Keurig Slim vs Mini: Which One Is Worth Your Counter Space?

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This is our comparison of the Keurig Slim vs Mini.

Our pick is the Keurig K-Slim, because it’s still a low-budget option (like the Mini), but it comes with a bunch of additional features making it better value for money.

Keurig K- Slim Single Serve K-Cup Pod Coffee Maker, Multistream Technology, Black

Keurig K-Slim

Keurig K-Mini Single Serve Coffee Maker, Black

Keurig K-Mini




Ease of use









Value for money



Looking for more details?

No problem, we have you covered.

First, we’ll look at both Keurig models one at a time. And then we’ll compare them using our five criteria: Performance, Ease of use, Design, Features, and Value for money.

Let’s start with the Keurig K-Slim.

Keurig K-Slim: At a Glance

The Keurig K-Slim Single Serve coffee maker is a compact and convenient coffee machine that can brew 8, 10, or 12 oz. cups of coffee in minutes.

It has a removable 46 oz. water reservoir that lets you brew up to 4 cups before refilling.

The K-Slim also features multistream technology that extracts full flavor and aroma from the coffee pods. Which is pretty cool if you like that intense coffee smell wafting through your kitchen first thing in the morning.

The machine has an auto-off feature that saves energy and a removable drip tray that accommodates travel mugs.

Finally, the Keurig K-Slim is less than 5 inches wide and fits neatly on any countertop.

Keurig K-Mini: At a Glance

As we said in our Keurig K-Mini review:

The Keurig K Mini boasts convenient features, such as its space-saving design, coffee pod compatibility, user-friendly operation, and easy cleaning. It also offers a good balance of energy efficiency and brewing power.”

This coffee maker is a compact and portable coffee maker designed for convenience and simplicity. Ideal for small spaces, it offers easy operation with a one-button brewing system and is compatible with all K-Cup pods.

Features include a small footprint, fast brewing time, and energy-saving auto-off function.

But it lacks advanced options like temperature control and has a small water reservoir. It’s noisy during operation but offers good value for money, making it suitable for students, beginners, or casual coffee drinkers.

Keurig Slim vs Mini: A Comparison

Here are the key differences between the two.

  • Brewing: K-Slim has 5 needles on top for multi-brew technology, K-Mini has 1 needle on top and bottom. But both use K-cups.
  • Water reservoir: K-Slim has a built-in reservoir you fill up. With the K-Mini you need to fill the water tank each time you brew.
  • Controls: K-Slim has buttons to select 8, 10, or 12 oz brew size. K-Mini has a dial to select 6-12 oz and a single brew button.
  • Size/Portability: K-Mini is more compact in size with cord storage, better for travel. K-Slim is larger.
  • Brewing speed: K-Slim can brew cups back-to-back faster. K-Mini you have to refill the water tank each time.
  • Brew quality: K-Slim’s multi-brew gives slightly smoother coffee.
  • Maintenance: K-Slim needs occasional water rinses to clean needles. Both have descale alerts.

As always, we review coffee makers based on five specific criteria:

  • Performance
  • Ease of use
  • Design
  • Features
  • Value for money

Let’s start with performance.


In terms of performance, the K-Slim uses Multi-Brew Technology with five needles on top for a potentially smoother brew and can quickly make back-to-back cups thanks to its pre-heated water reservoir.

On the other hand, the K-Mini, with a single needle on top and bottom, requires heating time for each brew, making it slower for multiple cups.

Winner: Keurig K-Slim

Ease of use

The K-Slim stands out with its built-in water reservoir that allows multiple brews without refilling and offers simple selection buttons for cup sizes and a descaling indicator.

The K-Mini demands manual water addition for each brew but gives users precise control over water quantity, catering to individual preferences.

Winner: It’s a tie!


The K-Slim is slightly larger, features a removable water reservoir with a handle for easy refilling, and accommodates travel mugs up to 7 inches tall with the drip tray removed.

The K-Mini’s compact and portable design includes cord storage, making it suitable for travel and fitting better in small spaces.

