Forget about using a phone as the key, I'm gonna get me one of these and keep the key card in the attached wallet.
No need to fumble with my wallet to get the card out or put it away. I can just tug on the chain to retrieve the attached wallet and touch it to the B-pillar to unlock the car and toss it into the cupholder to start the car. No worries about dropping the card down a crevice, leaving it behind or otherwise misplacing it in a senior moment. The chain, clipped to a belt loop of my skinny jeans, will be a fashion statement that lets people think I'm a wannabe retro hipster (too hip to carry a smartphone, but
au courant when it comes to the car I drive).