I've had one -- a 9"x4"x12" plastic box -- since around 1995, used through vehicle ownership covering four vehicles. It still works. I assume all these devices plug into the 12V cigarette lighter on a vehicles dashboard.
It only gets used on average maybe once every four years. For the last 18 years, it's been exclusively used for my 95 Trooper, which has SUV-class tires.
I bought it at a Kragen's -- a has-been auto-parts chain-store like O'Reilly's or Autozone (which probably succeeded Kragen's).
I only use it in emergencies or situations when the tire pressure is too low for driving the car. Ordinarily, I take my Trooper to a tire reseller who keeps the tires filled to spec with nitrogen gas. I'd prefer not to top up the nitrogen with plain air. This is an aspect of free service I get from the reseller, even for a set of tires more than 6 years old.
So I'm thinking to buy another one. I'll do a little research on Amazon, check their customer reviews, and report back if I find anything worth consideration.
Also -- PS -- I'd previously looked into a nitrogen tire-charging system. Way too expensive, and you have to keep bottled compressed nitrogen handy.