Review on ANCwear Waterproof Fitness Tracker Watch with Heart Rate Monitor - 🏊 Smart Activity Band with Sleep Monitor, Step Counter Pedometer for Health Exercise by Darren Cole

My first impression was very positive. It looks very nice. It looks the same as the more expensive brands. After using it for over a month and testing the accuracy of some parameters, I found that some parameters are pretty close while others are MUCH different. Steps, heart rate and O2 are pretty close together. . Blood pressure is so inaccurate that it cannot be used. It is always at least 30 points below my actual blood pressure. The sleep monitor is pretty accurate unless you're sitting still in the evening, watching TV, etc. It will think you're sleeping when you're not moving. Another small issue I have is when I move my hand to check the time, it doesn't always light up. If it works, it's great. Sometimes it catches fire with the slightest movement, and sometimes I can shake my hand like a wild man and it doesn't catch fire. It's frustrating when I have something in my hands and can't touch it to light it. My biggest complaint is the battery life. I get about a day and a half of battery life on a single charge. There is little warning that he is going to die. It will show as fully charged until the last hour or so, then it will show 50% for an hour and then die. If you don't watch within that hour, there will be no warning. Overall I'd be happy with it, even with a few issues due to the low price, but battery life is the one thing I just can't overlook. If you don't mind charging every day, I think it's ok for the price.