Here's the full specs:
Couresty of
Wikipedia
The Micro also comes with a removable face plate that allows gamers to purchase replacements of varying colors and designs.
* Dimensions: 4 inches (10.16 cm) wide, 2 inches (5.08 cm) tall, 0.7 inches (1.78 cm) thick.
* Weight: 2.8 ounces. (~85 grams)
* Processor: Same as GBA SP.
* Colors: Varied colors and designs through a removable and customizable face plate. Some Examples
* Screen: 2 inches (5.08 cm) (vs. 2.9"/7.37 cm GBA), backlit, with adjustable brightness controls for use indoors or outdoors. Quoted as being the best screen in a Nintendo handheld thus far.
* Battery: built-in rechargeable lithium-ion battery.
* Headphones: supports standard headphones without additional accessories.
* Software: The official word from Nintendo is that the Game Boy Micro plays all games that a Game Boy Advance SP can. However, a IGN news article has stated that the Game boy Micro can play Game Boy Advance Video titles but not original Game Boy games or Game Boy Color games. Due to the cartridge slot being on the bottom, the Game Boy Micro (like the GBA SP) reverses controls on some early GBA tilt-sensor games such as Koro Koro Puzzle Happy Panechu. Note that WarioWare Twisted!, a later release, works properly with both top-loading and bottom-loading systems.