Ninja DCT451 vs DCT401 Smart Double Oven Comparison: Which One Should You Buy?
Choosing the right smart oven can elevate your cooking experience, and Ninja’s DCT451 and DCT401 are two of the most advanced countertop double ovens available in 2025. Both models come packed with Ninja’s cutting-edge features, including dual oven zones, smart finish technology, and versatile cooking modes-making them a favorite among home chefs and busy households alike.
In this detailed comparison, we’ll explore the key differences and similarities between the Ninja DCT451 and DCT401 smart double ovens, covering everything from design and cooking performance to smart features and overall value. Whether you’re upgrading your kitchen or shopping for your first smart oven, this guide will help you decide which model better fits your lifestyle and cooking needs.
Let’s dive into the features, performance, and everything else you need to know before choosing between the Ninja DCT451 and DCT401.
Ninja DCT451 vs DCT401 Side-by-Side Comparison Chart
| Feature | Ninja DCT451 | Ninja DCT401 |
|---|---|---|
| Product Dimensions | 21.5x16.4x13.3 Inches | 21.5x16.4x13.3 Inches |
| Material | Stainless-Steel | Stainless-Steel |
| Weight | 31 Pounds | 31 Pounds |
| Color | Stainless Steel and Black | Stainless Steel and Black |
| Cooking Functions | 12 Cooking Functions: Top Rapid Oven Functions: Toast, Bagel, Bake, Broil, Reheat, Keep Warm Bottom Convection & Air Fry Oven Functions: Air Fry, Air Roast, Convection Bake, Whole Roast, Pizza, Dehydrate | 12 Cooking Functions: Top Rapid Oven Functions: Toast, Bagel, Bake, Broil, Reheat, Keep Warm Bottom Convection & Air Fry Oven Functions: Air Fry, Air Roast, Convection Bake, Whole Roast, Pizza, Dehydrate |
| Size and Capacity | 6 lbs Wings & 12-inch Pizza at the Same Time, Enough to Feed 8 people | 6 lbs Wings & 12-inch Pizza at the Same Time, Enough to Feed 8 people |
| Special Feature | FlexDoor: Creates Two Separate Ovens (Top & Bottom) | FlexDoor: Creates Two Separate Ovens (Top & Bottom) |
| Smart Finish: Finish cooking two different meals at the same time for greater convenience. | Smart Finish: Finish cooking two different meals at the same time for greater convenience. | |
| Rack Positions | 3 Rack Positions | 3 Rack Positions |
| Control Type | One Touch Buttons, Dial & Display | One Touch Buttons, Dial & Display |
| Operation Type | Automatic | Automatic |
| Smart Thermometer | Yes | No |
| Doneness Levels | Rare, Med Rare, Med, Med Well, Well | No |
| Max Temperature Range | 450F Max | 450F Max |
| Wattage | 1800W | 1800W |
| Warranty | One Year Limited Warranty | One Year Limited Warranty |
| User Rating | 5/5 Star | 5/5 Star |
| Check Latest Price | Buy on Amazon | Buy on Amazon |
DCT451 vs DCT401: What Sets These Ninja Smart Ovens Apart
When comparing the Ninja DCT451 and DCT401 Smart Double Ovens, a few standout features set these two models apart. These distinctions can help guide your decision based on your cooking style and preferences.
- FLEXDOOR: Creates two separate ovens. Access just the top for quick meals and snacks, or open the full door so you can cook 2 meals, 2 ways on the top and bottom.
- FLAVORSEAL TECHNOLOGY: Two separate ovens prevents smells from crossing between ovens, so your flavors stay separate.
1. Built-In Smart Thermometer
The Ninja DCT451 is equipped with a Smart Thermometer, allowing users to track internal food temperatures in real time. This feature ensures precise cooking, especially for meats and delicate dishes. The DCT401, in contrast, does not include a built-in thermometer and relies solely on manual temperature settings.
2. Doneness Level Settings
Another feature exclusive to the DCT451 is the ability to choose from five doneness levels: Rare, Medium Rare, Medium, Medium Well, and Well Done. This adds an extra layer of control, making it easier to achieve consistent results based on your preferred level of doneness. The DCT401 does not offer this functionality.
Similarities Between Ninja DCT451 and DCT401 Smart Double Ovens
While the Ninja DCT451 and DCT401 have a few unique distinctions, they also share many core features that make both models highly functional and versatile. Here is a breakdown of their key similarities:
1. Design and Dimensions
Both models feature a sleek, modern design with stainless steel and black finishes. Their identical dimensions – 21.5 x 16.4 x 13.3 inches – and equal weight of 31 pounds make them suitable for most countertops while complementing a wide range of kitchen styles.
