Quick answer: The Ninja Flip Toaster Oven & Air Fryer is model SP151 — 1,800 watts, 120 volts, 15 amps, 19.84 lbs, 19.13 in L x 10.2 in W x 18.43 in H, on a 32-inch cord. It folds up against a backsplash, which Ninja rates as taking up 50% less space. Eight functions, named by Ninja: air fry, roast, broil, bake, pizza, toast, bagel, dehydrate — there is no reheat, keep-warm or proof mode, whatever Amazon’s one-line summary says. Ninja’s own store lists it at $249.99 (checked September 18, 2026), and the box ships with an air fry basket, sheet pan, wire rack and removable crumb tray. Buy it if counter space is the binding constraint in your kitchen. Skip it if you need a quart figure, a published noise level, or trays you can throw in the dishwasher — Ninja’s spec table says “Dishwasher Safe: No.”
An earlier version of this page told readers that Ninja “has not attached a full specification sheet to the listing itself.” That was wrong, and this is the correction. SharkNinja’s US product page for the SP151 carries a full spec block — wattage, voltage, amperage, cord length, exterior dimensions, weight, housing material, warranty, dishwasher status and an itemised “In the Box” list. Ninja’s support site carries the SP150 Series owner’s guide in an article that says plainly, “This supports the SP151.” And Amazon shows 4.4 out of 5 stars across 2,026 ratings, a #3 rank in Toaster Ovens and “8K+ bought in past month” — a sales record, not a fresh listing.
So here is Ninja’s published spec sheet set next to Amazon’s, for the same product. They do not agree on the oven’s dimensions, and the gap is big enough to wreck a cabinet measurement.
The spec sheet, and the one place Amazon contradicts it
Left column is SharkNinja’s own US product page for the SP151. Right column is Amazon’s listing for ASIN B0D1CXL52G, which mixes Ninja-supplied marketing bullets with Amazon’s own catalogue fields. Where they differ, the difference is called out.
| Ninja’s own page (sharkninja.com) | Amazon listing (B0D1CXL52G) | |
|---|---|---|
| Model | “Model: SP151” | “Model Number SP151”, “Part Number SP151”, UPC 622356621083 |
| Wattage | “Wattage: 1,800 watts” — and “Wattage Peak: 1,800 watts”, so rated and peak are the same number | “Wattage 1800 watts” |
| Power | “Voltage: 120 volts”, “Amperage: 15 amps” | “Power Source Corded Electric” — no volts or amps given |
| Dimensions | “Product Dimensions: 19.13 in L x 10.2 in W x 18.43 in H” | “17.01″D x 15.75″W x 7.68″H” — conflicts. Measure with Ninja’s figures. |
| Weight | “Weight: 19.84 lbs” | Not listed |
| Cord length | “Cord Length: 32 in” | Not listed |
| Temperature range | Not published | “Temperature Range 85-450 °F” as a catalogue field, and a Ninja bullet crediting “6 infrared heating elements” |
| Capacity | “Air fry up to 4 lbs of ingredients, bake a 12” pizza” | “Air fry & roast up to 4 lbs of ingredients, bake a 12” pizza, toast up to 6 slices of bread, fits 6 chicken breasts”. Amazon also prints a “Capacity 17.01 cubic inches” field — see below. |
| Functions | “Air fry, Roast, Broil, Bake, Pizza, Toast, Bagel, Dehydrate” | Identical bullet — but Amazon’s one-line Item Highlight says “reheat” and drops roast and pizza |
| Housing | “Material: stainless steel” | “Material Stainless Steel”, “Finish Type Polished” |
| Controls | Not listed | “Control Type Button Control” |
| Dishwasher safe | “Dishwasher Safe: No” | Not listed |
| In the box | “Air Fry Basket, Sheet Pan, Wire Rack, Removeable Crumb Tray” | Same four, plus “quick start guide” |
| Warranty | “One (1) Year Limited Warranty”; spec table says “Warranty (years): 1” | “Manufacturer’s warranty can be requested from customer service.” |
| Price | $249.99 (Ninja’s store, September 18, 2026) | Moves. Check the live listing. |
| Track record | “5 out of 5 Customer Rating” | “4.4 out of 5 stars (2,026)”, “#3 in Toaster Ovens”, “8K+ bought in past month” |
The dimension row is the one that costs money. Ninja labels its third figure H and gives 18.43 inches; Amazon labels its third figure H and gives 7.68 inches. That is a 10.75-inch gap between two official sources describing the same oven, and only one of them built it. Amazon’s set has a second problem that Amazon’s own page creates: multiply 17.01 x 15.75 x 7.68 in together and you get about 2,058 cubic inches of exterior volume, which cannot sit on the same page as a “Capacity 17.01 cubic inches” field. The number 17.01 is also the first figure in Amazon’s dimension string, which looks like a data-entry slip, though Amazon does not say so. Plan your cabinet gap off Ninja’s figures and treat Amazon’s spec table as unverified.
