A juicer and blender hold significant differences especially their final products. A blender processes a whole fruit or vegetable, thus, resulting to a liquefied and pureed product. A juice also produces liquids however, a juicer separated the fibers from the fruit to make the juices. So a juicer will release a thin juice consistency whilst a blender will produce a thicker and smoothie-like consistency. If you want to make juice using a blender, then you have to sieve it after blending.