2. Cooking Functions
Each oven includes a total of 12 cooking functions, offering impressive versatility. The top rapid oven supports baking, broiling, reheating, toasting, warming, and bagel settings. The bottom oven is equipped with air fry, convection bake, pizza, air roast, whole roast, and dehydrate functions. Together, these features allow for a wide range of meal preparation options.
3. Cooking Capacity
Both ovens can handle generous portions. Whether you’re cooking a 12-inch pizza or up to 6 pounds of chicken wings, these models are ideal for families or small gatherings, comfortably serving up to eight people.
4. Advanced Features
The FlexDoor design is present in both models, allowing you to separate the top and bottom ovens for independent cooking zones. This is especially helpful when preparing two different dishes simultaneously. Additionally, both models include Smart Finish technology, which synchronizes cooking times so that different foods are ready to serve at the same moment.
5. Control System
Each unit features intuitive controls, including one-touch buttons, a central dial, and a digital display. This setup simplifies temperature adjustments, cooking mode selections, and timer settings, making the overall user experience smooth and efficient.
6. Included Accessories
Both the DCT451 and DCT401 come with a complete set of accessories designed to maximize convenience. These include two sheet pans, two wire racks, an air fry basket, a roast tray, and a crumb tray. Additionally, the Smart Thermometer is listed with both models, though it’s only functional with the DCT451.
Ninja DCT451 Smart Double Oven Review
The Ninja DCT451 Smart Double Oven stands out as a multifunctional appliance built for modern kitchens. After testing its capabilities, we found it to be both reliable and efficient for a wide variety of cooking tasks. Measuring 21.5 x 16.4 x 13.3 inches and weighing 31 pounds, this oven features a durable stainless steel build with a sleek black finish that blends easily into most kitchen setups.
A major highlight of the DCT451 is its 12-in-1 cooking functionality. The top rapid oven supports baking, broiling, toasting, and more, while the bottom oven includes air fry, convection bake, whole roast, pizza, and dehydrate modes. With enough space to cook a 12-inch pizza and 6 pounds of wings simultaneously, it’s ideal for large families or gatherings.
- FLEXDOOR: Creates two separate ovens. Access just the top for quick meals and snacks, or open the full door so you can cook 2 meals, 2 ways on the top and bottom.
- FLAVORSEAL TECHNOLOGY: Two separate ovens prevents smells from crossing between ovens, so your flavors stay separate.
What sets this model apart is the FlexDoor design, which separates the two ovens for cooking different dishes at the same time. It also features Smart Finish technology, allowing both meals to finish simultaneously. The built-in Smart Thermometer ensures precision cooking, especially for meats, and offers five doneness levels from rare to well done.
User-friendly controls include a combination of one-touch buttons, a control dial, and a digital display. The oven’s three rack positions, 450°F temperature range, and 1800-watt power output offer great flexibility and fast performance.
Included accessories are generous: two sheet pans, two wire racks, an air fry basket, roast tray, crumb tray, and a smart thermometer. Plus, a one-year limited warranty offers added peace of mind.
Final Thoughts
With its dual-oven convenience, smart cooking features, and solid performance, the Ninja DCT451 is a top choice for home cooks looking to simplify meal prep. Backed by strong user reviews and a 5-star rating, it delivers excellent value for both everyday use and special occasions.
Pros 
- FlexDoor creates two separate ovens
- 12 cooking functions for versatile cooking
- Smart Finish feature for cooking different ingredients
- Smart thermometer for monitoring food temperature
- Accessories included: sheet pans, wire racks, air fry basket
Cons 
- Learning curve
- May take up counter space
- May be too large for small kitchens
Conclusion: Ninja DCT451 vs DCT401 Smart Oven
After a detailed comparison, it’s clear that the Ninja DCT451 Smart Double Oven offers more advanced features and greater flexibility than the DCT401. While both models deliver strong performance, the DCT451 stands out with its 12 versatile cooking functions, FlexDoor design, and Smart Finish technology, making it easier to prepare multiple dishes at once.
The inclusion of a smart thermometer provides added precision, especially for meats and roasts, while its spacious interior makes it ideal for families or those who entertain often. Built with durable stainless steel and packed with thoughtful features, the DCT451 is designed for convenience and efficiency.
If you’re deciding between the Ninja DCT451 and DCT401, the DCT451 is the better investment for anyone seeking a smart, multifunctional oven that can truly do it all.
