Apple Watch Series 12: what’s actually new (and who should upgrade)
Apple Watch Series 12 opened for pre-order on September 9, with units in stores September 18. The story here is
Apple Watch ECG: what it detects, what the results mean, and when to take one
Most people with an Apple Watch don’t know what the ECG app actually measures, when to use it, or how
Apple Watch blood oxygen (SpO2) explained: what the number means and what to do with it
I woke up one morning and saw a notification from the night before: my blood oxygen had dipped to 97%.
VO2 max on Apple Watch: what the number means and how to use it
VO2 max, labeled Cardio Fitness on Apple Watch, is one of the strongest predictors of long-term health your Watch tracks.
Heart rate recovery on Apple Watch: what the number means
I finished a tempo run, stopped my workout, and watched the number appear: Recovery Rate, 31. I had no idea
Resting heart rate on Apple Watch: what it means and how to use it
I noticed my resting heart rate had crept up eight beats over three weeks. There were no obvious symptoms and
Apple Watch sleep tracking: how it works and what to do with the data
The sleep score said 90. Excellent. My deep sleep was 7%. Those two things can both be true at the
What Apple Watch training load means and how to read it
Every time I finished a hard week of runs, I’d open my Activity app and see all 3 rings closed.
How to build a daily recovery score with your Apple Watch data
Apple collects your health data 24/7. The problem is it’s scattered across multiple apps with no single answer. Here’s the