Review on π± chalvh Smart Watch: 1.69" Touch Screen Fitness Tracker with Heart Rate Monitor and Sleep Monitor - IP67 Waterproof Smartwatch for Android and iPhone by Michael Santos
Dumbest smartwatch ever
This watch is a waste of money. For example: active or inactive, pulse is ALWAYS 69 or maybe 68! Bought to help with SaO2 check. Active or inactive again, with or without oxygen: heart rate 96-98%. Surprising as I am dependent on oxygen. Confirmed inaccuracy with a finger monitor that ranged from 86% to 96%. Didn't get to 98% before resting on oxygen for at least 5 minutes! waste of money! BTW, this was a used app so can't fault it.
- One year trial
- Good but not great
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