PRO:
Cool part, nice design, not as a "Klopper" as other competitors, but rather a piece of jewelry. Works even without a mobile phone, must be synchronized with this only occasionally.
In practice, the notification function is (under Android, with the translated app of decuro, freely configurable eg for WhatsApp, SMS, etc.), also like the credible record of the stages of sleep, the smart alarm clock and the incredible battery life. And all this for only 14 EUR (over Tinydeal).
CONTRA:
If you think you have the MiBand found a fairly exact and moreover beautiful pedometer, mistaken. On the arm not only steps are recorded, but just movements, which may have occurred while running. This results in my throughout the day, a number of "steps", which is a multiple of the actually overflowed steps. Is not changed by wearing on his left arm when right-handed little.
Troubleshooting Option A:
Who understands the alleged steps as a relative activity index and the calculated therefrom allegedly distance covered and consumed (kilo) calories not seriously, yet is easily operated with the MiBand. (Or you prone to self-deception, taking the numbers seriously and rejoices in its great values.)
Even though I've tested any of the other fitness bracelets themselves, I believe that this is a fundamental problem of all the arm portable pedometer / Fitness Tracker and should not be solved by improved firmware.
Problem Solution Option B:
During the day I wear the band no longer the arm, but in your pocket. This means that the steps and kilometers agree amazingly accurate. At night is the MiBand wrist, so do the sleep recording and the smart alarm clock. In the morning in the bathroom one must however the band is not put to it then put it in your pocket, otherwise the time of the morning toilet is interpreted as a deep sleep. If you spend a quiet TV evening on the couch, you should have the tape again by the arm, otherwise this time could be seen already as sleep.
That's not exactly the point of it and not ideal, but has proven itself and provides at least represent a satisfactory solution for me.
The app only needs to make the first set up an Internet connection, then you can access the network are removed from the rooted Androids. Thus, the data remains locally in the cell phone and do not end up in China, as is usually the case.