This article summarizes the differences among the PowerBook 165c, 180, and 180c.

Key differences:
* PowerBook 180 is active-matrix gray-scale, 165c is passive-matrix color,
and 180c is active-matrix color. The color models have smaller display
screens (when measured diagonally), but have more pixels for higher
resolution.
* The batteries in the color systems need more frequent recharging.
* The color systems are slightly taller and heavier.
* 160MB hard drive is a PowerBook 180c option.

In addition, the PowerBook 180c has stricter temperature ranges (see the specifications).