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Both Ninja SLUSHi models turn juice, soda, coffee and cocktails into smooth slush without ice, using a built-in compressor and a spinning auger. Both keep drinks frozen for up to 12 hours and have dishwasher-safe parts.
The MAX is the bigger, newer and smarter version. Here is whether you actually need it.
Quick answer
Choose the SLUSHi if
you make slushies and frozen coffee for a family or a few friends and want a smaller, lighter machine.
Choose the SLUSHi MAX if
you host big parties, make frozen cocktails often, and want the machine to adjust its own settings.
Side-by-side comparison
| Feature | SLUSHi | SLUSHi MAX |
|---|---|---|
| Vessel size | 88 oz | 150 oz |
| Max liquid fill | 64 oz | 112 oz |
| Servings | 7+ | 12+ |
| Programs | 5 presets | 6 presets |
| Temperature control | Thicker or thinner than the preset | 15 temperature settings |
| Smart sensing | No | SlushAssist adjusts temperature automatically |
| Speed | 15-60 minutes per batch | Ninja says 2x faster than the FS301 |
| Alcohol | Standard Spiked Slush recipes | Supports higher-alcohol recipes |
| Keeps frozen | Up to 12 hours | Up to 12 hours |
| Weight | 24 lb | 32 lb |
Specifications are from the manufacturers' Amazon listings, checked in October 2026. Prices change often, so we do not list them here.
Capacity: 7 servings or 12
The original SLUSHi has an 88 oz vessel with a 64 oz maximum liquid fill, which Ninja rates at 7+ servings. That covers a family movie night or a small get-together.
The MAX nearly doubles that with a 150 oz vessel and a 112 oz maximum fill, rated at 12+ servings. If you regularly serve a crowd, you will refill it far less often.
Speed and smart features
Ninja says the MAX freezes drinks about twice as fast as the FS301. It also adds SlushAssist, which senses the ingredients and adjusts the temperature automatically, plus 15 temperature settings instead of a simple thicker-or-thinner control.
The original takes roughly 15 to 60 minutes per batch depending on ingredients and starting temperature. Starting with chilled liquid helps either machine.
Frozen cocktails
Both machines have a program for spiked slush. Ninja says the MAX can handle higher-alcohol recipes than the FS301, because alcohol makes a mix harder to freeze. If frozen margaritas are the main reason you are buying, that is a real advantage for the MAX.
With either model, drinks still need sugar or a recommended sugar substitute to slush properly.
Size and storage
The MAX weighs about 32 pounds, compared with 24 pounds for the original, and it takes up more counter space. If you plan to store the machine in a cupboard between uses, the smaller FS301 is much easier to live with.
Our verdict
For most households, the original Ninja SLUSHi is enough: it makes the same smooth slush, keeps it frozen for hours and is easier to store. The SLUSHi MAX is worth it if you host large groups, make frozen cocktails often, or want faster batches with automatic temperature control.
See the SLUSHi on Amazon See the SLUSHi MAX on Amazon
Want more detail? Read our full SLUSHi review, or see all five Kitchen Picks.
How we compare: we have not lab-tested these products ourselves. This comparison is based on manufacturer specifications, the Amazon listings and recurring themes in buyer reviews.
FAQ
Is the Ninja SLUSHi MAX worth the upgrade?
If you regularly serve more than 6 or 7 people or make a lot of frozen cocktails, yes. For occasional family use, the original SLUSHi is the better value.
Do both need sugar to work?
Yes. Sugar keeps the slush soft. For sugar-free drinks, Ninja recommends using one of its approved sugar substitutes.
Can I make alcoholic drinks in the original SLUSHi?
Yes, it has a Spiked Slush program. The MAX supports recipes with more alcohol.
How long do drinks stay frozen?
Both keep drinks at serving temperature for up to 12 hours.
Affiliate Disclosure: Smart Home Shields is a participant in the Amazon Services LLC Associates Program. As an Amazon Associate I earn from qualifying purchases. Product details and availability on Amazon change often, so check the current listing before you buy.
