A recent review from The Wall Street Journal puts four popular health trackers against each other to see which device delivers the most reliable data. The test looked at how well the new wearable from Apple measures sleep and heart rate compared to the Oura Ring 5, the Whoop MG sensor, and the Fitbit Air from Google. The final results show a clear winner in both daily activity monitoring and clinical sleep measurement.
Tests confirm the new smartwatch tracks health metrics most accurately
The journalist completed a clinical sleep study at the Stanford Health Care Sleep Medicine Center to find out which wearable matches real medical equipment. The Apple Watch Series 11 performed the best out of the entire group. It matched the actual sleep duration perfectly, recording exactly six hours and 52 minutes. Its sleep staging data also aligned closest to the clinical lab results. The Fitbit Air came in second place, while the Oura Ring 5 took the third spot.
When it came to heart rate tracking during movement, the Apple Watch kept its clear lead. The tests included a bumpy outdoor bike ride and a calm walk with a stroller. During these activities, only the Apple device stayed fully accurate. The Whoop MG sensor managed to match this accuracy, but only when the reviewer wore the sensor on her bicep. Both the Fitbit Air and the Oura Ring 5 struggled to provide correct readings during higher physical activity.
A major difference between these products comes down to monthly costs. While the Whoop and Oura devices require paid subscriptions to see your full data, the Apple wearable gives you all your health numbers without any extra fees.
Shoppers looking for a reliable health tool will find that paying a single upfront price for accurate data makes the most sense. It sets a high standard for what buyers should expect from fitness devices going forward.
