The 4 Best Ninja Glass Air Fryers: Which Crispi Fits You?

We built our scoring around what makes glass different. Crisping comes first: we judged frozen fries and wings for even browning, then ran a roast, a bake and a reheat to see where top-down heat helps and where it falls short. Handling comes next, because a full glass container is heavy and hot.

Each Crispi earned its score through everyday cooking in our kitchen, from quick snacks and reheated leftovers to full weeknight dinners, so the ratings reflect how each one fits a real routine rather than a single showcase meal.

Cleanup, noise and storage round out the score, from the seams where food hides to whether the kit fits in a cabinet. Our air fryer reviews and buying guides score basket and oven-style models the same way.

The Pro fixes the original Crispi's biggest limit, which is fixed temperature presets. We roasted a sugar-marinated whole chicken at 300 degrees F, well below the recipe's 375, and it came out moist with no burnt glaze. Wings took about 23 minutes to reach crackly, browned skin with juicy meat inside, and the near-instant start makes it quicker than the oven for weeknight dinners.

Where the Pro gives you one big container, the DualZone splits dinner in two. We baked chicken thighs at 350 degrees F for 15 minutes in one drawer and roasted broccoli at 400 degrees F for 13 in the other. Smart Finish started the thighs first and delayed the broccoli until both could finish together. The thighs stayed juicy, though the broccoli came out uneven, some florets crunchy and some soft. On a shrimp and potato night, stirring every 5 minutes and tapping +1 Minute made the biggest difference.

The 4-in-1 turns the idea around: a palm-size heating lid called the PowerPod sits right on the glass. Three boneless chicken breasts cooked on Air Fry in 16 minutes, well below the manual's 20 to 25 minutes, with browned exteriors and juicy centers. Diced zucchini browned evenly with no sogginess, one of the best vegetable results we've had from any air fryer. Afterward, the whole kit nested onto one cabinet shelf.

Unlike the 4-in-1, this model earns its value through the extra bowl, not the lowest price. At about $185 on sale versus about $153 for the 4-in-1, you pay roughly $32 more for a third container, plate and lid plus Keep Warm. A spare glass container alone runs about $44 to $60, depending on size and sales.

We used the middle-size 2.5-qt bowl most often because it held the right amount of fries or sides for two people. Wings went into the glass in a loose pile and needed only a stir at the halfway mark.

The glass checks out; the word "non-toxic" goes further than the evidence does.

Borosilicate Glass vs Nonstick Coatings

Unlike a coated aluminum basket, Ninja's CleanCrisp containers are uncoated borosilicate glass, so nothing on the food-contact surface can chip off. In our kitchen, the glass never took on the greasy film a metal basket builds up, and it didn't hold odors.

Borosilicate is also why Ninja can call these bowls freezer-to-fryer safe. Here's how borosilicate glass handles sudden temperature changes: it withstands a swing of about 330 degrees F, versus about 100 degrees F for ordinary glass. It can still crack under rapid or uneven changes.

What PFAS-Free Does and Doesn't Cover

It helps to know what PFAS "forever chemicals" are: thousands of long-lasting compounds, with nonstick cookware as one familiar use. Ninja states the glass is PFAS-free, PTFE-free and BPA-free on food-contact surfaces.

The aluminum crisper plate is the only coated part, with a finish Ninja calls PFAS-free nano-ceramic; the coating description varies across Crispi generations. Handles and lids are BPA-free plastic. "Non-toxic" also has no legal definition for cookware. If uncoated food contact is your goal, the glass delivers it; the plate is the part to watch.

Unlike a basket model, every Crispi cooks in a clear glass container on a raised crisper plate, with all heat coming from above. On the 4-in-1 and 5-in-1, that heat comes from the PowerPod lid; on the Pro and DualZone, it's built into a countertop unit.

You can watch your food cook without opening the basket. The container doubles as a storage dish, so leftovers go from fryer to fridge under a snap-lock lid and back again. Our leftover chicken went straight from the fridge into the Pro without the glass cracking and reheated crisp and juicy.

The trade-offs are weight and baking. The Pro's 6-qt glass weighs about double a typical aluminum basket. Because heat comes only from the top, cookies brown on top before the bottoms set, so small batches work better than a full sheet's worth.

It comes down to how many you feed and how much counter you have.

Capacity and Container Sizes

A 6-cup bowl is a one-person lunch, and a 4-qt realistically feeds two. The Pro's 6-qt is deeper rather than wider: its floor gives about 64 square inches, the same as a 4-qt Crispi, so a layer of wings still tops out around 11. Its 2.5-qt bowl puts food close to the heater, so taller items can scorch on top.

Single Container vs DualZone

Pick the DualZone only if you regularly cook two foods at different temperatures; it can't merge its zones into one big batch.

Cooking Functions and Max Temperature

Every Crispi tops out at 450 degrees F, so low-end control separates them. The Pro's dial starts at 80 degrees F, while the PowerPod models rely on presets. Only the Pro and DualZone include Roast and Dehydrate, and only the 5-in-1 adds Keep Warm.

Storage, Portability and Weight

The 4-in-1 measures 11.5 x 9.76 in and the 5-in-1 11.5 x 9.25 in, both with 36-in cords. The Pro sits on an 11.8 x 12.2 in footprint with a 33.25-in cord, but its two bowls don't nest. The DualZone's 25.2-in cord is the shortest. Weights vary: the Pro runs roughly 11 to 17.5 lb depending on which container is seated, and the DualZone's listed 31 lb looks like a boxed weight.

Cleaning and Dishwasher Safety

On every model, the glass, plates and lids go in the dishwasher; the PowerPod's underside and the Pro's base seam need hand cleaning. After a dishwasher run, check that the plates still sit flat, since they can spring back unevenly.

Prices reflect late-September 2026 sales and move week to week.

One tip from our kitchen: if you buy the Pro, add Ninja's 4-qt glass as your second bowl, since the base accepts it. Between the two PowerPod models, the 5-in-1 is worth the step up only if you'll use its middle bowl weekly. Choose the DualZone only if you have the counter depth for it.

If glass isn't for you, our guide to the best Ninja air fryers covers the brand's basket and oven-style models.