I use all the functions of this bracelet, follow the notifications in the social. networks, mail. For two weeks that I use this bracelet like global glitches did not happen. Pros below: touch screen which is convenient to use. And I also want to note such a function as a built-in heart rate monitor, I run in the morning, and it is very important for me to monitor my heart rate during training. Cons below: It took some time to connect to the phone, but the problem was solved.