Prof. Dr. Shuang Li received a Ph.D. in biomedical engineering from Zhejiang University, China, in 2019. Prof. Dr. Shuang Li was funded by the Hong Kong Scholars Program to visit the City University of Hong Kong from 2021 to 2023. Now, Prof. Dr. Shuang Li is an Associate Professor at the Academy of Medical Engineering and Translational Medicine at Tianjin University and a senior engineer in the field of medical devices. Prof. Dr. Shuang Li is the guest editor of the Special Issue on Smartphone-Based Sensors for Biomedical Applications of Biosensors. Prof. Dr. Shuang Li mainly focuses on research in intelligent medical sensing, visual intelligence detection, iPOCT, and more.