Mebus Senior Smartwatch with SOS Function. Key features include:

SOS Function: Allows a call to be made with a single button press in an emergency. 
Location Tracking: Relatives can track the approximate location via a free app. 
Communication: Features include call/make a phone call, phone book, and chat functions between the watch and app. 
Additional Features: Includes a camera, flashlight, and simple math problems for brain training. 
Connectivity: Requires a micro SIM card that supports the 2G network and an internet plan to use its full functions.