The accuracy of metrics measured by the Apple Watch varies depending on the specific measurement being evaluated, such as heart rate, VO2Max, and calorie expenditure.
Heart Rate Measurement
The Apple Watch has demonstrated clinically acceptable accuracy for heart rate (HR) measurements, particularly during peak exercise intensity. Studies have shown that the watch’s HR measurements correlate well with gold standard ECG readings, with a mean absolute percentage error (MAPE) ranging from 6.33% to 10.69% across different activity levels. Specifically, the Apple Watch was found to have a trivial mean bias during walking and jogging, indicating that it does not significantly overestimate or underestimate HR values. In another study involving patients with abnormal heart rhythms, the Apple Watch achieved 100% accuracy within 10 beats per minute compared to ECG readings.
VO2Max Estimation
For VO2Max estimates, the Apple Watch shows a high degree of accuracy, with an error margin of about 4% from true values. A study conducted by Apple validated its cardio fitness algorithm against actual VO2Max estimates and found a reliability coefficient (ICC) between 0.86 and 0.89, indicating strong reliability in its measurements.
I've switched to using K-Plus QR code (via the app of course) with Lazada. Very easy and apparently refunds are instant if required.. (Haven't had cause to test that out yet)
It is clearly reported in the OP that some were unaware, but that could be to save themselves, clearly was the OPINION from the poster to which you added your as usual pedant reply.
That poster clearly posted exactly what I quoted. It was not reported that "some were unaware, but that could be to save themselves", as you also claim!
More words... she can't do a thing to stop Thailand doing what it does best... trafficing people, robbing people and killing people through lack of safety measures.
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