Compact body of Nikon A100 makes it much easier to carry it with you all day. 119g
This camera is so light that you can comfortably carry it around all day. Body Thickness 20mm
With a thickness of only20mm,Nikon A100 is small as it could get.
5.0X Optical Zoom
A Lens with a higher zoom ratio would make it more practical as a carry everywhere camera.
Small 1/2.3" (6.17 x 4.55 mm) sensor
Nikon A100's small sensor struggles in low light situations compared to larger sensor. No RAW shooting capability
RAW files contains much more color information compared to JPEGs, and gives you more room for post processing without significant quality loss. They provide wider dynamic range and option to recover shadow and highlight clipping to some degree.