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Choose the Ninja 5-in-1 if you will regularly use its grill, roast, bake, or dehydrate settings as well as air frying—and have room for a larger multi-function appliance. Choose a standalone air fryer if air frying is the main job and you want a more focused appliance. Neither is a universal winner: the available evidence does not establish that the Ninja cooks faster or better than a particular standalone model.
Which Ninja 5-in-1 is this comparison about?
“Ninja 5-in-1” can refer to different products in different regions. The closest exact match identified here is the UK Ninja 5-in-1 Grill & Air Fryer EG351UK. Ninja lists five functions: Grill, Air Fry, Roast, Bake, and Dehydrate. Check the model number, local specifications, and electrical compatibility before buying; the UK product details may not apply to a similarly named appliance sold elsewhere.
How the two choices compare
| Decision | Ninja 5-in-1 EG351UK | Standalone air fryer |
|---|---|---|
| Cooking functions | Grill, Air Fry, Roast, Bake, and Dehydrate, according to Ninja’s UK product page. | Primarily an air-frying choice. Ninja’s catalog includes single- and dual-basket categories; check the exact model for any additional functions. Ninja air fryer catalog |
| Capacity | Ninja lists a 5.7 L cooking pot and describes it as suitable for up to four portions. | Varies by model. Compare the chosen model’s stated capacity and usable cooking area; manufacturers may describe capacity differently. |
| Counter and storage space | Listed dimensions are 43 cm high × 28 cm wide × 35.5 cm long; listed weight is 8.3 kg. | Varies by model. Check its dimensions and where it will be stored rather than assuming a standalone unit is smaller. |
| Best fit | Households likely to use several of the listed cooking functions and able to accommodate the appliance. | Households whose routine is mostly air frying and who prefer to choose a model around that task. |
The Ninja’s included accessories, according to its UK product page, are a cooking pot, grill plate, crisper plate, splatter guard, digital cooking probe, cleaning brush, and recipe guide. These details, dimensions, and capacity describe the EG351UK; do not assume they apply to every Ninja 5-in-1 or standalone model.
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Choose based on what you will actually cook
Pick the Ninja if its extra functions have a regular place in your routine
The added grill, roast, bake, and dehydrate settings are the main reason to consider the EG351UK over an air fryer focused on air frying. They are useful only if you expect to use them. If you would mostly select Air Fry, paying for and storing a multi-function appliance may not solve a problem you have.
#1 Best Overall
- 5-IN-1 INDOOR GRILL & AIR FRYER: The Ninja Foodi AG301 grills, air fries, roasts, bakes, and dehydrates — 5 versatile functions in one countertop appliance for real char-grilled flavor indoors, any day of the year.
- CYCLONIC GRILLING TECHNOLOGY: 500°F rapid cyclonic air delivers Surround Searing — circulating superhot air around every side of your food while the 500°F grill grate brands authentic char-grilled marks directly onto proteins and vegetables.
- OUTDOOR GRILLING POWER: Engineered with the BTU cooking power of a full-size outdoor grill, the AG301 replicates the high-heat sear and char-grilled flavor of a gas or charcoal grill — right from your countertop, year-round.
- COOK FROM FROZEN — CHAR-GRILLED IN UNDER 25 MINUTES: The AG301 takes frozen steaks, chicken breasts, burgers, and fish fillets straight from frozen to perfectly char-grilled in under 25 minutes — no thawing required.
- AIR FRY WITH UP TO 75% LESS FAT: The 4-qt crisper basket air fries wings, fries, and more with up to 75% less fat than traditional deep frying* — crispy results with little to no oil. *vs. hand-cut deep-fried French fries.
Pick a standalone air fryer if air frying is the priority
A standalone model lets you focus the comparison on the capacity, basket arrangement, footprint, and features you need for air frying. Ninja’s catalog offers single- and dual-basket categories; a dual-basket design may matter if cooking separate foods at the same time is important. Compare a specific model’s specifications rather than treating all standalone air fryers as alike.
What the available performance evidence can—and cannot—tell you
TechRadar’s hands-on review of the Ninja, published April 20, 2025, notes that the appliance preheats on most functions. Include preheating when estimating total time for a meal. The review is not a matched test against a named standalone air fryer, so it cannot establish which option cooks faster or produces better food in a direct comparison. Read TechRadar’s Ninja 5-in-1 review.
