06-09-2026 08:00 via geeky-gadgets.com

Fitbit Air vs Garmin CIRQA: Tracking Accuracy Compared

The Quantified Scientist dives into a detailed comparison of two new screenless fitness wearables, the Fitbit Air and the Garmin Circa, focusing on their accuracy in exercise heart rate tracking, sleep monitoring and nightly health metrics. For instance, the Fitbit Air demonstrates superior performance in sleep tracking, reliably identifying sleep stages like REM and deep […]
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