Focus on capacity that matches your household size, the range of cooking functions, and how the unit handles temperature control. Look for models with features like rapid air circulation, nonstick or ceramic coatings, and easy‑to‑clean baskets. Also consider the footprint on your countertop and whether a viewing window or digital display adds convenience.

Both deliver up to 450 °F and 1500 W of power, but the Ninja offers six cooking modes including a dedicated Dehydrate function, while the Cosori emphasizes a 5‑fan speed system and a premium ceramic‑coated basket. The Ninja’s larger 6.5‑qt basket fits up to 9 lb of wings, making it better for big families, whereas the Cosori’s square basket saves counter space. Price‑to‑feature ratio often favors the Ninja for its extra capacity and versatility.

A larger basket, like the 8.5‑qt Kitchen Elite or the 10‑qt Instant Pot, lets you cook whole meals in one go, reducing batch cooking time. However, if you typically prepare food for two to three people, a 6‑qt model such as the DEIME or Gourmia provides sufficient space at a lower price. Evaluate your typical serving sizes and kitchen storage before opting for the biggest unit.

Ceramic coatings, found on the Cosori and some DEIME models, resist scratching and provide a truly nonstick surface, making cleanup easier and reducing the need for oil. The Ninja Crispi’s glass containers are BPA‑free and allow you to see food progress without opening the lid, which helps maintain temperature stability. Both options support healthier cooking and longer appliance life.

A broader range, such as 90 °F–450 °F on the Cosori, gives you flexibility for delicate tasks like dehydrating fruit and high‑heat searing of meats. Most 1500 W models top out around 400 °F–450 °F, which is sufficient for fries, wings, and baked goods. Choose a unit with the higher maximum if you plan to experiment with a variety of recipes.

The Ninja Pro XL highlights a Max Crisp setting that cooks frozen items quickly without thawing, while the Cosori’s TurboBlaze technology also speeds up frozen food preparation. Both provide preset programs that automatically adjust time and temperature for items like frozen fries or chicken nuggets, saving you the guesswork.

The Gourmia and Instant Pot feature dishwasher‑safe baskets and crisper trays, reducing manual scrubbing. Ceramic‑coated baskets on the Cosori and DEIME resist food buildup, while the Ninja Crispi’s glass containers can be washed in the sink without concern for coating wear. Look for removable, nonstick racks and a simple digital interface to streamline cleaning.

Higher‑priced models like the Ninja Pro XL and Instant Pot offer extensive capacity (6.5‑qt to 10‑qt) and multiple cooking functions, delivering strong value for large families or avid cooks. Mid‑range options such as the Cosori, DEIME, and Gourmia balance capacity, feature set, and price, making them ideal for everyday use. Budget‑friendly choices like the Panana 8‑qt still provide 1500 W power and 8‑in‑1 functions, offering solid performance at a lower cost.