Bought at the end of November, it connected to the phone via Bluetooth and since then has not left my hand.....
So for the past 5 months, it has recorded everything I do (heart rate, distance, O2, sleep, etc.)
Its measurements are often incorrect...
During sleep, it definitely does not have accurate measurements that I consider worth evaluating....
As for blood saturation, it just says what it wants... many times it considers me "dead".... (okay, now here pulse oximeters lose accuracy, so why wouldn't a watch?)
As for the heart rate, I also think it loses quite a bit since I was a long-distance runner and always had purely running watches, and I see that it does not easily catch the changes in pace.
For the above, it is very likely that you need to wear it tightly as the instructions say, and maybe it's because I wear it relatively loosely....
In steps, while I have proven that it counts normally while walking, many times while driving for about an hour, it shows that I walked 1000 steps.....
I only take it off in the shower because I read that for someone, the speaker started behaving strangely after bathing, so I don't want to risk it even though most of the comments I've seen do not mention such an issue, but you never know.....
On the positive side, you receive messages, emails, calls without needing to constantly check your phone.... like the great convenience of talking from the watch.
A tremendous advantage is the very long battery life!!!!
If you are an athlete, I recommend getting a running watch (Suunto, Garmin) which have been in this sport for years and have many more functions since these watches were made for that....
Overall, a very good watch, beautiful with a very good display, and basic functions.
If you don't want something specialized, I recommend it for its very long battery life, since other watches of similar level do not have even half the duration...
Also, very good construction, its price, and I bought a bracelet which really enhanced the appearance of the watch!!!!!
I come back....
1 week before completing a year since its purchase, the battery suddenly started lasting 36 hours... I took it to the store where I bought it and I was exactly one week before the battery warranty expired (which is 1 year)... they changed the battery and the watch seemed to be working well, but since yesterday I see that the battery is starting to drain faster than it should... unfortunately, I have the impression that it won't last long...