Consider the apple watch series 2/
answer an incoming call? Why?
send/receive text messages? Why?
set and alarm? Why?
track your runs (jogging)? Why?
monitor your heat-rate? Why?
get directions to a destination? Why?
to use Siri? Why?
look at photos? Why?
connect to a Tesla or BMW that has an Apple app (assume that you owned one)? Why?
send Facebook messages? Why?