SUWU Fingertip Pulse Oximeter,Blood Oxygen Saturation Monitor (SpO2) with Pulse Rate Measurements and Pulse Bar Graph,Portable Digital Reading LED 4 Colors Display

But a pulse ox like this one: pulse oximeterThis will help you check the accuracy the Apple Watch and check your heart rate at the same time. If it’s the watch, time to get it checkedIf it’s your heart rate all over the place, time to get you checked out I had an episode with my heart rate and rhythm going nuts at 24. It’s not common but can happen. Just keep an eye on it and don’t ignore when you feel unwell.