The Dualit Design Series 4 Slice is a high-end stainless-steel toaster. This four-slot toaster is part of Dualit's 'Design' product line, which also includes a 2-slice toaster and a kettle. These products have removable panels that can be swapped for panels in a different color, which Dualit sells separately, so you can change your toaster's look when you redesign your kitchen or want a change. Aside from Bagel and Defrost settings and a dial for shade selection, it has a 'Peek & Pop' feature that lets you lift the slots to check on your toast without interrupting the cycle.
Our Verdict
The Dualit Design Series 4 Slice delivers good performance for everyday use. With four roomy slots, it offers plenty of capacity for various baked goods, including taller slices of homemade bread and chunky bagels. While this model doesn't toast very evenly, leaving the corners of each slice less toasted than the rest, it works quickly, so your toast stays soft in the middle. It offers a few extra features: 'Peek & Pop' lets you check on your toast mid-cycle, frozen mode adds a little extra toasting time, and bagel mode disables one set of heating elements for one-sided toasting. Throughout the toasting process, the crumb trays catch most of the crumbs and seeds that dislodge from your baked goods, so you don't have to clean your counter each time you use the toaster.
Toasts quickly, ensuring food doesn't dry out.
Includes one-sided toasting.
Requires infrequent cleaning of your counters.
Doesn't toast very evenly.
Inconsistent performance between slots.
The Dualit Design Series 4 Slice is decent for toast. It toasts quickly, so your toast doesn't come out too dry, but it doesn't toast very evenly. While it does a decent job browning the surface of each slice, it leaves the corners pale and delivers different results depending on which slot you use.
Toasts quickly, ensuring food doesn't dry out.
Doesn't toast very evenly.
Inconsistent performance between slots.
The Dualit Design Series 4 Slice is a very good choice for bagels. Using the bagel button enables one-sided toasting, so you can toast the inside while leaving the outside mostly soft, though it still toasts a bit. This model works quickly, so your bagel doesn't dry out before reaching a golden-brown color, but it doesn't toast particularly evenly, so it comes out somewhat patchy. The slots don't perform consistently either, so you get different results with each.
Toasts quickly, ensuring food doesn't dry out.
Includes one-sided toasting.
Doesn't toast very evenly.
Inconsistent performance between slots.
The Dualit Design Series 4 Slice is good at managing crumbs. It has two crumb trays that catch most crumbs and seeds each time you toast, so you don't have to clean your counters as often.
Requires infrequent cleaning of your counters.
The Dualit Design Series 4 Slice is quite large, which makes sense given its capacity. It takes up a lot of space on your kitchen counter, and while it fits in an average-sized cupboard, it's a hassle to move back and forth.
Bulky design.
Performance Usages
Changelog
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Updated Jul 13, 2026:
We've updated the text in this review to match the changes in Test Bench 1.2.
- Updated Jul 13, 2026: We've updated this review to Test Bench 1.2, which adds three new test boxes: Size, One-Sided Toasting, and Moisture Retention. We also updated the Usage and Performance Usages at the top of the review to reflect the new tests and provide clearer buying guidance for users. You can read more in the Changelog.
- Updated Apr 24, 2026: We've updated this review to Test Bench 1.1, which includes several new tests, including Capacity, Features, Crumb Management, and Toasting Speed. You can read more in the Changelog.
- Updated Mar 19, 2026: Review published.
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Differences Between Sizes And Variants
The Dualit Design Series 4 Slice, also called the Dualit Architect Series 4 Slice depending on where you purchase it, is available with a Black or Stainless Steel body. Both models come with stainless steel side panels, but you can buy panels from Dualit in various other colors if you want a different look. Here's our model's label.
If you encounter another variant, let us know in the comments, and we'll update our review.
Popular Toaster Comparisons
The Dualit Design Series 4 Slice is a high-end toaster with four slots. The body is made of stainless steel and plastic, and like other models in the 'Design' (or 'Architect') lineup, the side panels are removable so you can change its look. However, compared to Dualit's Classic or Classic New Gen models, like the Dualit 2 Slice NewGen Classic, there are fewer replacement parts available, so it's not as easy to repair at home if a part fails. It's equipped with 'Perfect Toast Technology,' which adjusts the toasting time based on the toaster's temperature. This is meant to help it produce more consistent results, but in our testing, we found that you still need to adjust the shade setting to get the same results batch after batch. Unlike some other high-end options, like the Breville Die-Cast 4-Slice Smart Toaster, it doesn't have cycle countdown indicators, but the 'Peep & Pop' feature lets you check on your toast without canceling the cycle.
It toasts fairly evenly, but many 4-slot toasters do a better job, like the much cheaper Black+Decker 4-Slice Toaster TR4900SSD. You can purchase a 'Sandwich Cage' meant for making grilled sandwiches, but Dualit also recommends it for evenly toasting smaller items like English muffins.
If you want to know what toasters we recommend, check out our picks for the best 2-slot toasters, the best 4-slot toasters, or the best toaster brands.
If you're looking for a 4-slot toaster and trying to decide between the Breville Die-Cast 4-Slice Smart Toaster and the Dualit Design Series 4 Slice, go for the Breville. Although it takes longer to toast and dries your bread a little in the process, it toasts much more evenly than the Dualit, leaving each slice evenly browned on both sides. It's a better choice for bagels, too, since it toasts only the cut side more effectively, leaving the outside of your bagel soft. The Breville also includes a cycle countdown indicator, so you know approximately when it's time to start buttering. And while it leaves a few more crumbs behind than the Dualit, the crumb tray does a decent job catching them.
The Dualit Design Series 4 Slice and Black+Decker 4-Slice TR4900SSD have different strengths. The Dualit is a better choice for bagels, since it can toast the inside of a bagel while leaving the outside soft. It also toasts faster and retains moisture better, so your baked goods stay soft in the center. The Black+Decker, on the other hand, toasts much more evenly, so each slice of bread you toast comes out uniformly browned on both sides.
The Smeg 4-Slice TSF02 and Dualit Design Series 4 Slice have different strengths. The Smeg is a long-slot toaster, making it a better choice if you prefer longer slices of homemade or bakery bread. It toasts much more evenly, so each slice comes out consistently browned on both sides. The Dualit's 4-Slot design is better suited to larger households, as it has two sets of slots that operate independently, allowing two people to use the toaster at the same time. It finishes toasting faster, and dries out your toast less in the process. The Dualit also leaves fewer crumbs behind after toasting.
The Dualit 2 Slice NewGen Classic and the Dualit Design Series 4 Slice both offer good performance, but the NewGen Classic comes out ahead overall. While neither option leaves the surface of each slice of toast evenly browned, the NewGen Classic leaves both sides more similarly toasted and provides more consistent browning levels across each slot, making it a better option for toast overall. It's better for bagels, too, since it delivers more reliable one-sided toasting. Using the bagel setting gives you bagels, buns, or English muffins that are fully toasted on the inside and soft on the outside. The NewGen Classic is also smaller, making it easier to fit on crowded counters and store while not in use.
Test Results
