Here are the differences between the PowerBook Duo 250 and 270c. The PowerBook Duo 230 has been included for illustrative purposes.
Duo 250 Duo 270c Duo 230
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CPU 68030 @ 33MHz 68030 @ 33MHz 68030 @ 33MHz
FPU no yes no
Display 9" grayscale 8.4" color 9" grayscale
active-matrix active-matrix FSTN (Supertwist)
Colors/Grays 16 grayscales thousands of colors 16 grayscales
Supported @ 640 x 400
256 colors @
640 x 480
RAM Capacity 4 to 24MB 4 to 32MB 4 to 24MB
Hard Drive Size 200MB 240MB 80/120MB
Battery Type Type II NiMh Type II NiMh Type I NiMh
(Type II compatible
with software)
Battery Life 2.5 to 6 hrs 2 to 4 hrs 2 to 4.5 hrs
(Type II) (Type II) (Type I)
Battery no yes no
Reconditioning
Weight 4.2 lbs 4.8 lbs 4.2 lbs
Sleep LED no yes no
Duo Dock
Compatibility yes no, needs yes
Top Cover Retrofit
(Order # M1814Z/A)