The Ninja blender compares favorably with the Vitamix blender, standing up well to competition from Vitamix thanks to its dual-stage blending process, large capacity and exceptional number of optional attachments. The low price point of Ninja blenders and relative ease of use also helps them rate favorably.
Ninja blenders cost less than Vitamix systems, but they often come with more accessories to help users get more out of their blending or juicing. The large pitchers and bowls included with high-end Ninja blenders make them a good choice for preparing smoothies for friends and family, and the smaller profile allows them to fit in spaces where Vitamix systems can't. Both systems are especially versatile and user-friendly, but the Vitamix system is much noisier, according to ConsumerSearch. The site also notes that the Ninja Professional NJ600 doesn't always produce a consistent result, though it is ranked as the best blender available for under $100.
Cleanup is simple for both blender lines, and both make use of motors featuring up to two horsepower to power through tough chopping and blending tasks. The exceptional durability and long warranty period of the Vitamix line make it a good choice for heavy use, but the Ninja is a strong contender for budget-minded shoppers.