Series 9 vs. 8 Health Features: Apple Watch Comparison – 9to5Mac

A major selling point of the Apple Watch is the health features that come with the wearable device. If you’re curious about the changes between the latest version and its predecessors, read on to learn about Apple Watch Series 9 vs 8 and earlier when it comes to health and fitness capabilities.

If you’re curious about how the new S9 SiP, latest display, Double Tap feature, and other aspects of the Series 9 compare to the Series 8 and earlier or Ultra 2 vs 1, check out our full comparisons:

Apple Watch Series 9 vs 8 and previous health features

There’s really only one major change this year when it comes to health features that the Series 9 has and that its predecessors don’t have Siri on the device with access to Health.

Apple Watch Series 9 vs. 8 Health Features

Later this year, after an update, Apple says Series 9 owners will be able to ask Siri for updates on their personal health data in addition to securely recording new health data by voice, such as weight, if needed. took a medication and more.

If you already have a Series 8, that’s the only health feature you’ll miss out on, but if you have a Series 7 or earlier, you’ll get more health capabilities with the Series 9.

Here’s a detailed look at the Series 9’s health features and more:

Apple Watch model/health and fitness features Series 9 8 7 6 SE 2
Siri on the device with access to Health
ECG app
Blood Oxygen app
Third generation optical heart sensor
High/low heart rate notifications
Irregular rhythm notifications
Low Cardiovascular Condition Notifications
Water resistant up to 50 m
Sleep tracking with sleep stages.
Mental Wellness
Accident detection
Fall detection
Advanced Cycle tracking with temperature detection.
Cycle tracking without temperature detection
emergency SOS
International emergency calls

New health features for all Apple Watches compatible with watchOS 10

Another cool thing about watchOS 10 is that all wearable devices that can run it get some useful new health and fitness features:


  • Series 9 starts from $399/$429 and above (Apple, Amazon, more)
  • Series 8 and earlier are often discounted (Amazon, Best Buy, more) Apple has stopped selling the Series 8
  • Apple Watch SE second generation goes from $249 (Apple, Amazon, more)

Apple Watch Series 9 vs 8 Health Features Summary

Apple Watch Series 9 doesn’t bring any big changes, but there are a number of updates beyond Siri + Health on the device, such as a brighter screen, double-tap gesture control, 64GB of storage, and an improved S9 SiP that could tempt some.

What do you think? What value do you think of Siri + Health? Share your opinion in the comments!

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