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Ninja Speedi ON500UK 12-in-1 Multi-Cooker, 5.7L1 / 7
Product guide

Ninja Speedi ON500UK 12-in-1 Multi-Cooker, 5.7L

The Ninja Speedi ON500UK is a 12-in-1 multi-cooker with air-fry and slow-cook functions, plus steam-and-convection cooking for combining components in one meal. Its 5.7-litre capacity is described as suitable for up to four portions, so it is aimed more at smaller households than large-batch cooking.

At a glance

  • Steam and convection cooking can cook grains or pasta, vegetables and a crisped main together using the Cook & Crisp Tray.
  • The listing gives examples for up to four portions: 4 chicken breasts, 200g of rice or 225g of pasta, plus 500g of potatoes.
  • The 12 named functions range from air frying, grilling and baking to slow cooking, proving and reheating.
Price
£159.00Save 31%

Reference price: £229.99

Price checked: 12 Nov 2026

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Often bought together

Pros and cons

Pros

  • Combines multiple cooking methods in one appliance, including steam-assisted cooking and air frying.
  • The stated capacity and portion examples make its intended smaller-household scale clear.
  • The listing says the appliance is dishwasher safe, and customer feedback specifically notes the pot is dishwasher-safe.

Cons

  • The stated four-portion capacity may be restrictive for larger households or batch cooking.

Technical specifications

12 specifications
Identity
BrandNinja
ModelON500UK
Functions12
Capacity and power
Capacity5.7 litres
Wattage1760 watts
Voltage230 Volts
Controls
Control methodTouch
Dimensions and installation
Dimensions listed38.9D x 38.9W x 35.5H centimetres
Weight listed7.29 Kilograms
Materials and care
Material listedStainless Steel
Dishwasher safe?Yes
Cooking functions
Functions listedSpeedi Meals, Steam Air Fry, Steam Bake, Steam, Grill, Air Fry, Bake/Roast, Dehydrate, Sear/Sauté, Slow Cook, Prove & Reheat.

What to know before buying

Listing details to confirm

Listing details are inconsistent on weight: the specifications state 7.29 Kilograms while the feature text says 7.4kg. The feature text also claims a 2-year guarantee upon registration with Ninja, the separate warranty field says “2 year warranty.”, so registration conditions should be checked.

Who is it for?

A good fit for

  • Small households seeking one appliance for air frying, steaming, slow cooking and other listed methods.
  • Buyers interested in cooking a main and side components together with the Cook & Crisp Tray.

Less suited to

  • People regularly cooking for more than four portions or prioritising large-batch capacity.
  • Buyers looking for a dedicated appliance with fewer cooking functions and a simpler stated use range.
Ninja Speedi ON500UK 12-in-1 Multi-Cooker, 5.7L · photo 2
Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 214 ratings
  • 5 stars85%85%
  • 4 stars6%6%
  • 3 stars5%5%
  • 2 stars1%1%
  • 1 star3%3%

Customer feedback is strongly positive overall: the supplied aggregate is 4.7 out of 5 from 214 ratings, and the customer summary highlights reported versatility, ease of use and cleaning, and quick cooking. Some customers describe meals taking around 15–17 minutes, but those experiences do not establish a general cooking time. For buyers considering the listed 12 functions and 5.7-litre capacity, the positive feedback is relevant to everyday flexibility, ratings alone do not show how well it suits every recipe or household size.

Positive themes

  • Customer feedback reports appreciation for versatility and ease of use.
  • The supplied summary mentions positive experiences with cooking results, cleaning and appearance.

Frequently asked questions

How much can the Ninja Speedi ON500UK cook?

It has a stated 5.7-litre capacity, and the listing describes cooking up to four portions, with examples including four chicken breasts or rice or pasta with potatoes.

Can it cook different parts of a meal together?

The listing says its steam-and-convection system can cook grains or pasta, vegetables and a crisped main together using the Cook & Crisp Tray.

What cooking functions does it have?

The listed functions are Speedi Meals, Steam Air Fry, Steam Bake, Steam, Grill, Air Fry, Bake/Roast, Dehydrate, Sear/Sauté, Slow Cook, Prove and Reheat.

Is the weight confirmed consistently?

No. The product details list 7.29 Kilograms, while the feature text gives 7.4kg, check the selected listing if weight is important.

Ninja Speedi ON500UK 12-in-1 Multi-Cooker, 5.7L · photo 3
Additional product photo 3

Alternative options

Offer details

  • The feature text states that a free 2-year guarantee requires registration with Ninja, confirm the terms for the selected listing.
Product details in Markdown