Mikhail
Inaccurat blood pressure numbers
1. Blood pressure readings are dangerously inaccurate. Can't rely on them. (I have hypertension but this thing has never shown more than 140 mmHg) Under certain circumstances it can be dangerous for your health. 2. Sleeping tracker is also shows "wonders" Even if not asleep anymore, it shows that you're in light sleep... So, bottom line: wait till something more decent will show up on the market. DO NOT BUY

