I spent just over 20 euro so I had no great pretensions on this product, however, it is fantastic shown does exactly what it states. The battery after a couple of refills has stabilized and lasts up to five days, consider that I use every day in the gym. There I quietly showered and slept there. cute monitoring of sleep, amazingly accurate in measuring blood pressure, do not think it was possible. I think of getting more for my parents.#Alfawise I7E ECG Monitor AI Intelligent Analysis Smart Bracelet# View More View Less
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