Rank #2
- THE ULTIMATE GLASS AIR FRYER SYSTEM — 3 SIZES, ONE POWERPOD: Everything you need for personal meals to family-sized feasts — includes the Crispi PowerPod plus 6-cup, 2.5-QT, and 4-QT TempWare glass containers, 3 crisper plates, and 3 leak-proof storage lids. One system that does it all.
- FULL-SIZED AIR FRYER POWER IN THE PALM OF YOUR HAND: The compact Crispi PowerPod packs the wattage of a full-sized air fryer into a portable, handheld design.* Cook crispy, golden results anywhere on your counter — no bulky appliance footprint required. *Based on wattage vs. Ninja AF100.
- COOK FOR ONE OR THE WHOLE FAMILY — THREE CONTAINER SIZES: The 6-cup container cooks a personal-sized meal in as little as 7 minutes. The 2.5-QT holds up to 1.5 lbs of French fries. The 4-QT fits a full 4-lb chicken with veggies. Right-size your cooking every time.
- NON-TOXIC BOROSILICATE GLASS — PFAS-FREE, PTFE-FREE, BPA-FREE: Cook directly in thermal shock-resistant borosilicate glass that goes straight from frozen to crispy in minutes — no nonstick coatings, no chemicals, no compromise. Watch your food cook through the transparent vessel for total peace of mind.
- 5-IN-1 FUNCTIONALITY: MAX CRISP, AIR FRY, BAKE, RECRISP & KEEP WARM: Five versatile cooking modes cover everything from crisping fresh-cooked meals to reviving leftovers as if they just came out of the oven — all in one glass air fryer system.
Ninja’s UK product page also makes performance and efficiency claims, but they are manufacturer claims rather than independent results or head-to-head comparisons with standalone air fryers. For example, its “up to 50% less energy than an oven” claim is based on testing and calculations using the recommended cook time for sausages with the Air Fry function versus conventional ovens. Treat the stated conditions as part of the claim, not as a general prediction of your energy use.
Quick Recap
Best Value
- SMART COOK SYSTEM: Achieve the perfect doneness from rare to well done at the touch of a button, with the Foodi Smart Thermometer monitoring your food's internal temperature for you.
- 5-IN-1 VERSATILITY: One appliance does it all—Grill, Air Crisp, Bake, Roast, and Dehydrate for endless meal possibilities indoors.
- 500°F CYCLONIC GRILLING TECHNOLOGY: Grill indoors year-round with 500°F Cyclonic Grilling Technology that delivers authentic char-grilled results.
- FROZEN TO CHAR-GRILLED IN 25 MINUTES: Go straight from freezer to perfectly char-grilled in just 25 minutes—no thawing necessary.
- 4-QT AIR FRY CRISPER: Enjoy crispy, guilt-free fried favorites using the 4-qt air fry crisper basket with little to no oil.
Rank #4
- ALL-IN-ONE SYSTEM: Includes the Ninja Crispi PowerPod, 6-Cup, 4-Quart & 2.5-Quart CleanCrisp TempWare Containers with lids.
Rank #3
- AIR CRISP TECHNOLOGY: 400℉ superheated air surrounds food for hot, crispy results with little to no oil.
- 5-IN-1 MULTI-FUNCTION AIR FRYER: Features 5 customizable cooking functions—Air Fry, Air Roast, Bake, Reheat, and Dehydrate for maximum versatility. A powerful1750-watt air fryer that’s BPA-free and built for everyday use.
- LARGE CAPACITY: The 5-QT nonstick basket and crisper plate fit up to 4 lbs of French fries or 5 lbs of chicken wings.
- GUILT-FREE FRIED FOODS: Up to 75% less fat than traditional air frying methods. Tested against hand-cut, deep-fried French fries.
- FROZEN TO CRISPY: Cook frozen foods in just minutes for an extra-crispy finish.
Check these details before deciding
- Measure the space. For the EG351UK, allow for its listed 43 × 28 × 35.5 cm dimensions and consider where you will store an 8.3 kg appliance.
- Compare a specific alternative. Check the standalone model’s dimensions, capacity, basket arrangement, and stated functions against your needs.
- Count the functions you will use. If grill, roast, bake, or dehydrate settings are unlikely to feature in your cooking, the Ninja’s extra functions may not justify choosing a multi-function unit.
- Confirm local details. Verify the precise model, electrical compatibility, current regional price, and warranty terms with the seller or manufacturer; the UK EG351UK specifications do not establish those details for other regions.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
