Ninja Indoor Grill Models Explained

On this page (9 sections)

1. Which Ninja indoor grill model fits your cooking style?
2. What do Ninja Foodi Smart grills do?
3. How do Ninja Sizzle models differ?
4. How much cooking space do you actually need?
5. How should you set up and use a Ninja indoor grill?
6. Which mistakes cause smoke, uneven browning, or extra cleanup?
7. How should you clean the plates, basket, and lid?
8. Which Ninja indoor grill should you choose for your kitchen?
9. How should you make the final Ninja indoor grill decision?

Choose a Foodi Smart Ninja indoor grill for grilling, air frying, and thermometer guidance, or a Sizzle for switching between ridged grilling and a flat griddle. The right choice depends on the meals you'll make most often and the space you can give the appliance.

The FG551 and DG551 belong to the Foodi Smart line. The GR101 and GX101 belong to the Sizzle line, with different cooking surfaces, controls, and storage demands.

Which Ninja indoor grill model fits your cooking style?

Pick a Foodi Smart for air-crisped sides and probe-guided proteins, or a Sizzle for burgers and flat-top meals. Choose the cooking format first, then narrow down the model.

Think through 3 regular dinners before choosing. Chicken with air-crisped potatoes points toward Foodi, while pancakes, eggs, and burgers point toward Sizzle.

If you already have an air fryer you like, a flat griddle may add more to your kitchen than another air-frying appliance. Our Best Indoor Grills for Home Kitchens guide helps place these Ninja models alongside other indoor grill formats.

The Foodi models are close alternatives, so use our Ninja DG551 vs FG551 model guide to compare them. For the plate-based models, our Ninja Sizzle vs Sizzle Pro XL comparison focuses on size and temperature control.

What do Ninja Foodi Smart grills do?

The FG551 and DG551 grill, air crisp, roast, bake, broil, and dehydrate. Both include a Smart Thermometer with 4 protein settings and 9 doneness levels.

Those functions suit cooks who rotate between grilled mains, crisped snacks, and small oven-style meals. They don't remove the need to plan batches, since cooking two foods at different temperatures still takes coordination.

How do the FG551 and DG551 Ninja indoor grills differ?

The main buying difference is physical fit, rather than the cooking menu. Ninja describes the DG551 as an updated design with the same functions and benefits.

The FG551 measures 18.74 inches deep, 17.95 inches wide, and 14.45 inches high, and weighs 22.4 lb. The DG551 measures 15.7 inches deep, 11.1 inches wide, and 16 inches high, and weighs 25 lb.

Measure the full working area, including room to open the lid and remove hot parts. A footprint that fits a shelf doesn't prove the appliance can operate safely beneath it.

Choose the FG551 if its shape fits your counter and you want several cooking modes in one appliance. Its grill grate fits up to 6 steaks or 24 hot dogs, and it includes a 4-quart pot and crisper basket.

Treat those food counts as capacity guides, since portion size changes how much fits. Skip this model if you mainly need a flat surface for breakfast or expect to carry it in and out of a cupboard daily.

Choose the DG551 if you want the Foodi functions and its taller, narrower dimensions suit your space. Skip it if the extra height creates a lid-clearance problem or its weight makes storage awkward.

The DG551 combines a temperature-controlled grate, splatter shield, and cool-air zone to reduce smoke. That still calls for airflow, as explained in our indoor grill ventilation guide.

For more choices with this cooking format, see our indoor grill and air fryer combos.

How do Ninja Sizzle models differ?

Choose the GR101 for easier lifting, or the GX101 for a larger cooking surface. Both include interchangeable grill and griddle plates, letting you change surfaces between meals.

The GR101 has 14-inch plates, reaches 500°F, and uses a perforated mesh lid to help control smoke and splatter. Its plates fit 6 burgers or pancakes, depending on their size.

Choose the GR101 for smaller batches or a kitchen where the grill must be stored after use. At 7.8 lb, it's much lighter than the other models here.

It measures 14.72 inches deep, 15.16 inches wide, and 6.1 inches high. Skip it if you regularly need to serve a group at once, since a smaller surface means more batches and more food waiting.

Choose the GX101 for group breakfasts, larger burger batches, or meal prep. Ninja says its cooking surface is 40% larger than the GR101's and can fit 10 or more burgers.

Its ceramic nonstick plates are made without PFAS, and the ventilated lid detaches for cleaning. At 23.2 lb and 20.85 inches deep by 15.22 inches wide, it needs a practical home on your counter or a sturdy nearby shelf.

Skip the GX101 if most meals are for 1 or 2 people and storage is tight. Extra cooking area earns its place when you use it regularly.

How much cooking space do you actually need?

Buy enough surface for your usual meal, rather than an occasional gathering. A larger grill helps when it cuts out a regular second batch, but it also adds weight and cleaning area.

Lay out the raw ingredients for a normal dinner on a tray before shopping. Picture room between pieces, plus space to turn them without pushing food into a grease channel.

Food counts don't account for every meal shape. Long skewers, thick steaks, and mixed vegetables use space differently, so avoid choosing by the largest advertised count alone.

