Review on 🏋️ Smart Fitness Heart Rate Monitor - Digital Sports Wrist Watch Activity HR Tracker with Chest Strap, 3D Sensor, EL Backlight, Alarm, for Exercise or Running - Men and Women - Pyle by Peris Holland

The clock then ran - normally - on the first day after it was switched on. the battery was dead. It should also be noted that changing the batteries is not so easy, it requires a special screwdriver, and not one, but two batteries are required. Very disappointed. It should also be noted that the screen was difficult to read and not as simple or implied as it might seem when working. Very disappointing.