Walking into a kitchen equipped with a Ninja Foodi XL Pro Air Fry Oven feels a bit like stepping into the cockpit of a high-performance jet. There are lights, digital readouts on the handle, and enough convection power to make a traditional oven look like a relic of the past. But when you’re staring at the Ninja Foodi DT251 and the Ninja DT201, the visual similarities are so striking that you might wonder if you’re just paying for a different model number.
I’ve spent the last several weeks putting both of these “XL Pro” machines through the ringer. I’ve roasted 12-pound turkeys, air-fried enough wings to feed a football team, and baked delicate cookies to see if their “True Surround Convection” claims actually hold water. While they share the same DNA, there is one specific feature in the DT251 that fundamentally changed how I approached Sunday dinner.
The Key Difference: Ninja Foodi DT251 vs DT201 Air Fryer Toaster Oven
The fundamental divide between these two models isn’t about power, size, or heating elements – it’s about precision and the Smart Cook System.
- The Foodi Smart Thermometer: The Ninja DT251 includes an integrated, leave-in digital thermometer. This allows the oven to monitor the internal temperature of your protein in real-time, automatically shutting off the heat once your steak hit “medium-rare” or your chicken reaches exactly 165°F.
- The Manual Approach: The Ninja DT201 is the “standard” version of the XL Pro. It has the exact same 1800-watt motor, the same 10 functions, and the same massive interior, but it lacks the built-in thermometer. You rely on traditional cook times and manual checking.
Essentially, the DT251 removes the “guesswork,” while the DT201 provides the raw power for those who are comfortable checking their own temps.
Comparison Table: Ninja Foodi DT251 vs DT201 Air Fryer Toaster Oven
| Feature | Ninja Foodi DT251 (Smart XL) | Ninja Foodi DT201 (XL Pro) |
| Integrated Thermometer | Yes (Smart Cook System) | No |
| Power | 1800 Watts | 1800 Watts |
| Functions | 10 (Air Fry, Roast, Whole Roast, etc.) | 10 (Same as DT251) |
| Convection Tech | True Surround Convection (10X Power) | True Surround Convection (10X Power) |
| Rack Levels | 2-Level Cooking | 2-Level Cooking |
| Dimensions | 17.09″D x 20.22″W x 13.34″H | 17.09″D x 20.22″W x 13.34″H |
| Preheat Time | 90 Seconds | 90 Seconds |
| Capacity | Fits 12lb Turkey / 2 12″ Pizzas | Fits 12lb Turkey / 2 12″ Pizzas |
| Included Trays | 2 Sheets, 2 Wire, 1 Fry, 1 Roast | 2 Sheets, 2 Wire, 1 Fry, 1 Roast |
| Buy On Amazon | Buy on Amazon | Buy on Amazon |
My Take: A Detailed Comparative Review
Design: A Handle That Does the Thinking
Both of these ovens feature what I consider to be one of the smartest design choices in modern appliances: the Digital Display Handle. Instead of leaning over to look at a cluttered control panel on the side of the machine, all the buttons and readouts are integrated into the handle itself.
When I first used the DT251, I noticed that when you select a function – say, “Whole Roast” – the handle actually illuminates the specific rack positions you should use for the best results. It sounds like a gimmick until you’re trying to figure out where to put a tray of veggies and a chicken at the same time. The finish on both is a high-end stainless steel, though the DT251 has a slightly more “premium” feel due to the extra port on the side where the thermometer plugs in.
- TRUE SURROUND CONVECTION: Up to 10X the convection power vs. a traditional full-size convection oven for faster, crispier, and juicy...
- 10 VERSATILE FUNCTIONS: Air Fry, Air Roast, Bake, Whole Roast, Broil, Toast, Bagel, Dehydrate, Reheat, and Pizza, all in one powerful...
- TRUE SURROUND CONVECTION: Up to 10X the convection power vs. a traditional full-size convection oven for faster, crispier, and juicy...
- 10-IN-1 VERSATILITY: Air Fry, Air Roast, Bake, Whole Roast, Broil, Toast, Bagel, Dehydrate, Reheat, and Pizza all in one powerful,...
Ease of Use: Rare, Medium, or Well Done?
This is where the DT251 pulled ahead in my daily routine. I decided to test a thick-cut New York Strip steak. With the DT251, I plugged in the thermometer, inserted it into the center of the meat, and selected “Medium Rare” on the handle. I didn’t have to set a timer. I just walked away and prepped a salad. The oven alerted me when the steak was done, and it was a perfect pink from edge to edge.
With the DT201, the experience is still excellent, but it’s more “active.” I had to look up the recommended time for a steak of that thickness, set the timer, and then use my own handheld thermometer to check it toward the end. If you’re a confident cook who stays in the kitchen, the DT201 is perfectly fine. But if you’re a multi-tasker (or prone to forgetting things in the oven), the DT251 is a lifesaver.
Functions: True Surround Convection in Action
I am genuinely impressed by the “True Surround Convection” on both models. Ninja claims it has 10X the convection power of a traditional oven, and while I didn’t get out a lab-grade anemometer, I can tell you the air moves fast.
