Ninja has become the default answer to "which air fryer should I buy", to the point where a lot of "best air fryer" lists barely look past it. That's brand strength, not a settled verdict. The Cosori TurboBlaze 6L has been quietly picking up strong reviews, and on paper it out-specs a similarly sized Ninja on a couple of things that actually matter. This isn't a "cheaper dupe" pitch, since the prices are close. It's a look at which one suits you, including where Ninja genuinely still wins.
The two things people are really choosing between
Most of this decision comes down to one question: do you want one large drawer or two independent smaller ones? Ninja's most recommended model, the Foodi Max Dual AF400UK, is a dual-zone machine: two baskets you can run at different settings, so your chips and your chicken finish together. The Cosori TurboBlaze is a single 6L drawer. That single design choice drives most of the real differences below, more than any spec sheet number does.
The single-drawer pick
Cosori TurboBlaze Air Fryer 6L: £109.99
A 6-litre single-drawer air fryer built around a DC brushless motor, which is the part reviewers keep singling out. It stays under about 60 decibels and cooks faster than the previous Cosori generation. There are five fan speeds and nine functions: air fry, roast, bake, grill, dehydrate, reheat and proof.
Capacity: A 6L drawer is enough for a family-size batch, chips for four, or a small whole chicken, in one go. That's more usable single-drawer space than a standard 5.2L Ninja.
Speed and noise: The DC motor is the headline. It reaches temperature fast and runs quieter than most air fryers, which is a bigger deal than it sounds if your kitchen is open-plan.
Cleaning: A PFAS-free ceramic basket that wipes clean with ordinary washing-up liquid, and it's dishwasher-friendly.
Reviews: It's not an unknown quantity. UK reviewers including Trusted Reviews and Woman & Home have rated it highly, which backs up the spec sheet with independent testing rather than just our word.
Pros:
- Larger single drawer (6L) than a standard 5.2L Ninja
- Quiet, fast DC motor
- PFAS-free ceramic basket, easy to clean
- Strong independent UK reviews
Cons:
- Single drawer only, no dual-zone cooking
- Cosori's app and recipe ecosystem is smaller than Ninja's
Verdict: The better pick if you want one big, fast, quiet drawer and don't need to cook two things separately at once.
Where Ninja still wins
Being straight about this: two foods, two settings, finishing together is a real feature. Ninja's dual-zone AF400UK does it. The single-drawer Cosori cannot. Ninja also has the bigger accessory range and the larger, more active recipe community, which genuinely helps if you're new to air frying and want hand-holding. The trade-off is size and price: the dual-zone Ninja is a big unit that takes real counter space, and it usually costs more than the Cosori. A single-drawer Ninja like the AF160UK is closer in price, but then you're giving up the dual-zone feature that was Ninja's main advantage in the first place.
Quick comparison
| Cosori TurboBlaze 6L | Ninja AF160UK (single) | Ninja AF400UK (dual) | |
|---|---|---|---|
| Price | £109.99 | Around £130–£140 | Around £165–£230 |
| Drawers | One (6L) | One (5.2L) | Two (9.5L total) |
| Dual-zone cooking | No | No | Yes |
| Motor | DC brushless, quiet | Standard | Standard |
| Basket | PFAS-free ceramic | Non-stick | Non-stick |
| Best for | One big fast drawer | Smallest budget single | Cooking two foods at once |
Frequently asked
Is Cosori as good as Ninja? On a like-for-like single drawer, the TurboBlaze matches or beats a similar Ninja on drawer size, motor, and noise, and reviews back that up. Ninja's real advantage is the dual-zone models and its bigger ecosystem, not that a single Ninja drawer is better than this one.
Does the Cosori TurboBlaze have two drawers? No, it's a single 6L drawer. If dual-zone cooking is your priority, that's the one clear reason to choose a Ninja Foodi Max Dual instead.
Which is quieter? The Cosori, thanks to its DC motor. It's one of the quieter air fryers at this size, which reviewers consistently note.
What does an air fryer actually cost to run? Far less than the oven it replaces, which is the saving people tend to overlook. A machine like this draws roughly 1.5kW but only for the minutes it is actually cooking, and it needs no preheating of a large empty cavity. For the small, frequent meals most people use one for, running costs are a fraction of a conventional oven's. That gap keeps paying back long after the purchase price stops mattering.
Does a cheaper air fryer wear out faster? Not reliably, no. The parts that fail first tend to be the basket coating and the fan bearing, and neither tracks neatly with price. What does matter is whether replacement baskets are sold separately, since a worn non-stick surface is the usual reason a working air fryer gets thrown away.
Is a 6L air fryer big enough for a family? For most families of three or four, yes, for everyday portions. If you routinely cook two separate dishes at once, that's an argument for a dual-zone machine rather than a bigger single drawer.
How we priced this
The live Cosori price above tracks the retailer directly, so it changes when they change it. The Ninja figures are current UK street prices for the two most relevant models, not RRPs. Each price says which Ninja it refers to. The single-drawer and dual-zone models are not the same product, despite the shared brand.
The bottom line
Ninja earns its reputation on dual-zone cooking and its ecosystem, and if that two-drawer feature is what you want, buy the Ninja. But the default "just get a Ninja" advice skips a genuinely strong single-drawer option. For one large, fast, quiet drawer with a PFAS-free basket, the Cosori TurboBlaze is the better buy, and it's the one we'd point most people to unless they specifically need two zones.
Kitting out the rest of the home on a budget? We take the same approach in our guide to a cheap Dyson alternative, and in our wider roundup of tech deals that beat the big brands. The rest of the kitchen is covered under Home & Kitchen.