Which example of mHealth can be facilitated by SMS, the simplest core mobile function?

The choice of connecting patients to providers stands out as the correct example of mHealth that can be facilitated by SMS, given the simplicity and accessibility of text messaging. SMS, as a mobile function, enables direct and efficient communication between patients and healthcare providers. It allows for the exchange of essential information, appointment reminders, advice, medication reminders, and health tips without requiring complex technologies.

In contrast, the other options typically rely on more advanced technologies or internet-enabled services. Appointment scheduling often involves online platforms or management systems that may not be compatible with basic SMS services. Telehealth video calls necessitate a reliable internet connection and devices capable of video streaming, which goes beyond the functions SMS can provide. Wearable device syncing usually requires dedicated applications and Bluetooth connectivity, neither of which are supported through SMS. Thus, connecting patients to providers via SMS exemplifies the effective and basic use of mobile health technology.