The eight functions, named
Ninja publishes the list outright, on its own page and in the Amazon bullet, worded the same way both times: “8-in-1 FUNCTIONALITY: Air fry, Roast, Broil, Bake, Pizza, Toast, Bagel, Dehydrate”. That is the whole set:
- Air fry — Ninja’s claim is “Up to 75% less fat than traditional frying methods”, and on Amazon the same bullet adds the basis: “Tested against hand-cut, deep-fried French fries.” That is Ninja’s test, not ours.
- Roast, Broil, Bake — the conventional oven trio.
- Pizza — Ninja states the oven bakes a 12-inch pizza.
- Toast, Bagel — Ninja’s Amazon bullet states it toasts up to 6 slices of bread.
- Dehydrate — the eighth name on Ninja’s list. Ninja publishes no times or temperatures for it, or for any other function.
There is no reheat, no keep-warm and no proof setting in Ninja’s eight. This matters because Amazon’s one-line Item Highlight under the product title reads “Air fry, bake, broil, toast, bagel, dehydrate, reheat, 1800W, Flip up & away, XL capacity” — it invents a reheat mode and drops roast and pizza. Ninja’s spec page and Amazon’s own “About this item” bullet agree with each other; the headline blurb is the outlier. If you were counting on a reheat button, there is not one.
The heating hardware is what Ninja calls OvenCrisp Technology: “Infrared heating & circulating air combine for even cooking.” A Ninja-supplied bullet on Amazon puts numbers on it — “6 infrared heating elements enable a temperature range of 85-450F” — and that sentence appears nowhere on Ninja’s own site. It is still a brand claim, just one Ninja makes only at the retailer. Amazon separately lists “Temperature Range 85-450 °F” as a catalogue field.
Will it fit? Run the numbers, then read the fine print on them
This is the decision the SP151 exists to win, so do it with measurements instead of vibes.
Ninja’s figures: “Product Dimensions: 19.13 in L x 10.2 in W x 18.43 in H.” Ninja never says which state those describe — sitting flat and cooking, or flipped up against the backsplash. There is no “flat” or “flipped” label anywhere in the spec block. And the same spec block says the oven bakes a 12-inch pizza, which a 10.2-inch width cannot hold. So at least one of those three numbers is not the oven in cooking position, and Ninja does not tell you which. Take all three to the tape measure, not one.
Flipped up: Ninja’s claim is “Takes up 50% less space when you flip it up and away”, with the product description explaining the mechanism — “flip it up against your backsplash when not in use.” Worth noting that Ninja words the same claim two ways on one page: the bullet says you take up 50% less space, the description says you “save 50% more space.” One number, two phrasings, and 50% is Ninja’s figure either way.
Cord: 32 inches. That is under three feet, so the outlet has to be close. Weight: 19.84 lbs, which is a two-hand lift — worth knowing if your plan was a cabinet shelf rather than the backsplash.
Electrically: 1,800 watts at 120 volts, 15 amps. Ninja publishing the amperage is useful — check it against whatever else runs on the same kitchen circuit before you plug this in beside a kettle.
The honest part: what Ninja does not publish
This oven has real gaps in its published data. Naming them takes one line each.
- Which state the exterior dimensions describe. Ninja gives one set — 19.13 x 10.2 x 18.43 in — with no indication whether it is the oven flat or flipped. The 10.2-inch figure is narrower than the 12-inch pizza Ninja says it bakes, so the set cannot all be the cooking footprint.
- Interior capacity as a volume. No quarts, litres or cubic feet anywhere official. Ninja states capacity in food: up to 4 lbs of ingredients, a 12-inch pizza, 6 slices of bread, 6 chicken breasts.
- Interior cavity dimensions and maximum usable pan size. Not published. Only the exterior is given.
- The clearance the flip needs. Ninja quantifies the space saved but not the space required to swing the unit up or down.
- Noise level. No dB figure on any official page.
- Preheat time and per-function cook times. Not published.
- Number of rack positions. Not published.
