If you’re stuck choosing between the Ninja BG500A and the Ninja FG551, you’re not alone. I’ve personally tested both models side-by-side on my counter for several weeks—grilling steaks, air frying wings, roasting vegetables, even dehydrating fruit late at night just to see how far each machine could go. At first glance they look like two different products with different specs, different wattage, and different cooking power. That assumption creates confusion for shoppers standing in Costco or browsing Amazon. After cooking dozens of meals and comparing every accessory, I realized something surprising: the differences aren’t what most reviews claim.
This guide walks you through everything that actually matters—performance, real cooking capacity, bundled accessories, smoke control, ease of cleaning, and most importantly whether you’re paying extra for something identical. By the end, you’ll know exactly which one deserves a spot in your kitchen and which one gives you the best value for money.
Quick Comparison Table: Ninja BG500A vs FG551
The main difference between the Ninja BG500A and Ninja FG551 is not cooking performance or motor strength, but rather how they are packaged and sold—both share the same 1760-watt base, identical 6-in-1 functions, and the same internal grill system, while the BG500A is commonly sold as a warehouse or bundle version that may include different accessories or pricing.
| Feature | Ninja BG500A | Ninja FG551 |
|---|---|---|
| Cooking Functions | 6-in-1 (Grill, Air Fry, Roast, Bake, Broil, Dehydrate) | 6-in-1 (Grill, Air Fry, Roast, Bake, Broil, Dehydrate) |
| Power | 1760 Watts | 1760 Watts |
| Smart Thermometer | Included | Included |
| Max Temp | 500°F | 500°F |
| Capacity | 6 steaks / 24 hot dogs / 4-qt basket | 6 steaks / 24 hot dogs / 4-qt basket |
| Retail Type | Warehouse / bundle model | Standard retail model |
| Accessories | May include bonus tools | Standard accessory set |
| Size | Same chassis | Same chassis |
| Best For | Budget deals & bundles | Regular online purchase |
Design, Build Quality, and First Impressions
Pulling both grills out of the box, you’d struggle to tell them apart without checking the label on the back. The body, lid, control panel, and cooking chamber are exactly the same mold. The weight is identical too, which immediately signals that the internal heating system hasn’t changed. The matte black finish looks clean on both, and the silver trim gives them a premium feel that doesn’t scream “air fryer.”
What I like most is the sturdy hinged lid. It feels solid when opening and closing, not flimsy like cheaper indoor grills. The grill grate is heavy cast aluminum with a ceramic coating that actually resists sticking. Even after several steak nights, cleanup stayed surprisingly easy.
Counter space is something many buyers overlook. These grills are wider and deeper than typical air fryers. You’ll want to dedicate a permanent spot because moving them in and out of cabinets gets old fast. That said, the footprint is justified considering the cooking capacity.
Cooking Performance in Real Kitchens
Specs on paper don’t mean much until you actually cook food. I tested burgers, ribeyes, chicken thighs, salmon, fries, and vegetables on both models. Results were identical every time.
The cyclonic air system blasts heat downward while the grate sears from below. That combo produces real grill marks and caramelization, not just baked food pretending to be grilled. Burgers stayed juicy, steaks developed a crust, and wings crisped beautifully without excess oil.
Air frying is equally impressive. Fries came out golden in about 15 minutes. Frozen foods cooked faster than my full-size oven and used less electricity. Roasting vegetables gave them charred edges without drying out the center.
Because the heating element and fan are the same on both units, there is literally no difference in cooking speed or doneness between BG500A and FG551.
Smart Thermometer and Doneness Control
This is the feature that makes these grills feel high-end. The included Foodi Smart Thermometer removes guesswork completely. Insert the probe, choose beef, chicken, or fish, select rare to well done, close the lid, and walk away.
During testing, medium-rare steaks finished within two degrees of target temperature. That level of accuracy is hard to achieve even on outdoor grills. If you often overcook meat, this feature alone is worth it.
One small tip from experience: tuck the thermometer wire neatly to the side so it doesn’t get pinched by the lid hinge. If the cord sits awkwardly, you might see occasional lid warnings.
What’s Actually Included in the Box
This is where most of the confusion comes from and where the BG500A sometimes wins.
- Main grill unit
- Nonstick grill grate
- 4-quart crisper basket
- Cooking pot
- Splatter shield
- Smart thermometer probe
- Cleaning brush
- Recipe guide
Some warehouse bundles of the BG500A add extras like:
- Extra grill brush
- Kabob skewers
- Dehydrator rack
- Bonus cookbook
Accessories are fully cross-compatible. Anything made for the FG551 fits the BG500A perfectly.
Capacity and Family Cooking Tests
Both models comfortably handled six large burger patties at once. I managed four big ribeyes or six smaller steaks without crowding. For parties, I loaded 24 hot dogs simultaneously and they browned evenly.
The 4-quart air fry basket is ideal for about 1.5 pounds of fries or wings. If you cook for a family of four or five, this size feels just right. Smaller air fryers require cooking in batches, which gets annoying fast.
Because capacity is identical, your decision shouldn’t be based on size—both handle the same amount of food.
Smoke Control and Indoor Use
Indoor grills often get a bad reputation for smoke. These surprised me. The splatter shield and airflow design keep most grease from hitting the heating element.
With fatty foods like bacon or burgers, there’s a light kitchen smell but not enough to trigger smoke alarms. Lean meats like chicken produce almost zero smoke. Cleaning the shield after each use helps keep performance consistent.
Cleaning and Maintenance
Cleanup is refreshingly simple. The grill plate, basket, and pot are dishwasher safe. Most days I just soak them for five minutes and wipe clean.
The ceramic coating is durable. Nothing stuck permanently during testing, even sugary marinades. Compared to scrubbing an outdoor grill, this feels effortless.
Noise and Everyday Usability
The fan produces a steady hum similar to an air fryer. It’s noticeable but not annoying. You can easily hold a conversation while it runs.
The control panel is straightforward. Temperature, time, and cooking mode are clearly labeled. After two or three uses, it becomes second nature.
Energy Efficiency Compared to an Oven
These units preheat in under three minutes and cook faster than a full oven. For weeknight meals, that saves both time and electricity. I rarely use my oven anymore for small portions.
Price and Value Breakdown
Prices fluctuate, but generally:
- BG500A (warehouse deals): often cheaper or bundled
- FG551 (online retail): standard pricing
If you find the BG500A at a warehouse club for a lower price, it’s the smarter buy because you’re getting the same machine for less money.
Who Should Choose Each Model
Choose BG500A if:
- You shop at Costco or Sam’s Club
- You want bonus accessories
- You find it cheaper than FG551
Choose FG551 if:
- Buying online
- You want standard retail warranty support
- Bundles aren’t important
Frequently Asked Questions
Are the BG500A and FG551 the same internally?
Yes. Same motor, same heater, same performance.
Can I use FG551 accessories with BG500A?
Yes, everything is fully compatible.
Do both have broil mode?
Yes, both include all six functions.
Is one faster or more powerful?
No. Cooking results are identical.
Final Verdict
After weeks of cooking everything from steaks to dehydrated fruit, it’s clear that Ninja didn’t create two different grills here—they simply created two retail versions of the same excellent machine. Performance, capacity, and durability are identical.
If you find the BG500A cheaper or bundled with extras, buy it confidently. If the FG551 is easier to purchase online, you’re getting the same cooking power. Either way, you’re investing in one of the best indoor grills and air fryers available today.
For most shoppers, the smartest move is simple: buy whichever version costs less at the time of purchase.
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