L8star Fitness Tracker, Continuous Heart Rate Monitor IP67 Waterproof Smart Activity Tracker with 6 Sports Mode,Sleep Monitor,Pedometer Smart Wrist Band for Women Men
$25.99Price: (as of – Details) To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness. Smart watch heart rate and sleep…