Is the Ninja Slushi Twist Worth Buying?

The Ninja SLUSHi Twist makes an impressive first impression: two frozen drinks, two flavours and the option to pour both into the same glass. The harder question is whether that party trick is worth more than £400. After comparing the current UK models, prices and independent hands-on testing, my view is fairly simple: the Ninja SLUSHi Twist is worth buying if you will genuinely use its two separate drink vessels. If most of the time you will make one flavour, one of Ninja's cheaper SLUSHi machines probably makes more financial sense. Before buying direct, you can also check our NinjaKitchen Voucher Codes page for wider Ninja offers. 

What makes the Ninja SLUSHi Twist different?

The important word in the product name is not really “Twist”. It is two.

The Ninja SLUSHi Twist FS702 has two separate 1,420ml maximum-fill vessels. They can make different drinks at the same time, or you can fit the slanted spouts and combine both into one glass. Ninja says the two vessels together can produce up to ten 260ml servings.

That creates some genuinely useful combinations rather than simply different colours. You could make a frozen margarita on one side and a non-alcoholic drink on the other, two different flavours for children, or a coffee frappé alongside a milkshake. Each side is controlled independently by Dual SlushAssist, which senses the mixture and adjusts the temperature.

This matters because the cheaper Ninja machines have only one vessel. They can make plenty of frozen drinks, but everyone is effectively drinking the same batch until you empty it and start again.

The £120 question: what are you actually paying extra for?

Price makes the Twist much easier to judge when it is compared with Ninja's other machines rather than reviewed on its own.

When I checked SharkNinja's UK prices, the standard Ninja SLUSHi FS301UK was £299.99, the SLUSHi XL was £329.99, and the SLUSHi Max was £349.99. The FS702 Twist was £419.99.

• Twist versus original SLUSHi: £120 more.
• Twist versus SLUSHi XL: £90 more.
• Twist versus SLUSHi Max: £70 more.

That premium is not simply buying a larger machine. In fact, the Max is the stronger choice if what you mainly want is a large quantity of one drink. Ninja describes the Max as producing up to 12 servings from a single vessel, while the Twist produces up to ten across its two vessels.

So I would frame the buying decision like this: would having two completely different frozen drinks ready at the same time be worth another £70 to £120 to you? If the answer is no, the cheaper machines are difficult to ignore.

Two flavours are more useful than the actual “twist”

The spiral, two-colour drink is the feature that looks best in demonstrations, but I would not spend £419.99 for that effect alone.

Independent testing points in the same direction. In Ideal Home's hands-on Ninja SLUSHi Twist review, reviewer Helen McCue found that producing the neat twisted effect takes some practice and that the two colours begin to merge after a few minutes. Her bigger takeaway was the usefulness of preparing two completely separate recipes simultaneously.

Serious Eats reached a similar conclusion in its hands-on review. Its tester found the two chambers particularly useful when serving alcoholic drinks alongside non-alcoholic alternatives for guests. That is more persuasive to me than the visual swirl because it solves a problem that a single-vessel machine cannot.

If you regularly host friends or family, being able to make a cocktail and mocktail together makes practical sense. The same applies if children want one flavour and adults another. You are not waiting for one batch to finish before starting the next.

If you live alone or as a couple and usually agree on one drink, it becomes much harder to justify paying the premium merely for the option to combine two colours in a glass.

Original, XL, Max or Twist: which SLUSHi makes more sense?

There is no single best Ninja SLUSHi because the models solve slightly different problems.

Choose the original SLUSHi if you want the lowest entry price

The FS301UK has a 1.9-litre maximum liquid fill, five presets and one vessel. Ninja says batches can take 15 to 60 minutes depending on ingredients, starting temperature and volume. At £299.99 when I checked, it saves £120 against the FS702 Twist.

For someone who mainly wants frozen cola, fruit juice, cocktails, frappés or milkshakes in one flavour at a time, that is a substantial difference for functionality that covers the core reason for buying a SLUSHi.

Choose the XL if you want more of one drink

The XL increases the maximum liquid fill to 2,840ml and adds SlushAssist, while remaining £90 below the FS702 Twist at the prices I found. Ninja says it can make around ten 260ml portions from one batch.

That makes it an interesting middle ground for families or gatherings where quantity matters more than having two different flavours available simultaneously.

Choose the Max for larger single-flavour batches

The Max has a 3,310ml maximum liquid fill and Ninja says it can produce up to 12 portions of 260ml. It also supports mixtures containing up to 20% alcohol by volume.

If your usual plan is one large batch of frozen margarita, daiquiri or fruit slush for everyone, the extra £70 for the Twist is difficult to justify unless you know you will use its second vessel.

Choose the Twist when variety matters

The Twist makes most sense when different people want different drinks. That is its clearest advantage over the rest of the range and, in my view, the feature strong enough to justify paying the premium.

Check which Ninja SLUSHi Twist you are buying

There is another detail that is easy to miss when comparing prices: not every UK SLUSHi Twist listing is the same model.

When I checked Ninja directly, the blue FS701UKBL was £409.99. Ninja describes this version as having fixed slanted spouts and a smaller drip tray intended for one glass.

The £419.99 FS702 version includes both straight and slanted interchangeable spouts, plus separate static and spinning drip-tray arrangements. That allows you to serve two drinks separately as well as create the combined Twist presentation.

