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Excellent watch does what it promises in its description. Beautiful in its appearance. He supports Greek in messages and phone directory. The pressure readings are good. You'll always count three times. (Don't expect extreme precision from such devices but you'll always see roughly the image of the pressure that's in it). Oxygen and pulses accurately. To tell you the truth, I didn't think it would be this good. The battery with moderate use lasts a week.
I have received the smart watch yesterday and i have been wearing it since then. Its as described it has a lot of themes. I can not say if its accurate on the section of blood pressure measurements heart rate etc because i can not compare it to an other instrument but compared to my previous smart watch it shows similar results. The battery life after i fully charged it and heavy use on testing has dropped almost 10% so i believe that it will last at least a week without the use of call receive function. If there is a significant change of the first impression i will come back to let everyone one know. For now i would recommend it for the price of 20€.