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Choosing the best fitness tracker depends on your needs. We compare key specs from manufacturer listings, highlighting options for adaptive coaching, no-app use, and comprehensive health tracking.
We explain the PPG sensor technology behind heart rate tracking and how algorithms estimate calories, helping you understand your device's data.
This category covers educational guides on fitness tracking devices. We explain how these gadgets work, from basic step counting to advanced health metrics.
Our articles help you understand the technology behind the features. Use these guides to make informed decisions when selecting a device for your personal fitness goals.