Review on Ultimate Fitness Tracker: Xiaomi Mi Smart 🏋️ Band 6 - 1.56'' Offers Unmatched Features and Performance by Andre Parsons

Extremely inaccurate. Sleep monitoring, heart rate monitor and blood oxygen saturation are useless. Sleep doesn't record anything. Several nights I woke up several times but the clock couldn't fix it. For three nights I even got out of bed and went to the bathroom or kitchen for a glass of water, but Mi Smart Band 6 didn't record a single wake-up and still considered it a continuous sleep! Also, it doesn't track exactly when you fall asleep. If you're reading or watching a movie in bed, the bracelet will record it as a light sleeper. I bought this primarily for a heart rate monitor for Crossfit workouts. This group fails miserably even with regular cardio, let alone intense workouts. When using a treadmill, rowing machine or bike, the Mi Smart Band 6 consistently recorded 80-100 bpm LESS than my actual heart rate. I was able to measure and compare my real heart rate with several heart rate monitors in the gym (they were recently professionally calibrated by the manufacturer). I really wanted to like the Mi Smart Band 6 but unfortunately this is a waste of time. money and had to be returned.