Fitbit Charge (FB404SLS-EU)

well, let's start with the appearance. The strap is made of black rubber, and the screen remains the same as in the previous model. However, in my opinion, the elasticity has changed, plus the clasp now fastens much better with one hand without any issues, whereas in the previous model this was a bit inconvenient. So, what can we see on the screen: time, steps, distance covered during the day, steps also for the day, and the number of calories burned in one day. There is also a useless feature like setting up call and SMS notifications on the bracelet, but you can only see who called or messaged you, you won't be able to pick up or reply. Synchronization with a computer or phones is done via a cord (with a computer) and via Wi-Fi with a phone, and compatibility is possible with both Android and iOS through the Fitbit app. Now the capabilities through Fitbit: what you can see on the phone, for the day you can check how you slept, see the number of hours of sleep without tossing and turning, then you can see how long your sleep was restless, how many times you turned over during the night. It automatically determines how much you need to sleep based on this information and can wake you up. Similarly, you can view overall information for the week, month, year, and total amount since the purchase. On the positive side, you can also see how your friends are doing, so to speak, competitions, how many steps everyone has taken and how many calories everyone has burned.