[OxO4]

FWIW, some "smarter" machines (e.g., [0, 1]) support taking three readings with a minute pause in-between and then spit out a single reading.

[0] https://www.garmin.com/en-US/p/716808/ [1] https://www.withings.com/us/en/bpm-connect

[hombre_fatal]

The $50 I got from the pharmacy does it too, if the reader doesn't want to spend $100+ on a device.