Apple shares the data behind Apple Watch Series 12’s biggest health claim

Published Sep 11, 2026 • 1:37 PM

Apple makes a bold claim when it comes to Apple Watch Series 12 and Apple Watch Ultra 4. According to Apple, the new Health Sensing System on both watches “delivers the most accurate heart rate sensing in a wearable.” Apple backs up this claim with a new study that shows how Series 12 heart rate sensing compares to other leading wearables, including smart rings and fitness bands.

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Friday, Sep 11
- Apple shares the data behind Apple Watch Series 12’s biggest health claimYou are here
Thursday, Sep 10
- Futures Slide As Yields, Oil Spike Ahead Of PPIZeroHedge
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Wednesday, Sep 9
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Friday, Sep 4
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