First, verify that the basket and any removable trays are explicitly labeled as dishwasher‑safe, because some models only allow hand‑washing. Also look at the basket material; stainless steel or coated metal tends to hold up better than plastic. Finally, balance capacity, power wattage, and the range of cooking functions to ensure the unit meets your typical meal sizes and cooking styles.

Dual‑basket models let you prepare two different foods at once or the same dish in separate zones, which cuts overall cooking time and eliminates the need to re‑load a single basket. They often provide a combined capacity similar to a larger single‑basket unit, but the footprint can be slightly larger. The added complexity of separate controls may be a learning curve, but the flexibility is valuable for families or meal‑prepping.

The Ninja DZ201 Foodi DualZone 8‑quart model stands out because it combines a high 8‑quart capacity with two independent 4‑quart baskets, six cooking functions, and dishwasher‑safe components at a price point that undercuts many premium single‑basket models. Its Smart Finish and Match Cook features also reduce the need for multiple appliances, delivering strong overall value for families that cook varied meals together.

Higher temperature limits, such as 450°F, often require robust heating elements and may use metal baskets that can withstand the heat, which are typically dishwasher‑safe. However, some ultra‑high‑temp designs incorporate non‑metallic coatings that could degrade with repeated dishwasher cycles, so checking the manufacturer's care instructions is essential. In most reputable brands, the high‑temp capability and dishwasher safety coexist without issue.

Presets simplify cooking by automatically setting time and temperature for common foods, which is helpful for beginners and for quick weeknight meals. While a larger preset library (e.g., six to ten options) offers more convenience, the core functions—air fry, roast, bake, dehydrate—cover most needs. Prioritize models that include the presets you use most often rather than chasing every possible function.

Not necessarily; many manufacturers design larger‑capacity units with a compact footprint by using vertical height rather than width. For example, the Ninja DualZone keeps a relatively slim base despite its 8‑quart capacity. Still, measure your countertop or cabinet space and compare dimensions, because a taller unit may still be inconvenient in low‑clearance kitchens.

The Ninja DualZone features two independent 4‑quart baskets with Smart Finish technology, allowing simultaneous cooking of two dishes, whereas the Cuisinart 9‑quart offers a single large basket with five cooking functions and six presets. Ninja’s dual‑zone design provides more flexibility for multi‑dish meals, while Cuisinart’s larger single basket is better for cooking one big item, like a whole chicken, with fewer moving parts. Both have dishwasher‑safe baskets, but Ninja adds the advantage of zone‑specific temperature control.

The Ninja Crispi combines a compact PowerPod with interchangeable glass containers, delivering air‑fry performance in a smaller footprint and allowing easy storage of leftovers in the same containers. Traditional countertop air fryers typically have a fixed basket and larger exterior size, which can dominate kitchen space. For everyday use, the Crispi offers versatility and portability, but it may have a lower maximum capacity than larger models like the Ninja DualZone or Cuisinart 9‑quart.