir.org), 13.06.2025.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mHealth and uHealth, is properly cited. The complete bibliographic information, a link to the original publication on https://mhealth.jmir.org/, as well as this copyright and license information must be included.
Figure 2.
Hydration-monitoring systems categorized based on the type of sensors used. IR: infrared; NIR: near infrared.