83.3X Optical Zoom 83.3X Optical Zoom of Nikon P900 will give you a lot of flexibility considering this will be your only camera during the day.
Medium size Body With relatively smaller body compared to DSLRs and better ergonomics compared to Compacts,Nikon P900is a good compromise between size and functionality.
899g Carrying this weight all day may not be very comfortable for you.
Body Thickness 137mm With a thickness of 137mm,Nikon P900 is not a pocketable camera for sure.
Small 1/2.3" (6.17 x 4.55 mm) sensor Nikon P900'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.