Hello, in addition to what iAM says you, you can have a look at some TamaTalk threads.
One that helped me in my decision on which one to buy was this one:
https://www.tamatalk.com/threads/meets-on-vs-pix.200453/I spent almost a month thinking about which Tamagotchi with colour screen to buy. In the end I decided for Pix and I don't regret it at all!
If what you want is that tamas have a couple, that they have eggs or mix genetics I don't think Pix is what you are looking for.
On the other hand, if what you want is an experience closer to the classic Tamagotchi but updated to modern times and with a colour screen, it might be to your liking!
The Pix doesn't use infrared or bluetooth connections, it doesn't have an app to interact. Everything works without an associated server because it works through QR codes.
Some of the negative things about the Pix:
-Pix uses AAA batteries. The battery life is very short, so it is recommended to use rechargeable batteries (they are cheap and easy to find to buy)
-It is a lesser evil but sometimes the touch control of the buttons fails. Especially at the beginning until you get used to how to press the buttons so that the Tamagotchi recognises your touch. Once mastered the buttons it will be easy to handle.
Regarding the opinions you have found on the Internet. The best thing to do is to try it out and draw your own conclusions.
I hope I have been able to help you and that you enjoy your new acquisition which, if I have not read correctly, will arrive tomorrow!
Regards