GameBoy Advance or Micro

[Hulababy]

Looking at these for 5yo DD, mainly for when travelling.

What are the differences between the two models?

Which can you actually get hold of and where?

Do they play the same games?

Anything else I need to know?

Thanks.

Anyone?

Never mind. Have gone for a pink Gameboy Advance SP. Comes with Catz and Dogz games. Also now bidding on a Dora game and a Barbie Grrovy game, but depends on what they go for!