4 stars: So far so good. But not perfect. Sometimes I wake up in the morning. I find that my devices deactivated. And did not record my sleeping patterns. I don't know why it keeps deactivating itself. Also I would like to add one thing I do not like about the mi fit band 4. the temperature for my location does not work correctly at all. He could be 85° outside. And it will read like it's 28°. Peculiar.
4 stars: Was awesome. So was the Mi Band 4 I used with it. And the battery life was amazing, until the last app update, which automatically triggered a firmware upgrade on the band. Since then, the battery performance has significantly dropped. I'd advise anyone who uses Mi Band 4 and hasn't updated yet to avoid this last update. It's a disaster for Mi Band 4. Anyone who knows how I can revert the firmware upgrade should please advise me.
4 stars: The app is free and the quality is very good when taking that into account. There are no heart points like in GoogleFit. There is no water inntake tracking feature (how many liters you've drunk). There is no food-cal tracking feature or recipe plans. Or fitness plans. However, the basics are there and they're what I personally was looking for, plus the app is free.
4 stars: Great app, works well and does most things as intended. Only downfall I have is I get a lot of repeat notifications for the same text. My dad has the same watch, same phone, same carrier, and same texting app and he never gets duplicate notifications. ...