Does not in any way justify the cost of the 5,500 dollars that I invested in it! Because of the functions it performs, a standard Xiaomi bracelet that costs 1,500 won't be necessary. Although I have not yet replaced the battery, I feel as though, for such a price, there ought to be options for batteries that can be recharged. My only disappointment is the amount of money that was spent on regular features. The benefits include the following: There are no advantages; yet, it does manage to carry out the defined function. Con: Although I purchased it with the intention of using it to track my heart rate and mileage while playing football and jogging, I've found that it is completely useless in the absence of a smartphone. 1. There is no built-in GPS 2. There is some analytics, history, calculation of averages, and trajectory in the appendix, but I expected there to be more. 3. I slept with him in order to measure his heart rate during the night, but the monitor either doesn't work, it turns off after a while or it just stops counting, or it's not designed to record heart rates that are very low. 4. While running, it will occasionally fail to record the user's heart rate for reasons that are not clear, which results in errors being generated when the analytics are displayed. Errors in the calculation of the distance can also happen, but this is most likely a problem with the smartphone. 5. I wanted to track my heart rate while playing football (to hell with it, with mileage - I won't run across the field from smartphones), so I placed the device on the podium. However, even though I didn't move more than 25 meters away from the device, nothing was recorded. 6. Extremely pricey for such a limited range of functions that are only partially fulfilled.
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