Compact body of Casio EX-ZR300 makes it much easier to carry it with you all day. 205g
This camera is so light that you can comfortably carry it around all day. 12.5X Optical Zoom
12.5X Optical Zoom of Casio EX-ZR300 will give you a lot of flexibility considering this will be your only camera during the day.
Small 1/2.3" (6.17 x 4.55 mm) sensor
Casio EX-ZR300'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.