After the Gameboy and the Gameboy Pocket came the Gameboy Color. It was similar to it's predecessors, but it was lighter and capable of color.
Hardware Specifications
CPU: Z80
CPU Speed: 8 Mhz
RAM: 16 Kbyte
Maximum Resolution: 160 x 144 pixels
Colors: 32,000
Maximum number of colors: 56
Maximum sprite size: 8 x 16
Maximum number of sprites: 40 sprites
Minimum/Maximum cart size: 256Kbit - 16Mbit
Sound: 4 channel