It is only a £10 difference at Ninja's prices when checked, but this is exactly why I would compare model numbers rather than simply searching for the cheapest “Ninja SLUSHi Twist”. A retailer selling an FS701 cheaply is not necessarily offering the same package as an FS702.

Will you actually want a 15kg SLUSHi Twist on your worktop?

The £400-plus price is obvious. The physical size is easier to underestimate.

Ninja lists the FS702 at 44.4cm long, 30.3cm wide and 41.3cm high, weighing 15.37kg. That is not an appliance I would want to move in and out of a difficult cupboard every weekend. Measure the intended space before ordering and think about where it will live outside summer.

Cleaning is another consideration. There is a rinse cycle, but two vessels also mean two sets of components carrying sticky slush mixture. Ideal Home's tester found the clean-up particularly noticeable after milk-based recipes and described the vessels and augers as cumbersome to wash.

Experiences are not identical, though. The Serious Eats tester found the built-in rinse process surprisingly manageable during regular use. That difference is useful in itself: the rinse cycle may deal with much of the everyday residue, but creamy recipes and the removable parts can still mean more hands-on cleaning than the machine's automatic operation initially suggests.

None of that makes the machine bad. It does change the value calculation. An appliance can make excellent drinks and still be poor value if its size or washing-up means you stop using it after the first few weeks.

What drinks can you make in the Ninja SLUSHi Twist?

The Twist is broader than a traditional children's slush machine. Ninja lists examples including fizzy drinks, frappés, margaritas and milkshakes, with the machine freezing the liquid rather than relying on blended ice.

There are limits. According to the official FS702 specifications, recipes need sugar or a sugar alternative, and alcoholic drinks can contain up to 20% alcohol by volume. SlushAssist can also tell you when a mixture needs more water or sugar.

That means “pour in anything” is too simplistic. If zero-sugar drinks are important to you, or you want strong frozen cocktails, check Ninja's recipe guidance for the mixture you intend to use rather than assuming an ordinary drink recipe will freeze correctly unchanged.

Ninja says drinks can be ready in as little as 15 minutes, but also qualifies this by saying preparation can take 15 to 60 minutes depending on the recipe, amount of liquid and its starting temperature. Independent testing gives a useful real-world example: Ideal Home recorded fruit-juice batches at around 18 to 20 minutes, while its margarita took about 24 minutes.

If sugar-free drinks or stronger cocktails are one of your main reasons for spending more than £400 on the machine, I would check Ninja's recipe requirements before buying. Those ingredient limits matter more than the number of recipes shown in promotional photographs if they affect the drinks you actually want to make.

How often would you need to use it for the extra cost to feel worthwhile?

I do not think a “payback period” is particularly meaningful for a slush machine. Most people are buying one for convenience and enjoyment rather than because it generates a financial return.

A more useful calculation is what the £120 premium over the original SLUSHi costs each time you use the extra two-flavour capability.

• If you use it 6 times, the £120 premium works out at £20 per use.
• At 12 uses, it is £10 per use.
• At 24 uses, it falls to £5 per use.
• At 48 uses, it is £2.50 per use.

That is not the running cost of the machine; it is simply a way of putting the upgrade price into perspective. Ingredients and electricity are separate.

Someone who hosts twice a month and repeatedly uses both vessels may be perfectly comfortable with that premium. Someone imagining three barbecues and a birthday party before the machine goes into a cupboard is making a much more expensive purchase per occasion.

Can you get a discount on the Ninja SLUSHi Twist?

This is where I would be careful with headline Ninja promotions.

Our NinjaKitchen Voucher Codes and offers page currently features a saving of up to 30% off NinjaKitchen products. That can be useful if you are buying other eligible Ninja appliances or accessories, and it is worth checking the listed terms before placing a wider Ninja order.

However, I would not calculate 30% off the current SLUSHi Twist price. When I checked the official FS702 listing, SharkNinja stated clearly that the product is excluded from all promotion codes. At £419.99, a theoretical 30% reduction would be nearly £126, but there is no basis for presenting that saving as available on the Twist while the exclusion remains in place.

That does not mean there will never be a cheaper way to buy one. Retailer prices can differ, the machine could receive a direct price reduction, and the £409.99 FS701 was already £10 below the FS702 when I checked. What matters is comparing the final price for the exact model rather than seeing a general Ninja percentage and assuming it applies.

If a future offer on our NinjaKitchen page specifically includes the SLUSHi Twist, check the model, terms and final basket before paying. Until then, the safer approach is to treat the 30% offer as a wider NinjaKitchen saving rather than a confirmed Twist discount.

So, is the Ninja SLUSHi Twist worth buying?

Yes, for the right household — but I would buy it for the two independent vessels, not for the visual twist.

The strongest case is a home that regularly hosts. If you repeatedly need a cocktail and mocktail together, different flavours for children and adults, or simply two choices for guests, the Twist does something the single-vessel machines cannot. Both Ideal Home and Serious Eats found real value in being able to prepare two drinks simultaneously, although their experiences differed somewhat on the amount of cleaning involved.

I would save the money if you normally make one drink at a time. The original SLUSHi costs £120 less at the prices I checked, while the XL and Max provide greater single-vessel capacity for less money.

Storage should probably make the final decision if you are still unsure. A 15.37kg appliance occupying more than 40cm in two dimensions needs somewhere realistic to live. If you already know it will spend most of the year boxed away because getting it out is inconvenient, the cheaper SLUSHi — or no slush machine at all — may be the better use of your money.

Ninja SLUSHi Twist FAQs

Written by Julian House on 18th August 2026