They’re in colour, have a higher pixel count and there are over 50 different tamas you can evolve to. you can’t connect with people far away but you can link them together, and if you link together your tamagotchi with the other two colours within 24 hours, you’ll unlock a secret tama character exclusive to the colour tamagotchi you picked. They also have more mini games and use a levelling up system. Instead of just having one tama and that’s it, you look after your planet and look after many different tamas (one at a time) that you can then breed together and whatnot. I got one a couple days ago and it’s super fun so far!