Quick decision: Choose SP080 for basic low-profile tray cooking and cooled flip-up storage, SP351 for the heated SearPlate and food thermometer, or DCT401 when two separate oven cavities solve your meal timing. Their programme numbers are not litre capacities.
| Exact review | Market and vessel | Useful distinction / offer |
|---|---|---|
| SP080 | US · Low-profile tray oven; check tray and food height | Choose it for flat tray meals, toast and a flip-up storage format. Do not transfer the eight-mode SP101 menu or an invented twelve-litre figure to this six-mode model. |
| SP351 | US · Tray oven with heated SearPlate | Choose Smart Dual Heat when you will use the heated SearPlate and probe. It is not a 38-litre oven, and the SearPlate's heat rating is not a universal air-fry temperature setting. See SP351 price |
| DCT401 | US · Two cavities behind FlexDoor; not a 12-L rating | The US Double Oven is useful when two foods need different programmes. The air-fry basket belongs to the lower convection cavity; twelve describes functions, not litres. See DCT401 price |
Flat food or two separate dishes?
A flip oven is naturally suited to flat trays, pizza and toast. DCT401 separates two oven jobs, with the air-fry basket in the lower convection cavity; it is a different layout rather than a larger flip oven.
The SearPlate distinction
SP351’s directly heated SearPlate is a real cooking-surface difference. Its high-heat capability must not be presented as the temperature for every air-fry function, and its probe works only with the supported modes.
Cleaning and storage
Follow the individual pan, basket, rack and crumb-tray cleaning instructions. Only flip a compatible oven after it has cooled; leave operating clearance for the door and ventilation when it is down.
What this comparison does and does not establish
These are specification and workflow differences, not results from a comparative cooking test. Select the exact regional model, check the supplied parts and seller condition, and compare complete delivered offers. We have not measured browning, noise, reliability or energy consumption side by side.
Choose by your kitchen and meals
Ninja Air Fryers: Model Reviews and Buying Guide · Ninja Air Fryers by Household: Portions, Meals and Timing · Ninja Air Fryer Size Guide: Baskets, Pots and Counter Space · Ninja Air Fryer Types: Drawers, Glass, Grills and Multicookers · Ninja Buying Priorities: Cleaning, Controls, Materials and Value.
Sources and review method
Clara Bennett checked the regional model information on October 24, 2026. This is a specification-led assessment; we have not bought or bench-tested these appliances. Meal-fit suggestions are editorial judgments, not measured serving or cooking-speed guarantees. Manufacturer performance and materials claims apply only to their stated model, components and test conditions. Prices, condition, accessories and warranty terms can change.
- SP080 manufacturer information / model support
- SP080 manufacturer-authored guide or archived model record
- SP351 manufacturer information / model support
- SP351 manufacturer-authored guide or archived model record
- DCT401 manufacturer information / model support
- DCT401 manufacturer-authored guide or archived model record
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About the Author
Clara Bennett
I write practical, model-specific air fryer reviews and comparisons. I focus on usable capacity, household fit, cleaning, materials, day-to-day ownership and value so you can choose the right appliance with fewer surprises.
Read my full profile and review method
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