Quick answer
If you live alone or with a partner, the Ninja CRISPi PRO or the Speedi will cover most meals without taking over the worktop. A family of three to five will get the most from the Dual Zone, because it can cook two different foods at once. Bigger households, or anyone short on worktop space, should look at the Double Stack XL, and if you want something closer to a mini oven and multi-cooker in one, go for the Combi.
Ninja sells a lot of air fryers in the UK, and the names don’t make it easy to work out which is which. This guide compares the five Ninja models that are live deals on Amazon UK right now. We explain what each is good at, and where it falls short. For more offers, browse our Black Friday deals.
How to choose by household size and kitchen space
One or two people. A single-basket or single-pot machine is usually enough. The CRISPi PRO’s glass containers double as storage dishes, so you can prep, cook and keep leftovers in the same dish. The Speedi suits you if you would rather cook a whole meal in one go than just air fry.
Three to five people. This is where two drawers start to pay off. The Dual Zone lets you cook chicken in one drawer and chips in the other, then finish both at the same time.
Six or more, or regular batch cooking. The Double Stack XL has the biggest air fryer capacity here. Ninja says it can feed up to 8. The Combi is the other option for large meals. Ninja says it makes three-part meals for up to 8 people.
Short on worktop space? Measure before you buy. Side-by-side drawers like the Dual Zone take up width. The Double Stack stacks its drawers vertically, and Ninja designed it to save space for that reason. Combi-style machines are boxy, so check the height under your wall cupboards and leave room around the vents.
Ninja air fryers compared: model by model
The Dual Zone is the model most people picture when they think of a Ninja air fryer. It has two independent 3.8L drawers, so you can cook two foods at different temperatures and times. Sync makes both drawers finish together, and Match copies the same setting across both when you need a bigger batch of one thing.
Good at: cooking a main and a side at once, everyday family meals, simple controls.
Less good at: whole chickens or large joints, because each drawer is only 3.8L. It is also wide on the worktop.
Key features
- 7.6L total, in two 3.8L drawers
- 6 functions: Air Fry, Max Crisp, Roast, Bake, Dehydrate and Reheat
- Sync and Match functions
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The Double Stack puts two drawers on top of each other instead of side by side. Each drawer is 4.75L, and the included racks give you four cooking levels in total.
Good at: big batches, cooking for up to 8, saving worktop width.
Less good at: short spaces under wall cupboards, because it is taller. The racks also mean more parts to wash.
Key features
- 9.5L total, in two stacked 4.75L drawers
- 6 functions, including Max Crisp, Air Fry, Roast, Bake, Reheat and Dehydrate
- Four cooking levels using the included racks
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The CRISPi PRO works differently from a drawer air fryer. A heating unit sits on top of glass containers, so you can watch your food cook and serve straight from the dish. It comes with a 5.7L and a 2.3L container, both with storage lids, which makes it useful for meal prep and leftovers.
Good at: small kitchens, couples, meal prep, seeing your food while it cooks, glass rather than a non-stick basket.
Less good at: cooking two foods at once. With 5 functions, it also does less than the Speedi or Combi.
Key features
- 5.7L and 2.3L glass containers with storage lids
- 5 functions: Max Crisp, Air Fry, Bake, Prove and Re-crisp
- Glass containers are dishwasher safe (top rack only, per Ninja’s guide)
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The Speedi is a multi-cooker first and an air fryer second. A SmartSwitch moves it between Rapid Cooker mode, which uses steam with convection heat, and Air Fry/Hob mode. Speedi Meals is designed to cook a complete meal in one go.
Good at: one-pot meals for up to 4, slow cooking and searing in the same pot, replacing several gadgets.
Less good at: cooking two separate air-fried foods at once. It also takes longer to learn than a basic air fryer.
Key features
- 5.7L non-stick, dishwasher-safe pot
- 12 functions, including Speedi Meals, Steam Air Fry, Steam Bake, Grill, Air Fry, Slow Cook, Sear/Sauté and Prove
- Cook & Crisp Tray included
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The Combi is the closest thing here to a small second oven. It uses steam together with convection heat, and Combi Meals cooks a three-part meal in one go. It comes with a Combi Pan and a Bake Tray.
Good at: family-sized meals, baking and roasting, cooking without the main oven.
Less good at: compact kitchens, because it is bulky. If you only want crispy chips, it is more machine than you need.
Key features
- Listed at 12.5L capacity, for meals for up to 8 people
- 12 functions, including Combi Meals, Combi Crisp, Combi Bake, Rice/Pasta, Steam, Slow Cook, Air Fry and Grill
- Combi Pan and Bake Tray included
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What about running costs?
Running costs depend more on how much you cook than on which brand you buy. The Energy Saving Trust says ovens make sense for batch cooking, while an air fryer can be cheaper if you only cook for one or two people. For a cost-per-use comparison, read our guide to air fryer vs oven vs slow cooker vs microwave running costs.
How to spot a real Black Friday price drop
Ninja air fryers appear in almost every Black Friday sale, but not every “deal” is a real saving. Before you buy:
- Check the exact model code. Ninja sells near-identical machines under different codes, colours and bundles. Make sure the listing matches the model you researched.
- Be wary of “was” prices. A crossed-out price is only useful if the item really sold at that price for a while. Look at the price history rather than trusting the badge.
- Compare bundles carefully. Only count accessories you would actually use.
- Check the seller. Look for “sold by Amazon” or the official brand store, and check returns and guarantee details. Ninja asks you to register the product to activate its guarantee.
We only list live deals, and prices change often, so tap through to check today’s price on Amazon. See everything we’re tracking on our Black Friday deals page.
Cheaper alternatives to Ninja
If a Ninja is more than you want to spend, these alternatives are live deals too.
You can also search all air fryers on Amazon UK to compare more options. For more buying guides, visit our blog.
