There is a specific kind of frustration that comes with craving a charred, juicy porterhouse in the middle of a February rainstorm. I’ve spent the better part of this month turning my kitchen counter into a test lab for two of the biggest names in the “indoor BBQ” game: the PowerXL Smokeless Electric Grill and the Ninja Foodi Smart XL Air Fryer Grill.
On the surface, they both promise to eliminate the charcoal-stained apron and the frantic fanning of the smoke detector. But after searing dozens of burgers and air-frying enough wings to feed a small stadium, I’ve realized these two machines are built for very different types of cooks. One is a flat-top specialist that aims to mimic the horizontal space of a backyard grill, while the other is a high-tech, vertical “everything machine” that wants to replace your oven, air fryer, and grill all at once. If you’re trying to decide which one deserves that precious 18 inches of countertop real estate, my grease-splattered notes from the last thirty days are about to make your choice a whole lot easier.
The Key Difference: Pure Grilling vs. Multi-Function Mastery
The fundamental difference between the PowerXL Smokeless Grill and the Ninja Foodi Smart XL is their core technology and versatility. The PowerXL is a specialized horizontal smokeless grill that uses a Turbo Extraction Fan to vacuum up smoke and a Cerami-Tech non-stick surface to mimic a traditional griddle or BBQ grate.
The Ninja Foodi Smart XL, conversely, is a 6-in-1 multi-cooker that uses 500°F Cyclonic Air technology. While the PowerXL excels at surface area and “open-lid” grilling, the Ninja Foodi integrates a Smart Thermometer and functions as an air fryer, roaster, and baker, essentially acting as a high-powered convection oven designed to grill.
Comparison Table: PowerXL vs. Ninja Foodi Smart XL
| Feature | PowerXL Smokeless Grill | Ninja Foodi Smart XL (FG551) |
| Primary Technology | Infrared/Conduction + Fan | Cyclonic Air (Convection) |
| Max Temperature | 450°F | 500°F |
| Functions | Grill, Griddle | Grill, Air Fry, Roast, Bake, Broil, Dehydrate |
| Smart Features | LED Temperature Control | Smart Thermometer (9 Doneness Levels) |
| Smoke Management | Turbo Extraction Fan | Splatter Shield & Cool-Air Zone |
| Cooking Surface | 13.75″ x 8″ (Wide & Flat) | 9″ x 12″ (High & Deep) |
| Dishwasher Safe | Yes (Plates/Drip Tray) | Yes (Grate/Basket/Pot) |
| Included Extras | Grill & Griddle Plates | Thermometer, Crisper Basket, Cooking Pot |
| View Current Price on Amazon | View on Amazon | View on Amazon |
Detailed Comparative Review: My Kitchen Counter Experience
Testing these was less about reading manuals and more about seeing how they handled a “Friday Night Steak Night” and a “Sunday Football Wing Special.”
Design: The Wide Open Range vs. The High-Tech Cube
The PowerXL looks and feels like a miniature version of a backyard grill. Its design is horizontal, which I found incredibly intuitive for flipping long racks of ribs or a “spatchcock” chicken. It sits low to the counter, and the glass lid is a game-changer for someone like me who likes to keep an eye on the browning process without letting all the heat out.
The Ninja Foodi Smart XL is a much beefier, taller unit. It looks like it belongs on a spaceship. It occupies less width on the counter than the PowerXL but needs more “headroom” because the lid flips upward. The build quality feels more “premium”—the clunk of the lid and the weight of the 4 qt. cooking pot feel like they are built to last through the 2030s.
Ease of Use: Intuitive Griddle vs. The Smart Cook System
Using the PowerXL felt like using a traditional stove-top griddle. You set the temp on the LED display, wait for it to get hot, and start cooking. The Turbo Extraction Fan is surprisingly quiet, and you can actually see it “pulling” the smoke away from the meat. It’s simple, effective, and requires almost no learning curve.
The Ninja Foodi, however, is for the person who wants perfection without the guesswork. The Smart Cook System is the most impressive feature I’ve used this year. I plugged the dual-sensor thermometer into a thick ribeye, selected “Medium Rare” on the digital panel, and walked away. The Ninja alerted me when it was time to flip and told me exactly when to take it off to rest. No more cutting into the meat to “check the color.” For a novice cook, the Ninja is a safety net; for an expert, it’s a precision tool.
Functions: Searing vs. The “Air Fryer” Advantage
This is where the competition gets lopsided. The PowerXL does two things: it grills and it griddles (if you have the flat plate). It’s perfect for pancakes, eggs, and burgers. It’s a flat-top lover’s dream.
