Hate to say it, but I've only got a sort of old fashion flip phone. No fancy extras, it calls and it receives and it's small and fits in my front pocket. Am I tethered? Maybe, sortof...Because....I live alone and I don't think my little dog could call 911 for me, if "I'VE FALLEN, AND I CAN'T GET UP"...If I should happen to have to go to the hosp, I don't think my land line would stretch to my room to call my kids, but a cell phone would.
Out back of my place and I happen to fall, no one would find me until they see the buzzards circling or I start to smell really ripe.
But as a old codger, it's almost a necessity to have any more.
WuzzFuzz