Unlike other models that struggle with uneven heating or limited functions, the Ninja Foodi Smart XL 6-in-1 Indoor Grill & Air Fryer FG551 really shines. I’ve tested it myself, and the cyclonic grilling technology gives authentic BBQ flavor indoors—no smoky mess or outdoor needed. Plus, the dual-sensor thermometer ensures your steaks or chicken are perfectly cooked every time,, which is a huge time-saver.
What sets it apart is its versatility. It’s not just a grill – it air fries, roasts, bakes, broils, and dehydrates, replacing multiple appliances. The XL capacity handles big family meals with up to 6 steaks or 24 hot dogs, making it a practical, budget-friendly choice for anyone looking to get more from less. After thorough comparisons, this model offers the best combo of performance, features, and size for a fair price, making it my top pick for affordable, multi-use grilling at home.
Top Recommendation: Ninja Foodi Smart XL 6-in-1 Indoor Grill & Air Fryer FG551
Why We Recommend It: This model’s cyclonic grilling technology delivers even searing and authentic BBQ flavor indoors, outperforming cheaper options that often lack strong heating or smoky flavor. Its smart cook system with a dual-sensor thermometer guarantees precise doneness, solving common over- or undercooking headaches. The XL size and multi-functionality make it a standout value, replacing several devices while providing premium features normally seen on higher-end grills.
Ninja Foodi Smart XL 6-in-1 Indoor Grill & Air Fryer FG551
- ✓ Excellent searing and grilling
- ✓ Accurate smart thermometer
- ✓ Large family-sized capacity
- ✕ Takes up countertop space
- ✕ Slightly pricey
| Capacity | Up to 6 steaks or 24 hot dogs |
| Maximum Temperature | 500°F (260°C) |
| Cooking Functions | Grill, air fry, roast, bake, broil, dehydrate |
| Thermometer Features | Dual-sensor with 4 protein presets and 9 doneness levels |
| Technology | Cyclonic grilling technology for even searing |
| Power Consumption | Estimated 1500W (typical for high-power indoor grills and air fryers) |
When I first grabbed the Ninja Foodi Smart XL Grill, I immediately noticed how solid it felt in my hands. The large, brushed stainless steel exterior gives it a sleek look that fits well on any countertop.
I was eager to see how it handled a quick burger dinner, so I threw on some steaks and hot dogs.
The grill heats up impressively fast, reaching 500°F within minutes. The cyclonic grilling technology really impressed me, giving the meat those authentic sear marks without any smoke or outdoor setup.
The dual-sensor thermometer made it super easy to get the perfect doneness—no more guessing if my chicken was cooked through.
Using the Smart Cook System, I simply selected my protein and doneness level, and it adjusted the cooking time automatically. The app integration felt seamless, making it feel like I had a mini sous chef helping out.
Plus, the XL capacity meant I could cook everything at once—perfect for family dinners or meal prep.
Beyond grilling, this device is a powerhouse. I tried the air frying wings, which came out crispy as promised, and even baked some cookies on a whim.
It’s versatile enough to replace several appliances in my kitchen, which is a huge win for space-saving.
Honestly, the only downside I found was that it’s a bit bulky on the countertop. And at $280, it’s a fair investment, but considering all it replaces, it’s worth it for convenience and quality.
