What is the difference bw macrophages and WBCs when their function is saame

Macrophage is a type of WBC.

White blood cells (WBCs) or leucocytes are classified into granulocytes and agranulocytes based on the presence or absence of granules.

Granulocytes include neutrophils, basophils, eosinophils, and mast cells. Their granules contain enzymes that damage or digest pathogens and release inflammatory mediators into the bloodstream.

Mononuclear leukocytes include lymphocytes, monocytes, macrophages, and dendritic cells. This group is involved in both innate and adaptive immune system function.