Ninja Detect Duo vs Ninja Professional Plus Kitchen System BN800

Buy the Ninja Detect Duo if you want the simplest path to a smooth blend: one dial, BlendSense auto-adjusts power and time, and the 72 oz pitcher plus 24 oz cup cover daily smoothies. Buy the Ninja Professional Plus BN800 if you also chop, puree or mix dough, since its 8-cup processor bowl and dough capacity make it a three-in-one system. Both rate 4.5 stars and both use plastic jars with stainless steel blades; the Detect Duo is lighter at about 9.9 lb, while the BN800 is a heavier 15.7 lb unit with more attachments and more preset programs.

• Choose the Ninja Detect Duo if you mostly blend smoothies and want automatic speed and time with a single dial instead of picking presets.
• Choose the Ninja Professional Plus BN800 if you want one machine that also chops, purees and mixes dough in a food processor bowl.