In order to train like a pro, you are going to need an accurate heart rate sensor. You can always use a smartwatch but for more accurate readings, you can get an armband heart rate monitor like the COOSPO HW9. It has a lightweight HRM with HRV function. It has a 5-color LED indicator light, so you will be able to see your heart rate zones at a glance. It vibrates to let you know when your heart rate is higher than your custom heart rate value.
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These heart rate monitors are compatible with Wahoo, Strava and Zwift. You can have two simultaneous Bluetooth connections. This particular one is IP67 waterproof rated. The battery life lasts up to 35 hours. This gadget has a footprint of 1.6 x 1.3″. The COOSPO HW9 is accurate within 1BPM.
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