- Incorrect pedometer. it was especially funny when he counted me 86 km, when I played the guitar all evening :)) I moved the bracelet to the other hand, poked around in the behavior marks (without much result) - it seemed to become more precise. but I would not recommend putting it on the "leading" hand;
- alarm. to hell with him, with "smart", with them, and the usual one did not wake me up at all, although I would not say that I sleep like an elephant. the solution was simple - for some reason, sometimes the watch decided that I needed to sleep more, and simply did not vibrate :) as a result, I turned off this function altogether;
- just a nightmare official application. towards the end of use it became more or less stable, but a couple of years ago it was a quiet flying horror that was not really finished. there is still very little opportunity to track statistics, it’s easier for me to go to Apple’s Health, everything is much clearer there;
- continuing the theme of software. one Mi account - one bracelet. I did not succeed in linking both mi band 2 and mi band 3 to one account;
- dancing with a tambourine when charging. started about a year after purchase. it was necessary to find a single position in which the capsule was charged, while turning the charge (native from the box, by the way) in different ways;
- flimsy straps! changed a few pieces, once lost a capsule because of this, until I bought a leather one with a metal rim. Before that, there was horror, for some reason they very quickly fell into disrepair, and the capsule simply fell out of them. by the way, with a metal rim, the vibration became more sensitive;
- covered at first barely, and then already very noticeable scratches. does not affect performance, but it will piss off neat people :)