5 hidden Apple Watch health features you probably didn’t know about
Discover 5 hidden Apple Watch health features that can quietly track your well-being — from detecting sleep apnoea and heart irregularities to spotting ovulation and high blood pressure patterns.
1/5

It can warn you about high blood pressure patterns
Even though the Apple Watch can’t directly measure blood pressure, it can pick up signs that something might be off. Using heart-rate data and other signals, it can suggest that your blood pressure may be higher than normal — a gentle nudge to check with a doctor or use a real monitor.
2/5

It can detect signs of sleep apnoea
If you snore or feel tired even after a full night’s sleep, the Watch might spot why. It studies your breathing and wrist movements during sleep and can warn you about possible sleep apnoea — a condition where your breathing pauses while you sleep, often without you realising it.
3/5

It gives you a morning health snapshot
Every morning, you can see a quick summary of how your body behaved overnight — things like heart rate, breathing rate, temperature, and how long you slept. It’s a simple way to notice trends or catch early signs of stress or fatigue.
4/5

It tracks your menstrual cycle and ovulation
If you use the Cycle Tracking feature, the Watch can estimate your ovulation period by checking subtle changes in your body temperature while you sleep. It’s useful for those tracking fertility or just wanting to understand their cycle better.
5/5

It can take an ECG and spot irregular heartbeats
One of the Watch’s most impressive health tools is its ECG feature. It can detect unusual heart rhythms — like if your heartbeat is too fast, too slow, or irregular — and let you know when it’s time to see a doctor.
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