With iCare you get instant notification when you're grandma had a fall on the ground and maybe needs instant help. Every third person over-65-year-old collapsed at least 1x times per year on average every 10th crash draws hospitalization for themselves. (Klos09, S.1) (Data for Germany)
So every second can be important and this is a perfect use case for wearables!
The son only needs to have an Apple Watch and his watch will subscribe the sensor-data of the sensor his grandmother is wearing.
Fall detection for grandmas and grandpas with the wunderbar accelerometer and gyroscope.
A belt the person you care put around his upper body. It detects the crash on the ground and impact to the ground and send a message to the Apple Watch. It is a native Apple Watch App!