Also plan how you'll serve sides. Grilling meat and then changing to a griddle plate requires safe cooling and handling, so don't assume interchangeable plates mean an instant mid-meal swap.

How should you set up and use a Ninja indoor grill?

Use a level, heat-safe counter with clear airflow, then follow the manual for clearances and first-use preparation. Keep the cord away from the hot cooking area and leave room for a plate of raw food and a separate clean serving plate.

Wash the removable food-contact parts as directed before the first meal. Make sure they are dry and correctly seated, with grease-catching parts in place, before heating the appliance.

Preheat for the selected mode before adding food. Pat meat and vegetables dry, then use a light coating of suitable cooking oil rather than leaving puddles on the surface.

Cook similar-sized pieces together so they finish closer to the same time. For mixed meals, start with foods that need longer cooking and keep raw-meat utensils separate from ready-to-eat food.

On Foodi Smart models, follow the probe placement instructions for the cut you're cooking. Keep the sensing tip in the center of the thickest part, away from bone and large pockets of fat.

For Sizzle cooking, use the ridged plate when grill marks and drainage suit the food. Use the flat plate for small pieces, pancakes, and foods that need broad contact with the hot surface.

Which mistakes cause smoke, uneven browning, or extra cleanup?

Avoid crowding, wet food, and old grease, since all three can make indoor grilling harder. Leave enough space for heat to reach the food and for utensils to turn it safely.

Don't set every meal to the highest temperature. Sugary sauces and loose seasoning can darken quickly, so add sweet glazes late and use the recommended setting for the food.

Resist moving food constantly if you want browning. Give the surface time to form a crust, then turn as needed rather than pressing out the juices.

Low-smoke cooking still produces heat, odors, and sometimes visible smoke. Keep ventilation running and remove grease buildup between sessions instead of expecting the lid to solve every smoke problem.

How should you clean the plates, basket, and lid?

Let the appliance cool and unplug it before cleaning, then remove the parts the manual identifies as removable. Keep the electrical base out of water and wipe it with a damp cloth as directed.

Use nonabrasive tools on coated surfaces, and soften stuck food before scrubbing. Empty grease carefully once it has cooled, then dry the cleaned parts before reassembly.

Dishwasher permission varies by part. The GR101's detachable mesh lid is dishwasher-safe, while the DG551's removable grate, basket, and pot are dishwasher-safe; don't extend either instruction to every component or model.

Clean grease-catching areas and splatter-control parts along with the cooking surface. Our Ninja Foodi grill cleaning guide explains a practical care routine for that appliance style.

Which Ninja indoor grill should you choose for your kitchen?

Choose the cooking format you'll use each week, then check the appliance's working space and storage route. A useful grill needs to fit both your meals and the place where you'll keep it.

• FG551: Choose it for Foodi cooking modes and thermometer guidance when its wider shape fits your counter.
• DG551: Choose it for the same core Foodi functions when its taller, narrower design fits better.
• GR101: Choose it for grill and griddle meals with easier lifting between counter and cupboard.
• GX101: Choose it when larger batches will regularly save you a second cooking round.

If you're still deciding between the formats, read Ninja Foodi Grill vs Ninja Sizzle. If air frying is essential, narrow your search with our guide to grill and air fryer combos.

How should you make the final Ninja indoor grill decision?

Pick a Foodi Smart Ninja indoor grill if air frying and probe guidance fill a gap in your kitchen. Pick a Sizzle if a flat cooking surface will get regular use alongside grilling.

Before ordering, measure the counter, lid clearance, and storage space, then decide where the clean plates and accessories will go. If Sizzle fits your meals, use the Sizzle model comparison to decide whether larger batches justify the GX101's size and weight.

Frequently asked questions

What is the difference between Ninja Foodi and Ninja Sizzle grills?

Foodi Smart grills combine grilling, air frying, and thermometer guidance, while Sizzle models use interchangeable ridged grill and flat griddle plates. Choose Foodi for proteins and air-crisped sides across several cooking modes, or Sizzle if pancakes, eggs, and other flat-top meals are part of your routine.

Are the Ninja FG551 and DG551 the same grill?

The FG551 and DG551 are separate models with the same 6 cooking functions, Smart Cook System, and thermometer guidance; Ninja describes the DG551 as an updated design with the same functions and benefits. Their dimensions and weights differ, so choose based on counter fit and storage rather than expecting extra cooking modes.

What is the difference between the Ninja Sizzle GR101 and GX101?

The GR101 has 14-inch interchangeable plates, while the GX101 has 20-inch plates and ProTemp IQ control from 250°F to 500°F. Choose the GR101 for easier lifting and smaller meals, or the GX101 when a larger cooking surface will reduce the number of batches you make.

Which Ninja indoor grill has a thermometer?

The Ninja Foodi Smart FG551 and Ninja Foodi Smart XL DG551 include a Smart Thermometer with 4 protein settings and 9 doneness levels. These are the models to compare if probe guidance matters to you; follow the probe placement instructions, since a tip near bone or fat can give a misleading reading.