Head-to-head · spec by spec, a verdict per need

Ninja vs Cosori Air Fryer 2026

The Ninja MAX Dual Zone air fryer is the pick for capacity and speed, because each of its two 4.75L drawers fits a 2kg chicken.

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For watching food cook, pick the Cosori Dual air fryer 8.5L with clear window. Its 35 to 230°C range gives you precise control over the temperature.

By Bez, Editor✓ Updated 28 October 2026

Ninja MAX Dual Zone 9.5L air fryer (DZ400UK)See it on Amazon

Cosori Dual air fryer 8.5L with clear windowSee it on Amazon

Which one is for you?

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Which pick suits which need
Ifyou cook a whole chicken or family portions	Ninja MAX Dual Zone 9.5L air fryer (DZ400UK)	See it on Amazon
Ifyou like to check food without opening the drawer	Cosori Dual air fryer 8.5L with clear window	See it on Amazon
Ifyou want a grill setting	Cosori Dual air fryer 8.5L with clear window	See it on Amazon
Ifyou want dinner faster than the oven	Ninja MAX Dual Zone 9.5L air fryer (DZ400UK)	See it on Amazon
Ifyour worktop space is tight	Cosori Dual air fryer 8.5L with clear window	See it on Amazon

At a glance

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1★ Top pick
Ninja
Ninja MAX Dual Zone 9.5L air fryer (DZ400UK)Best for big families and speed
Cook two dishes at once, both ready together
See it on Amazon
2
Cosori
Cosori Dual air fryer 8.5L with clear windowBest for watching food cook
See your dinner cook through the window
See it on Amazon

Side by side

From the makers' and retailers' published factsAffiliate

The picks side by side
Pick	Best for	The fact that sets it apart	Where to buy
Ninja MAX Dual Zone 9.5L air fryer (DZ400UK)	big families and speed	Two independent 4.75L drawers cook 2 foods, 2 ways, both ready at the same time, and each fits up to 1.4kg of fries or a 2kg chicken.	See it on Amazon
Cosori Dual air fryer 8.5L with clear window	watching food cook	Two independent 4.25L zones, with Sync Cook for the same settings in both and Sync Finish to have different foods ready together.	See it on Amazon

Cook two different foods at once, and choose the dual air fryer that fits your family. Capacity, speed and a clear window settle it. Ninja gives you 9.5L across two 4.75L drawers, and says it cooks up to 75% faster than fan ovens. Only Cosori has a clear window, so pick it if you like to watch your food cook.

Both in detail

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Ninja MAX Dual Zone 9.5L air fryer (DZ400UK)

1★ Top pickBest for big families and speed

Ninja MAX Dual Zone 9.5L air fryer (DZ400UK)

Cook two dishes at once, both ready together.

What it is: The DZ400UK is a 9.5L air fryer with two independent 4.75L drawers, so you can cook two foods, two ways, with both ready at the same time. Each drawer takes up to 1.4kg of fries or a 2kg chicken.
Perfect for: It suits big families who want fast cooking and plenty of food in one go.
Why we picked it: Ninja says it cooks fish fingers and sausages up to 75% faster than fan ovens, preheat included. Six functions, from Max Crisp to Dehydrate, give you a lot of cooking in one machine. Air Fry also cuts fat by up to 75% against deep-fried hand-cut chips, and cooking sausages saves up to 65% on oven energy.

Two independent 4.75L drawers cook 2 foods, 2 ways, both ready at the same time, and each fits up to 1.4kg of fries or a 2kg chicken.
Six functions, Max Crisp, Air Fry, Roast, Bake, Reheat and Dehydrate, and up to 75% less fat with Air Fry versus deep-fried hand-cut chips.
Cooks up to 75% faster than fan ovens (fish fingers and sausages, including preheat) and saves up to 65% on oven energy for sausages.

The catch: It is wide, at 41.5 cm, and weighs 8.8 kg, so it needs a permanent spot on the worktop.

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Cosori Dual air fryer 8.5L with clear window

2Best for watching food cook

Cosori Dual air fryer 8.5L with clear window

See your dinner cook through the window.

What it is: The Cosori Dual gives you two independent cooking zones, so two foods can cook at once on different settings. Its clear window lets you keep an eye on your food as it cooks.
Perfect for: It suits you if you love watching food cook and want to check on it as it goes.
Why we picked it: Sync Cook gives both zones the same settings when you want a matching batch, and Sync Finish is built to get different foods finishing together. Each zone runs on its own, so one side can roast while the other reheats.

Two independent 4.25L zones, with Sync Cook for the same settings in both and Sync Finish to have different foods ready together.
A clear window and a 35 to 230°C temperature range for precise control.
Eight functions, air fry, roast, bake, reheat, grill, dry, SyncCook and SyncFinish, and up to 97% less oil.

The catch: Cosori warns that Sync Finish only lines up the end times if preheat is switched off on both baskets.

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How we chose

Our buying criteria

Every air fryer on this list needed two independent cooking zones, so you can cook two foods at once. Each one also had to publish its capacity in litres (L, the amount each basket holds), a clear list of functions, and a maker claim you can check, such as speed or less oil. Temperature is in °C, and size is in cm and kg. Capacity is the first thing to compare. Each dual air fryer here was checked against its maker's specs and live UK listings, and each one shows its catch.

Capacity per drawer, not just the total
Whether you want the clear window
Functions, including grill
Size: the Ninja is 41.5 cm wide and weighs 8.8 kg

How we choose every pick

Your questions, answered

Which is bigger, the Ninja or the Cosori?

The Ninja MAX Dual Zone is the bigger one, at 9.5L against the Cosori's 8.5L. Its two 4.75L drawers cook 2 foods, 2 ways, and both are ready at the same time. Big families and speed fans, this is your pick.

Does the Cosori air fryer have a window?

Yes! The Cosori Dual 8.5L has a clear window, so you can watch your food cook. It also runs from 35 to 230°C for precise control. Ideal for anyone who loves to keep an eye on dinner.

Can the Ninja cook two foods at once?

Yes, the Ninja MAX Dual Zone (DZ400UK) cooks two foods at once. It has two independent 4.75L drawers, so you can cook two foods two different ways, and both finish at the same time. Each drawer fits up to 1.4kg of fries or a 2kg chicken.

Does an air fryer use less energy than an oven?

Ninja says the MAX Dual Zone saves up to 65% on oven energy when cooking sausages, and cooks fish fingers and sausages up to 75% faster than fan ovens, preheat included. For speed and big families, the Ninja MAX Dual Zone is the one to get.

What temperatures does the Cosori air fryer reach?

The Cosori Dual 8.5L reaches 35 to 230°C for precise control. Its clear window also lets you watch your food cook.