Steps counts very tolerably. I did not notice any special attribution of superfluous.
The pulse almost perfectly coincides with the readings of the Omron tonometer. +-2-3% spread.
Even surprised with oxygenation. I managed to check it on a professional device in one of the Hong Kong hospitals. 98% on both devices. At times, during the measurement, it dropped to 95%, but I moved my hand, but this cannot be done.
The sleep tracker is really good. Only one problem so far - he does not perceive sleep on the train, apparently due to the movement of the train. Then I'll try to write to the developers.
Sleep advice - excellent, matches what I've read on the subject. All points with explanations, recommendations based on scientific publications with links under the article.
The test run surprised me with detailed indicators, and even the program has the ability to generate a short video about a run with a musical backing. If you want to tell your friends / subscribers - this is a cool thing.
I used it in the shower, washed my hands with a bracelet, put it half a meter into the bath - it works! But it reacts to drops or a jet of water like pressing a button with a finger, without consequences.
Manages music, but if any audio player has already been opened. Haven't tried it on video.
Different main screens, you can choose at least a classic clock, at least display all the information: weather, time, date, steps, kilometers, calories per day, albeit without animation.
The strap was appreciated by the whole family. I have already bought three bracelets: for myself, my wife and her brother for his birthday.
In general, if you have a tension headache, like I do, then this device will help you organize the correct day and sleep routine in order to avoid overload.