Overall good for its price, it does what it promises, but it didn't turn out to be particularly durable, resulting in it breaking almost immediately with the first hit it took during sleep. However, even a more expensive one that I bought broke quite quickly without hitting anywhere, so maybe it's purely a matter of luck.

For one week it is good... after that the screen starts glitching and the battery proved to be problematic and stopped charging...

For the 10 euros I spent, it is the best you can find. It counts steps, distance, pressure, heart rate, and receives notifications from applications and calls. Battery life is 6-7 days. What else can you ask for from a smartband at this price? You have to pay double+ for something better.

On the 2nd day, the hook of the strap broke. The measurements are very few, for 5-10 euros more you can get something better.

I found it on sale for 8.90 and decided to give it a try. The screen shows only the very basic things, meaning that notifications are just a vibration to remind you to check your phone! The applications that you can "notify" are few, mainly just calls and messages, not social media, etc.
For 9 euros, if you want to exercise and not have your phone with you, it's okay! Easy application that you download through various means, the Tracer works in your hand with clicks and long clicks for selection!