Winner: Keurig K-Slim


Feature-wise, the K-Slim is equipped with advanced technology, including a descaling light and an add water light to prevent dry running, offering a more sophisticated brewing experience.

The K-Mini focuses on simplicity with a single brew button, emphasizing basic functionality.

Winner: Keurig K-Slim

Value for money

The K-Slim provides more convenience and brewing options, potentially offering better value for frequent users or those who appreciate a smoother coffee.

The K-Mini is ideal for individuals prioritizing space efficiency, simplicity, and portability, potentially offering better value for occasional users or those with limited space.

Winner: Keurig K-Slim

Overall Winner

Our overall winner is the Keurig K-Slim. Here’s why:

Brew sizes

The K-Slim offers more versatility in brew sizes, with options for 8, 10, or 12 oz cups. The K-Mini only brews 6-12 oz cups, so you have less control over cup size. If you like brewing larger cups of coffee, the K-Slim is likely the better choice.

Water reservoir

The K-Slim has a large, detachable 48oz water reservoir that allows you to brew multiple cups before refilling. The K-Mini requires you to add water manually each time you brew, which is less convenient but can be useful for single cups. The K-Slim is better for households that consume a lot of coffee.

Brewing speed

Thanks to its pre-heated water reservoir, the K-Slim can brew cups back-to-back very quickly. The K-Mini needs time to reheat in between brew cycles, so brewing multiple cups takes longer. The K-Slim is preferable if you’re making coffee for multiple people.

How to Choose: The Keurig Slim or Mini?

keurig slim vs mini

Here’s the thing: Both the Keurig K-Slim and the Keurig K-Mini are great single-serve coffee makers. And they’re both great for casual coffee drinkers or beginners.

So our advice is don’t spend too much time thinking about it. We recommend the K-Slim because of the extra features (built-in water reservoir, etc.). But it’s a little more expensive.

Bottom line: The K-Slim is better suited for frequent coffee drinking and brewing larger cups, while the compact size and single-serve abilities of the K-Mini make it ideal for portability and small spaces. Consider your own brewing preferences and needs to decide which model best fits your lifestyle.

Learn how to use a Keurig coffee maker.

Time to Decide…

And that wraps up our Keurig Slim vs Mini comparison.

The K-Slim stands out with its added features, a built-in water reservoir, and faster brewing times. It’s a little bit more expensive than the Mini, but we think you’re getting better value for your money.

That being said, both machines are terrific for beginners or for those on a budget.  

So if you want to buy the Mini instead, don’t worry. You’re still getting a great coffee maker. And don’t forget… a coffee machine like a Keurig is just one way to make coffee. Check out our article on how to use a French press.

On the other hand, if you’re looking for a Keurig coffee maker that’s over $100 (but still great value for money), check out our comparison review of the Keurig Duo vs Duo Plus.

Now that you know the differences, it’s time to decide which is right for you. 

Click the buttons below to buy the Keurig K-Slim or Mini on Amazon today!

Keurig Slim vs Mini: FAQ

What is the difference between a mini and a slim Keurig?

The main differences between a Keurig Mini and a Keurig Slim are in their water reservoir capacities and size. The K-Slim has a larger water reservoir allowing for multiple cups without refilling and offers more brew size options, while the K-Mini is more compact and requires manual water addition for each brew, making it better suited for small spaces and portability.

Is the Keurig Mini worth it?

The K-Mini appeals to those needing a compact, straightforward, and travel-friendly coffee maker. If that’s you, then it’s worth it.

Does the Keurig K-Slim use the same pods?

Yes, the K-Slim uses the same branded K-Cup pods as other Keurig makers.

What is the difference between K-Mini and K-Mini Plus?

The main difference between the Keurig K-Mini and the Keurig K-Mini Plus is that the Plus model has a pod storage unit that can hold up to 9 K-Cup pods and a strong brew option that can brew a more intense cup. The Plus model also has a removable one cup reservoir that makes it easier to clean and fill.

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My name is Colm O’Regan. I’m a self-confessed coffee nut who probably drinks a little too much of the stuff every morning. And I founded Moderno Coffee with the goal of providing the best coffee guides and reviews on the web.