Quarts and cubic feet measure different things

Convert and the comparison looks settled: one cubic foot is about 30 liquid quarts, so the Breville Smart Oven Air Fryer Pro’s 1 cu ft cavity is several times the Ninja AF181’s 6.5-quart basket. The arithmetic is right and tells you almost nothing. A basket’s quarts are a single top-loaded layer. An oven’s cubic foot is measured wall to wall and includes the air above the rack, the space the elements occupy and the gap over the crumb tray — volume you cannot fill with food.

The usable comparison is the one four of these seven makers publish directly: pounds of food. Ninja claims up to 9 lb of wings in the AF181’s basket. Instant claims a 4 lb chicken or 2.2 lb of fries in the Vortex Plus. Ninja claims up to 4 lb in the SP101’s air-fry basket, plus a 13-inch pizza, nine slices of toast or six chicken breasts in the oven itself. Cuisinart’s listing claims up to 3 lb air frying in the TOA-70. Those claims name different foods and no maker publishes a method behind them, so treat them as four manufacturers’ own best cases rather than one ranked list. COSORI publishes no pounds figure for the 5-quart Pro Compact, and neither Breville publishes one.

Flat area is the half of capacity that quarts never capture. Breville states the BOV900’s interior comfortably fits most 9x13 in pans and 12 cup muffin trays, and ships a 13-inch pizza pan, two racks, the broil rack and roasting pan and a mesh basket with it. Independent measurement at RTINGS found the TOA-70 will not take a standard 9x13 in sheet pan, though it fits an average frozen pizza or a loaf pan. Ninja claims a 13-inch pizza for the SP101. No basket air fryer here publishes a flat-pan or pizza fit claim at all. If a sheet of cookies or a 9x13 pan is in your weekly rotation, that single line decides this purchase before wattage is mentioned.

What 1800 watts actually means

Four of the seven carry the same plate rating: the BOV900, the BOV845, the Cuisinart TOA-70 and the Ninja SP101 are each rated 1800W. At the 120V/60Hz those US specs assume, 1800W draws 15 amps. The AF181’s 1750W is 14.6 A. What your kitchen circuit will carry alongside a second appliance depends on the wiring behind the outlet, which no spec sheet describes; an electrician can tell you what you have.

Energy per batch is a different question from draw, and the plate rating does not answer it. Breville claims its Super Convection setting cuts cooking time by up to 30% on the BOV900, so a higher-wattage unit that finishes sooner is not automatically the one consuming more per batch. None of the other six publish a comparable time claim, which means this is Breville’s claim about Breville rather than a measured comparison — and nothing retrieved here times these units against each other.

Batch count is where a low rating quietly loses. Across the three baskets, watts per quart of published capacity run 269 for the AF181 (1750W, 6.5 qt), 283 for the Vortex Plus (1700W, 6.0 qt) and 300 for the COSORI (1500W, 5 qt). The COSORI draws the least and covers the least per load. If your usual dinner fills a 6.5-quart basket once but needs two runs in a 5-quart one, the lower rating is running for roughly twice as long.

Measuring the counter, not the box

Take the published dimensions in order. The BOV900 is 21.4 x 17.3 x 12.7 in. The BOV845 is 18.9 x 15.9 x 10.9 in (48.1 x 40.4 x 27.8 cm). RTINGS measured the TOA-70 at 16.5 x 15.6 x 14.0 in. Staples lists the SP101 at 15 x 7.6 x 19.7 in (H x W x D) — the deepest figure in the set, and the only one whose depth exceeds its width. Among the baskets, the AF181 is 11.3 x 14.6 x 12.0 in (28.6 x 37.0 x 30.4 cm) and the COSORI 10.7 x 10.8 x 11.9 in (27.2 x 27.5 x 30.3 cm), smaller than the AF181 on all three axes. Instant publishes 12.36 x 12.83 x 14.92 for the Vortex Plus without stating a unit of measurement, so you cannot plan a counter run from Instant’s own page.

Two measurements decide most of this: the clear width between whatever already lives on your counter, and the height from the countertop to the underside of the upper cabinets. On height the order is not what you would guess. The BOV845’s 10.9 in is the shortest published figure of all seven, the SP101’s 15 in is the tallest with the TOA-70’s 14.0 in next, and the COSORI’s 11.9 in and the AF181’s 12.0 in sit in the middle — a basket air fryer is not necessarily shorter than a toaster oven, only narrower.

Clearance is the figure nobody publishes. None of the manufacturer pages, owner’s guides or retailer listings retrieved for these seven states a required air-intake or exhaust gap. Plan on the published dimensions describing the appliance alone, and read the manual in the box before pushing anything back against a wall.

Which ones you can actually lift

COSORI publishes 10 lb (4.54 kg), the lightest figure here, and an Australian retailer lists the AF181 at 5.2 kg (~11.5 lb). Those two are within about a pound and a half of each other and the gap should not be pushed further than that. Staples lists the SP101 at 18.57 lb. The TOA-70 runs approximately 23–26 lb depending on the color finish, the heaviest published figure in this comparison.

The gap in this column is large: Instant publishes no weight for the Vortex Plus, and Breville publishes none for either the BOV900 or the BOV845. Three of seven cannot be compared on a specification that decides whether an appliance lives on the counter or in a cabinet. The SP101 answers it a third way — Ninja’s flip-away design stands the oven flat against the backsplash between uses, the only published storage mechanism among these seven. It does not make the unit lighter; it makes lifting it unnecessary.

When one appliance genuinely replaces two

Count the published function lists before assuming a toaster oven covers both jobs. The BOV900 names thirteen, including both Toast and Airfry — the longest list here. The SP101 names eight: Air Fry, Air Roast, Air Broil, Bake, Bagel, Toast, Dehydrate, Keep Warm. The TOA-70 also names eight, including Air Fry, Toast, and a reversible grill/griddle plate no other product here offers. The BOV845 names ten and no air-fry setting at all, which makes it the toaster-oven baseline in this set rather than a candidate for anyone who wants one box doing both. The AF181’s 6-in-1 has no toast, bagel or broil; the Vortex Plus’s 6-in-1 adds broil but still no toast; and COSORI advertises 9-in-1 with seven presets while the sources retrieved itemize only Preheat and Keep Warm, so toast cannot be confirmed either way.

Then do the counter arithmetic. The COSORI at 10.7 in wide and the AF181 at 11.3 in come to 22.0 in side by side, against the BOV900’s 21.4 in on its own. A full-size air-fryer toaster oven does not necessarily free counter space compared with two small appliances — it concentrates the footprint, trades width for depth, and buys you a flat cavity with published pan fits that no basket here offers.

Where the evidence runs thin

Three of these publish no weight and two publish no interior volume. No retrieved source publishes an interior volume for the BOV845 or the SP101, so neither is reported here. The BOV900’s 1800W comes from a retailer spec page rather than Breville’s own, while Breville publishes the BOV845’s 1800W directly. Every TOA-70 figure comes from retailers or the RTINGS review, with no manufacturer page read firsthand. Every figure in this article comes from the listings cited for the US models named here.