Sure, he’s got JARVIS to watch over him electronically, but when he’s out and about, he needs something a little more subtle.
That’s where the AliveCor Heart Monitor comes in handy.
The AliveCor Heart Monitor is a case within which you can set your iPhone. The FDA-approved app then measures your heart beat (exactly like a monitor in a hospital would) through the electric conduction via your fingertips, showing you a real-time graph of your heartbeats per minute.
It’s also a convenient (and more subtle) way to do a personal systems check, without having to step into a 240 pound iron exoskeleton…