I did a “Two-Level Meal” test in both: 12 chicken wings on the top air-fry basket and a tray of potato wedges on the bottom wire rack. In most toaster ovens, the bottom rack stays soggy. In both the DT251 and DT201, the airflow was strong enough that the potatoes actually crisped up without me having to flip them or swap the rack positions halfway through. Both machines handle 10 functions flawlessly – from “Dehydrate” for my jerky experiments to “Pizza” mode, which actually gets the bottom of the crust crispy instead of chewy.
Maintenance: The Reality of “XL” Cooking
Cleaning an oven this powerful takes a bit of effort. Because the air moves so fast, grease splatters are inevitable. Both models feature a removable crumb tray, which is a must-have. I found that the stainless steel exterior wipes down easily, but you’ll want to be proactive with the interior.
The DT251 requires one extra bit of care: the thermometer. It’s a high-precision instrument, so you can’t just toss it in the dishwasher. You have to wipe it down by hand. However, the sheet pans and the air fry basket are surprisingly non-stick. After a messy roast, I let them soak for ten minutes, and the charred bits slid right off.
Ninja Foodi DT251 (Smart XL) Air Fryer Toaster Oven
- TRUE SURROUND CONVECTION: Up to 10X the convection power vs. a traditional full-size convection oven for faster, crispier, and juicy...
- 10 VERSATILE FUNCTIONS: Air Fry, Air Roast, Bake, Whole Roast, Broil, Toast, Bagel, Dehydrate, Reheat, and Pizza, all in one powerful...
Pros:
- Precision Cooking: The Smart Thermometer ensures you never overcook a roast or steak again.
- Massive Capacity: Easily handles two-level cooking for large families or meal prepping.
- Speed: The 90-second preheat is legitimate; it’s ready to cook almost as soon as you are.
- Instructional UI: The handle tells you exactly where to put your racks.
Cons:
- Price: Usually carries a $30-$50 premium over the DT201.
- Complexity: One more component (the thermometer) to store and clean.
Ninja Foodi DT201 (XL Pro) Air Fryer Toaster Oven
- TRUE SURROUND CONVECTION: Up to 10X the convection power vs. a traditional full-size convection oven for faster, crispier, and juicy...
- 10-IN-1 VERSATILITY: Air Fry, Air Roast, Bake, Whole Roast, Broil, Toast, Bagel, Dehydrate, Reheat, and Pizza all in one powerful,...
Pros:
- Value: You get the exact same heating technology and power as the flagship model for less money.
- Identical Performance: In terms of air fry crispiness and baking evenness, it is identical to the DT251.
- Durability: Fewer electronic components to potentially fail over long-term use.
Cons:
- Manual Monitoring: Requires you to use your own thermometer or rely on timers.
- Easy to Overcook: Without the auto-shutoff feature of the Smart System, it’s easier to dry out a chicken if you aren’t paying attention.
The Verdict: Which Ninja Should You Invite Into Your Kitchen?
After weeks of roasting and frying, my conclusion is that these are both top-tier appliances, but they serve different personality types.
I recommend the Ninja Foodi DT201 if:
You are a “hands-on” cook. If you already own a good instant-read thermometer and you enjoy checking on your food, there is no reason to spend the extra money on the DT251. You are getting the same 1800 watts of power and the same incredible convection airflow. It’s the “Smart Value” choice.
I recommend the Ninja Foodi DT251 if:
You want to “Set it and Forget it.” If you’ve ever ruined a $20 roast by leaving it in five minutes too long, the Smart Thermometer will pay for itself within the first three uses. It is perfect for busy parents or anyone who wants “Chef-level” results without having to hover over the countertop.
My Take: I personally prefer the DT251. The peace of mind that comes with the oven automatically stopping when the meat is perfectly cooked is worth every extra penny. It turns a “toaster oven” into a sophisticated cooking robot.
Frequently Asked Questions
Can I fit a whole turkey in these ovens?
Yes, you can fit up to a 12-lb turkey. I recommend using the “Whole Roast” function and placing the bird on the lowest rack position. Because of the “True Surround Convection,” it cooks significantly faster than a traditional oven – usually about 30% faster.
Does the thermometer work for baking?
The Smart Thermometer is designed for internal temperatures of meat. For baking cakes or cookies, you would still use the traditional “Bake” function with a standard timer. However, the oven’s even heat distribution means you won’t have to rotate your cookie sheets.
Is the air fry basket dishwasher safe?
Yes, Ninja lists the air fry basket and sheet pans as dishwasher safe. However, to extend the life of the non-stick coating, I generally recommend hand-washing them with a soft sponge.
How loud is the fan?
Because it is 10X more powerful than standard convection, you will definitely hear the fan, especially in “Air Fry” mode. It sounds roughly like a high-end range hood on its medium setting. It’s powerful, but not “leave the room” loud.
Can I buy the thermometer later for the DT201?
No. The DT251 has a specific internal motherboard and a physical port on the side of the machine to accommodate the Smart Thermometer. The DT201 does not have the hardware to support the “Smart Cook System.”
