Ninja Foodi FD302 vs OP302 According to the manufacturer, the OP301, OP302, and OP305 are all 6.5-quart models. The Dehydrate feature is absent from the OP301, although it is present in the OP302 and OP305. Additionally, the things that come with each model are unique. There's also a ceramic-coated Cook & CrispTM Basket and a 4-quart ceramic-coated Oven with 1400-watt power and a 45-recipe book, as well as a pressure cover and crisping lid. The 11-in-1 FD302 has a 6.5-quart capacity. Some of the features are Sous Vide, Pressure Cooker, Air Fryer/Crisper; Dehydrate; Steam; Make Yogurt; Bake/Roast; Sear/Sauté; Broil; and Keep Foods Warm Inside the Pot. It also comes with a 45-recipe cookbook. There is an 8-quart capacity in the FD402 9-in-1. Only the sous vide and keep warm capabilities of the FD302 are missing from this model. Consistent outcomes can be achieved with the use of sous vide (pronounced suu-veed). Until recently, it was exclusively available to those in the know. Sous vide cooking has been employed in high-end restaurants for many years to ensure that food is always cooked to perfection. There are no changes to the OP301's features, however there is a new feature called Dehydrate on the OP302. The OP305 also comes with the Cook & CrispTM Layered Insert and the other components included in the other two units. Assortment: 4 quart cooking and crisping basket with TenderCrisp Technology Large capacity ceramic-coated, PTFE/PFOA-free basket can hold up to a 5-pound fowl or 3 pounds of meat. Nonstick surfaces make cleanup a pleasure, and you'll have enough French fries to feed your entire family. Never, ever, ever, ever, ever, ever wash the stove base in the dishwasher. Always use a non-abrasive sponge or cleaning utensil while cleaning your device. There are a total of 14 levels of protection: Because of the rigorous testing required to acquire the UL safety certification, you may cook with complete confidence and peace of mind. Combination of pressure cooking and air frying into one pot, so you can quickly seal in liquids and change lids for a beautiful, crispy finish. Nonstick 6.5-quart saucepan holds up to a 5-pound chicken or a 6-pound roast for large-group dinners, and it's easy to clean.