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The Ninja Prestige Smart XL is a countertop convection oven and air fryer with a rear heat source, a smart surround convection fan and a built-in food thermometer tied to Ninja's Pro Cook System. It fits 9 slices of toast, runs from 180°F to 450°F and preheats in about 90 seconds, so it covers air frying, roasting, baking, dehydrating and toasting in one box. It suits households that want one appliance instead of a separate air fryer and toaster oven, and it is large: about 20 inches wide and 17 inches deep, so measure your counter first. Against basket-style air fryers it trades crisping speed for capacity and versatility; against plain toaster ovens it adds real convection and probe-guided cooking. Owners rate it highly overall, with the usual complaints about size and a learning curve.
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Lowest price we've seen: $249.95 on Nov 11 at Crate & Barrel. Tracked across 15 stores since Nov 11.
Owners rate it 4.7 out of 5 across 448 ratings and mostly praise its size, even convection cooking and the probe. Criticism centers on the counter space it takes and the time needed to learn the controls and presets.
The Ninja Prestige Smart XL Air Fryer & Countertop Oven is an extra-large countertop oven that can air fry and dehydrate. It uses Smart Surround Convection, with a rear heat source and a convection fan. It preheats in 90 seconds.
The exterior and door are stainless steel, and the interior has a non-stick finish. Button controls and a digital display set the temperature, which ranges from 180°F to 450°F. The oven holds 9 slices of toast and comes with 2 wire racks and a thermometer.






