“…Device selection for wellness, healthcare, and research applications Regardless of the application, defining the target use case is critical for success. This definition is a fundamental tenet of many mHealth guidelines [18][19][20] , and it requires a process of user-centered design incorporating clinical, engineering, behavioral science, ethical, and disparities considerations (e.g., language, numeracy, literacy, and disabilities). All mHealth projects, even noncommercial ones, should have a clear business case detailing how continued use of the solution will be financially and logistically sustainable.…”