Ninja AG301 vs FG551: Which Indoor Grill Is Better For You?

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Looking for an indoor grill that can do more than just grill? The Ninja AG301 and FG551 are both strong contenders, but they cater to slightly different needs. Let’s compare them side by side to help you choose the right one.

Table of comparison

FeatureNinja AG301Ninja FG551
Cooking Functions5-in-1: Grill, Air Fry, Roast, Bake, Dehydrate6-in-1: Grill, Air Fry, Roast, Bake, Broil, Dehydrate
Smart ThermometerNoYes
Cooking CapacityFits 4 steaksFits 6 steaks, 24 hot dogs
Grill Grate Size10″ x 10″9″ x 12″
Cooking Surface Area100 sq. in. (approx)198.5 sq. in.
Dimensions14.9″ x 14.9″ x 11.02″15.75″ x 16.54″ x 11.1″
Wattage1760 watts1760 watts
Weight20 lbs22.4 lbs
Smoke Control SystemNoYes
Preheat/Frozen-to-GrillYes (under 25 min)Yes (under 25 min)
Dishwasher-Safe PartsYesYes
Price (Approx)$169.99$229.99

Key features of both models

Both grills deliver restaurant-style char and air frying with less fat. However, they differ in size, control features, and overall smart capabilities.

Key features of Ninja AG301

  • Compact design ideal for smaller kitchens

  • 5-in-1 functionality for versatile cooking

  • Cyclonic grilling with 500°F air

  • Non-stick, PTFE/PFOA-free ceramic coatings

  • Easy to clean parts; dishwasher safe

  • Cooks from frozen in under 25 minutes

Key features of Ninja FG551

  • Larger XL capacity—perfect for families or entertaining

  • 6-in-1 cooking options including Broil

  • Smart Cook System with 4 protein presets and 9 doneness levels

  • Dual-sensor Foodi Smart Thermometer for precision

  • Smoke control system for reduced kitchen smoke

  • Higher cooking surface area (198.5 sq in)

Key differences between Ninja AG301 and FG551

Cooking Functions

The FG551 offers 6 functions, adding Broil to the AG301’s 5-in-1 setup.

Smart Technology

Only the FG551 includes the Foodi Smart Thermometer and Smart Cook System, allowing for touch-of-a-button doneness control.

Capacity & Size

The FG551 is larger and heavier but offers nearly double the cooking space. Great for batch cooking or large families.

Smoke Management

The FG551 has a Smoke-Control System—ideal for indoor use without lingering odors or smoke.

Price

The AG301 is more affordable, while the FG551 commands a premium due to its advanced features.

Which model should I choose?

If you’re looking for a compact, affordable, and versatile indoor grill with core features like air frying and grilling, the Ninja AG301 is a great choice for singles or small households.

If you want smarter cooking, more space, and smoke reduction along with precise doneness control using a built-in thermometer, then the Ninja FG551 is worth the extra investment.

FAQ

Is the Ninja FG551 worth the higher price?

Yes, if you value smart cooking technology, larger capacity, and smoke control features, it offers great value for the extra cost.

Can I cook from frozen in both models?

Yes, both can grill from frozen to done in under 25 minutes.

Do both models have dishwasher-safe parts?

Yes, both include nonstick, dishwasher-safe components.

Are the heating elements and wattage the same?

Yes, both models run on 1760 watts of power with cyclonic air technology.

Which model is better for families?

The Ninja FG551 is better suited for larger households due to its XL size and higher capacity.