- Battery - if you turn off the automatic heart rate check and do not use gps, one charge will probably last for more than a month. With a record of heart rate and training, it eats up 5 percent per hour. The screen is excellent, it is perfectly visible both in bright sun and in the shade. You can control the player on your phone. I have not had the opportunity to swim in them yet, but I hope they are really waterproof, I am going to put them on in the sea when I get there.
- The pulse sensor measures the pulse even at the table. It's a shame that at the table he is better than mine, always 60-70. A rash came from the native strap (I don’t remember that I had a rash from something before). She wore it only a few times at night, she lies mercilessly about sleep. One night I first read for 40 minutes, then woke up for a few minutes in the middle of the night - Amazfit wrote down that she fell asleep immediately (it seemed that the reading was not boring) and did not wake up until the morning. The other night I fell asleep without reaching the pillow and woke up only by the alarm clock - I wrote down that I fell asleep 2 hours later and woke up about an hour in the middle of the night (fig knows, maybe I'm a sleepwalker, but so far no one has complained). Sometimes he records the sleep of the table, as well as his pulse. The table sleeps badly. (in the screenshot just a dream of the table)