A part of the review has been auto-translated.
Real review: 2,5 STARS (if I give less then a good review 4stars, my review will not be posted) . It is a Ok product. If you buy in a promotion for 22 euros or less. . You can spend 44 euros and buy a good camera from EUFY, that provide a real quality service. . The tracking is not good. . Only buy internacional version, avoid the Chinese versions. Do not buy the video doorbell too. Only if they release one day the International version, you will thank me one day. . FINAL VEREDICT: This camera is good for checking sometimes what is happening in your house. Not for real security.
It's a really good camera worth buying, xiaomi's only foul is that it doesn't have a power supply in the packaging but just cable and a small support base. Luckily I had my old cell phone charger or I'd be in trouble.