Keurig K-Express vs K-Slim: What to Consider Before Buying
Naila Syifa
Updated April 2025
The K-Express and K-Slim both deliver the signature Keurig brewing experience, but they come at different price points that reflect their feature sets and capabilities. The K-Express retails at USD 89.99, while the K-Slim costs a bit higher at USD 129.99.
With this price gap that reaches about $40, which offers better value for your money? I will compare these two models across several key consideration aspects to help you determine which coffee maker best suits your needs and budget.
Key Takeaways
K-Slim stands out with MultiStream technology for richer flavor and aroma, but the K-Express is not losing out with a Strong brew setting that the K-Slim lacks. Design-wise, the K-Express is more compact, but the K-Slim has a more user-friendly control layout.
Keurig K-Express
Minimalist Coffee Maker
✓ 3 Cup Sizes
✓ 42 oz. Reservoir
✓ Strong Button
✓ Travel Mug-Friendly
Keurig K-Slim
Small but Mighty
✓ 3 Cup Sizes
✓ 46 oz. Reservoir
✓ MultiStream Technology
✓ Travel Mug-Friendly
Design
Keurig K-Slim
While the Keurig K-Slim is often advertised to be a space-saving, slim coffee maker that fits easily into tight spaces, the K-Express is actually more compact overall.
These are the official dimensions I took from Keurig's website.
Keurig K-Express: 12.6” H x 4.5” W x 12.8”D
Keurig K-Slim: 12.1” H x 4.7” W x 15.2” D
As we can see, both coffee makers share a similar 12-inch height and a slim profile of less than 5 inches in width, but the K-Slim is considerably longer from front to back, taking up more counter depth.
The Keurig K-Slim is also heavier at 6.22 pounds compared to the K-Express's 4.29 pounds. These obviously may not matter much as you won't be moving your coffee maker around frequently, but it supports the fact that the K-Express is truly the more compact option between the two.
Despite their compact size, both machines can accommodate travel mugs up to 7 inches tall when the drip tray is removed.
Keurig K-Express
Another design difference between the two is the color availability. The K-Express comes in more color options that make it easier to match with different kitchen aesthetics, but the K-Slim is also appealing if you prefer a classic aesthetic.
These are color options available for each model, though they can vary by retailer and may change over time.
Keurig K-Express: Black, Warm Stone, Mint, Island Berry, Lavender
Keurig K-Slim: Black, White, Scarlett Red
Controls
Keurig K-Express
Both coffee makers use physical buttons for control, but the K-Slim has them on top while the K-Express features them on the front corner.
I personally prefer the buttons on top as it's easier to see and press them when standing over the machine. Buttons on the K-Express can be a bit awkward to access, especially when my mug's handle gets in the way.
So, the K-Slim seems to be more ergonomically designed from a control perspective, at least to me personally.
However, the K-Express has an edge with an extra button that allows you to select a stronger brew – the Strong button. The K-Slim lacks this feature and only offers regular brew strength with no customization options.
Brewing Features
Keurig K-Slim
Keurig K-Express and K-Slim both support 3 cup sizes: 8, 10, and 12 oz. That gives you flexibility to choose between a stronger, more concentrated cup or a larger, milder brew.
Both also have decent water reservoir capacity despite their compact size, which allows for multiple brews in one fill. The difference is that the K-Express features a 42 oz water reservoir, while the K-Slim offers a slightly larger 46 oz tank.
On the specs sheet, the K-Slim seems to have the upper hand. But in reality, it is not such a big advantage. Keurig mentions that both the 42 oz and 46 oz water reservoirs can equally make up to 4 cups of 8 oz size before needing a refill, so the 4 oz difference doesn't seem like a big deal.
Instead, the more significant advantage that the K-Slim has over the K-Express is the MultiStream technology.
This technology helps the machine to extract more flavor and aroma from the K-Cup pod by using five needles instead of one to saturate the coffee grounds more evenly. The result? A richer, more flavorful cup of coffee.
Keurig K-Express vs K-Slim
Final Thoughts
Keurig K-Express
Being considerably more expensive, I expected the K-Slim to be superior in all aspects, but it's not quite the case.
The K-Slim indeed offers better extraction with its MultiStream technology and a more user-friendly button layout, but the K-Express counters with a Strong brew option and a more compact footprint at a lower price point.
Therefore, if overall value is your main concern, the K-Express is the better choice. However, if you're willing to pay a premium for the MultiStream technology, then the K-Slim may be worth the extra investment.
If you'd like to read more about Coffee Makers, check out our other relevant guides here:
Keurig K-Supreme vs K-Supreme Plus
Keurig K-Mini vs K-Express
Author
Naila Syifa
Naila has spent over 1,800 hours researching, exploring, and writing about the latest trends in technology, consumer electronics, and smart home gadgets.
Don't miss out on tech
Subscribe to our newsletter to stay up to date on the latest tech trends and guides on the best gadgets around.
