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<p>and Company, Vital Fitness Tracker**, <a href="page.php?w=Apple_Watch">Apple Watch</a> (Series 7**, Series 9*, Apple Watch SE*, Apple Watch Ultra 2*), <a href="page.php?w=Mobvoi">Mobvoi</a> (<a href="page.php?w=Mobvoi">TicWatch Pro 5*</a>) and <a href="page.php?w=Fitbit">Fitbit</a> (Versa 3** and Versa 4*) are vendors selling consumer heart rate products. Most companies use their own proprietary heart rate algorithms.</p>

<p><big>Accuracy</big></p>
<p>The newer, wrist based heart rate monitors have achieved almost identical levels of accuracy as their</p><p>
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