KardiaMobile 6L Max EKG Monitor, Includes One-Year KardiaCare Membership, FDA-C

This is such a fun toy for a medical dork like me. But it is very useful for anyone with a-fib, palpitations, or any of the listed rate/rhythm disorders they want to evaluate. It is small enough to carry in your purse or pocket. I have actually used it to diagnose rhythm issues in clinic when I didn't have an ekg machine handy. The only downside is that the new models require the subscription to work.