But the Ninja Foodi is a 6-in-1 powerhouse. While I was waiting for my steaks to finish, I could use the 4 qt. Crisper Basket to make air-fried French fries with “75% less fat.” The Cyclonic Air at 500°F creates a char-grill effect that actually surrounds the food. On the PowerXL, you only get heat from the bottom. On the Ninja, the air circulates around the food, which means I didn’t have to flip my chicken wings once. They came out crispy on all sides.
Maintenance: The Dishwasher Duel
If a kitchen appliance is hard to clean, it eventually ends up in the back of the pantry. Both brands know this.
The PowerXL features a Cerami-Tech coating that lived up to the hype. I grilled a piece of salmon with a sticky glaze, and it slid right off. The grill plate and the water-filled drip tray both went into my dishwasher without a problem. The Ninja Foodi parts are also dishwasher safe, including the splatter shield, which is a small mesh screen that protects the heating element. I found the Ninja a bit more tedious to clean only because there are more parts (the pot, the grate, the thermometer), but the non-stick quality of the PTFE/PFOA-free coating is top-notch.
PowerXL Indoor Smokeless Grill
Pros:
- Large Grilling Surface: Fits 8 burgers or 3 racks of ribs easily.
- True Smokeless Tech: The extraction fan is best-in-class for indoor use.
- Glass Lid: Allows for visual monitoring without losing heat.
- Slim Profile: Easier to store in standard kitchen cabinets.
Cons:
- Single Dimension: It doesn’t air fry, bake, or dehydrate.
- Max Temp 450°F: Slightly lower than the Ninja for high-heat searing.
- Bottom-Heat Only: Requires more frequent flipping for even cooking.
Ninja Foodi Smart XL Grill & Air Fryer
Pros:
- Total Versatility: Replaces your air fryer, toaster oven, and indoor grill.
- Foolproof Doneness: Smart Thermometer ensures you never overcook a steak again.
- Higher Heat: 500°F provides better “BBQ-style” sear marks.
- Healthier Cooking: Air fry function works brilliantly for crispy, low-fat sides.
Cons:
- Bulky: Takes up significant vertical space on the counter.
- Smaller Footprint: Can’t fit a full rack of ribs without cutting them.
- Price: Generally more expensive due to the multi-functional tech.
The Final Recommendation: Which Indoor Grill Wins?
After a month of living with both, my kitchen has a clear winner—but yours might be different depending on your family size.
I recommend the PowerXL Smokeless Grill if you have a large family and your primary goal is to replicate a backyard BBQ experience. If you want to cook 8 burgers at once or do a full breakfast of eggs and bacon on the griddle plate, the horizontal space of the PowerXL is unmatched. It is a dedicated, high-capacity grill that does one thing exceptionally well.
I recommend the Ninja Foodi Smart XL if you want a kitchen “Swiss Army Knife.” If you are a couple or a smaller family and you want to be able to grill a steak to a perfect Medium-Rare while air-frying a side of crispy fries in the same machine, the Ninja is the better investment. It saves space by replacing other appliances and takes the stress out of protein cooking with its thermometer.
- SMART INDOOR GRILL & AIR FRYER COMBO: The Ninja Foodi Smart XL Grill is an all-in-one indoor...
- CYCLONIC GRILLING TECHNOLOGY: Enjoy authentic BBQ grill flavor indoors with 500°F cyclonic air...
Personally, I would choose the Ninja Foodi Smart XL. The ability to air-fry wings and get a perfect 500°F sear on a steak using a smart thermometer makes it the more “future-proof” appliance for 2026.
Frequently Asked Questions (FAQs)
Q: Is the PowerXL actually “smokeless”?
A: “Virtually” is the key word. The fan does a massive job of sucking in smoke, but if you’re grilling high-fat meats like ribeyes on high heat, you might still see a tiny bit of vapor. It is, however, miles better than a standard stovetop grill pan.
Q: Does the Ninja Foodi splatter grease?
A: The Ninja includes a splatter shield that covers the heating element. This keeps the smoke down and prevents grease from baking onto the internal fan, which is a major design win.
Q: Can I use the PowerXL outdoors?
A: Yes, it is rated for both indoor and outdoor use (as long as you have a 110V outlet). It’s a popular choice for “tailgating” near an RV.
Q: How long does the Ninja Thermometer take to read?
A: It is a real-time, dual-sensor probe. It stays in the meat during the entire cooking process and gives you a live temperature reading on the front LED panel.
Q: Can I cook frozen meat?
A: Yes! Both units claim to handle meat straight from the freezer. The Ninja’s cyclonic air is particularly good at this, as it thaws and sears simultaneously.
