My initial experience with the watch is very good (using it for about 1 month).
It looks incredibly high-quality except for the bottom part which is made of relatively soft plastic and can be easily scratched, but it's not visible anyway. The top part is relatively durable, as I have accidentally hit or rubbed it against various surfaces and it still has no damage. The two straps included in the package (silicone and leather) are really high-quality and have a nice feel in the hand, and both look very premium and beautiful on the watch. They change easily in seconds, so you can match them according to the occasion/appearance.
The screen (I always use it on automatic brightness) has very good clarity and struggles a bit in bright sunlight but remains clear. Of course, this depends on the watch face that everyone uses (for which it should be noted that there are many free options for all tastes through the Mi Fit app).
In terms of functions and usability, it works perfectly with Xiaomi/Redmi/Poco phones, and the new Mi Fitness app is quite clean and user-friendly, although I would like a little more customization and options.
In terms of measurements, it works quite well and is relatively close to real numbers when compared to more specialized tools, but don't expect accuracy from a medical device or a specialized fitness watch with triple the price.
In relaxed workouts, it seems to measure them well, although personally, I don't do outdoor sports like running or cycling to have an opinion on its tracking and GPS.
The call function requires the watch to be connected to a phone since it doesn't have a SIM card, but it works quite well, and the Bluetooth has an impressive range. The quality of the speaker and call is above average, but it's purely for short conversations where using a mobile or hands-free is not possible.
As usual, the battery life is where it "hurts," which is not bad, but not particularly good either. Permanently connected to Bluetooth with notifications for messenger, IG, and calls, almost daily use for 30 minutes of training, monitoring sleep/pulse/oxygen all day long, and automatic brightness, it barely lasts 6 days, and that's with a brand new battery, so I'm afraid it will drop even more in the future. On the plus side, wireless charging is quite practical if you use corresponding products (Bluetooth headphones, reverse charge mobile or power bank, etc.).
Overall, it's a very elegant and high-quality watch for every occasion, doing many things well but not perfectly. If you want something all-around without having high demands on specific functions, it's a decent choice. If, on the other hand, you're looking for a precision tool for workouts, you should probably look at more specialized (and expensive) smartwatches.