Uselessly Inaccurate Heart Rate Monitor

I bought this thing based on it's positive reviews but I've been sorely disappointed in it's performance. I can't speak to it's ability to count steps, measure distance, or calorie counts, but based on the one thing that was important to me, heart rate, it failed miserably. It's other functions were not a consideration. I wore it to the gym for several days and kept trying it out, it never matched what the heart rate monitor on the stair stepper or stationary bike would display. So I thought perhaps they were wrong, or that my heart rate changed radically between machines; but I was suspicious. It was usually off by a wide margin and sometimes it was too high and sometimes too low. But it was never correct. I thought that perhaps the gym machines were off so I tried it at home. I have a Kardia device. It's basically a single lead EKG device that's FDA approved. Check it out here on Amazon if you don't know what one is. So I tried comparing the watch to the Kardia device. As I suspected, it was off by enough to make it useless. Perhaps the other functions work, I never checked them out. However, I would think that calorie count, at the least, would be dependent on heart rate. But who knows what algorithms this little piece of junk may employ. It makes an okay watch, but who whats to recharge their watch once a week? *** Update on November 19. I received an email from the seller (and apparently owner) of the retailer of this watch offering to return my purchase price and give me a $5 gift card if I would delete or upgrade my review of this product. I've ignored the offer, my review is an honest review and I prefer to stand by it.

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