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Many people wonder why they should pick a Chest Strap HR Monitor when smartwatches also show heart rate. The simple answer is: chest straps give better accuracy, especially when you're doing intense activities. When you wear a smartwatch on your wrist, it uses lights to check your blood flow and calculate your heart rate. But this method can become less accurate when you move too fast or sweat too much. For example, during running, HIIT workouts, or cycling, your wrist moves a lot. This motion can affect the light sensors and show wrong readings..https://fitnesstrackerforswimmers.com/product/chest-strap-hr-monitor/
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