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>We'd need a large study with many different fitness bands Well, I don't, it's not like it was the only issue with that - all other functions, not dependent on
by pandaman 2y ago
>We'd need a large study with many different fitness bands
Well, I don't, it's not like it was the only issue with that - all other functions, not dependent on wearing, would glitch too. Alarms would not go off, workouts would not record, or would not export to Strava (and its own fitness app only shown data in km), it would not go into DND with the phone, or would not get out of it. And it could not filter notifications, which, apparently, Android makes very often: playing radio in the car would be accompanied with constant buzzing informing me what song is playing if I did not put it on DND. I junked the thing and replaced with Garmin, which, apparently, is pretty consistent and can detect even HRV. Even if I had faulty hardware somehow (broken alarm in an electronic watch, which works 95% of the time sounds a bit of a stretch) the accompanying app is obviously buggy and hostile to the users.
The sleep monitoring on Garmin is very different from the Mi Band, btw: Mi Band would not detect short wakeups, sleep start was so off that it would start before I went to bed, as I already mentioned, its heartrate during sleep was off Garmin's by ~20%, though not something I'd care about much, and its SpO2 is pretty random at any time so I'd imagine it would not detect sleep apnea if I had one. Also, step count on the Mi Band depends on the hand movement so I'd get 1000 steps in a half an hour on a balance board, Garmin counts much closer to the phone as both track linear movement too so they don't count steps when you're moving your arms while being stationary.
It's sure cheap and the form factor is great but it is not a reliable source of any data. I would not even trust its time readings, as far as I can tell it has not glitched on me but I did not have it long enough. There is a reason Garmin manages to sell $1000+ fitness watches despite competition from both cheap bands and Apple's.