How to set up Apple Watch for POTS: track your standing heart rate and make sense of daily patterns
See how your pulse responds when you stand up, using Apple Watch, learn which values are worth bringing to your doctor, and see how Sam makes your daily heart rate, sleep, and activity data easier to understand.
On this page
With POTS, how your heart rate responds when you stand is the key indicator - your Apple Watch can help you see it. Sam fills in the bigger picture: resting heart rate, sleep, and activity - for free.
Two separate things: standing test and daily trends
As the article on POTS diagnostic criteria explains, a standing test is a conscious, active observation that you perform yourself, while Sam works passively in the background. This guide covers both.
Observing your pulse when standing
- Lie down quietly for a few minutes and read your resting heart rate on the watch.
- Stand up and keep the Heart Rate app, or a watch face showing your live pulse, in view.
- Watch for 10 minutes, noting how your pulse changes - jot down any notable values or moments.
This is a rough, at-home version, not a replacement for a medically supervised Schellong test or NASA Lean Test, where blood pressure is also measured and other causes are ruled out.
Where Sam Health fits in
- Wear your watch regularly. Resting heart rate is calculated automatically in the background.
- Enable sleep tracking so Sam can include sleep data in its analysis.
- Connect Sam to Apple Health and grant access to resting heart rate, sleep, and activity data.
The monthly report for your clinical team
Sam summarises your resting heart rate, sleep, and activity trends once a month in a PDF report. This is especially useful if your clinical team has designed a structured movement programme with you and you want to track together how your activity and recovery shift over weeks.
How Sam helps
Sam reads your resting heart rate, sleep, and activity from Apple Health, compares them to your personal baseline, and brings them together in a monthly report. The article Living with POTS covers which movement, salt, and compression strategies count as baseline POTS therapy - and how that changes if you also have PEM.
Medical device statement
Sam is a wellness companion, not a medical device. Sam does not diagnose, treat, or prevent any illness and does not replace medical advice. For health questions, always consult a qualified medical professional.
Sources
- Apple Support: Heart rate on Apple Watch
- Clinical Practice Guideline for Orthostatic Intolerance / POTS / Orthostatic Hypotension (mecfs.de)
Frequently Asked Questions
How do I observe my heart rate response when I stand up, using Apple Watch?+
Open the Heart Rate app or a watch face with a live heart rate complication, lie down for a few minutes and note your resting reading, then stand up and observe how the number changes over the next 10 minutes. This is a real-time observation in the moment - not an automated test or report.
Does the Watch automatically record a standing test for me?+
Not as a finished report. You can note your observations, or you can look back at the heart rate curve in the Health app afterward to trace how your pulse changed over that time window.
Can my Apple Watch recognise or diagnose POTS?+
No. The Apple Watch shows you your heart rate in real time, which you can use for a standing test - but it does not diagnose POTS. Interpreting those values medically is still up to your doctor, using a Schellong test or tilt table test.
Does the Apple Watch show me heart rate variability (HRV), and what does it mean for POTS?+
Yes, Apple Watch measures HRV automatically in the background, and Sam displays it as a trend signal against your personal baseline. What a specific HRV change means in POTS is not yet fully understood scientifically and is highly individual - Sam does not interpret it medically. Unusual patterns are worth discussing with your clinical team.
How is Sam different from watching your pulse manually when you stand up?+
Sam does not perform standing tests. Instead, it passively analyses resting heart rate, sleep, and activity data collected over weeks - quite separate from any conscious, active heart rate observation when you stand.
Do I need an Apple Watch for this?+
For real-time pulse observation during a standing test, a watch with a live heart rate display is helpful. For Sam itself, any wearable that syncs with Apple Health works - Oura, Whoop, or Garmin - combined with an iPhone.