- Whether individual accessories are dishwasher safe. The spec table answers only at product level: “Dishwasher Safe: No.”
- A temperature range on Ninja’s own site. Ninja does not publish one there. The 85-450 °F figure appears on Amazon only — in Ninja’s brand bullet and in Amazon’s own spec field.
- The owner’s manual PDF. Ninja’s support article names the file “SP150Series_IB_MP (3)”, shows the date “AUGUST 26, 2025” without saying what that date marks, and states: “This supports the SP151.” But the attachment is served from a file servlet with no public URL, and the old ninjakitchen.com manual path now redirects to the SharkNinja homepage. The guide is real; it is not a link we can hand you.
Amazon fills one of those gaps with a field worth ignoring: its “Special Feature” tag lists “Adjustable Rack, Auto Cook Menu, Automatic Shut-Off, Large Capacity, Programmable.” That is retailer taxonomy, not a Ninja specification — Ninja describes no auto shut-off on its own page.
What it actually costs to own
Ninja’s own store lists the SP151 at $249.99 as of September 18, 2026, and Amazon’s price moves independently of that. The more interesting number is what the consumables cost, because Ninja sells every single in-box accessory as a separate part:
- Ninja Flip Wire Rack — model 251SH150, $18.99
- Ninja Flip Sheet Pan — model 252SH150, $19.99
- Ninja Flip Air Fry Basket — model 253SH150, $19.99
- Ninja Flip Crumb Tray — model 254SH150, $10.99
Replacing all four in-box pieces costs $69.96 at Ninja’s listed prices — about 28% of the oven’s own $249.99 price. Given “Dishwasher Safe: No,” that is worth knowing before you decide how hard to scrub a warped sheet pan.
And one accessory is sold for this oven but is not on Ninja’s “In the Box” list at all: the Ninja Flip Broil Rack, model 636SH151, $18.99. The oven has a broil function; the rack Ninja sells under the same product page is a separate purchase.
Warranty is One (1) Year Limited on Ninja’s page. Amazon never prints the term — its field says only “Manufacturer’s warranty can be requested from customer service.” Register with Ninja.
What to buy today
Buy the SP151 if counter space is your binding constraint
This is the whole case for the product, and it is a strong one when it applies. You get a 1,800-watt, 8-function oven that Ninja says bakes a 12-inch pizza and air fries up to 4 lbs of ingredients, and it folds against the backsplash when you are done — Ninja’s 50% space claim. At $249.99 list, with 2,026 Amazon ratings averaging 4.4 stars, a #3 rank in Toaster Ovens and “8K+ bought in past month,” this is not an unproven first-run gamble. The Amazon price moves independently of Ninja’s $249.99 list, so check it first; the button at the top of this page goes to the SP151 listing.
Add the broil rack — Ninja leaves it off the in-box list
Broil is one of the eight functions, and the four accessories Ninja names in the box do not include a broil rack. Ninja sells one separately: the Ninja Flip Broil Rack, model 636SH151, $18.99, listed on the same product page as the oven. Ninja does not describe what the rack does or where it sits — the entry gives a name, a model number and a price, nothing more. We have no verified Amazon ASIN for the part, so that link goes to Ninja’s own store and carries no affiliate tag.
Skip it if any of these three are dealbreakers
Skip it if you need a published interior volume to plan around, because Ninja does not give one. Skip it if a published noise figure is part of your decision, because there is not one. And skip it if you expected to put the trays in the dishwasher: Ninja says “Dishwasher Safe: No,” and each replacement runs $10.99 to $19.99.
The verdict
The SP151 is a straightforward recommendation for one specific kitchen: the one where the counter is the problem. Ninja publishes enough to buy on — 1,800 watts, 19.13 x 10.2 x 18.43 in, 19.84 lbs, a 32-inch cord, eight named functions, four accessories in the box, one year of warranty, $249.99 — and the 4.4-star average across 2,026 ratings means you are not the test group.
What Ninja withholds is four items deep: interior volume, noise level, the clearance the flip needs, and which state that one set of exterior dimensions describes. Together they mean you buy this oven on a footprint claim you cannot fully check against Ninja’s own numbers. That is the one honest reason to hesitate.
The trap to avoid is Amazon’s spec table. Its 17.01 x 15.75 x 7.68 in dimensions conflict with Ninja’s, and its 17.01-cubic-inch capacity field cannot be squared with the dimensions printed beside it — and those are the numbers a rushed buyer reads first. Plan off Ninja’s figures, budget $18.99 for the broil rack Ninja leaves off the in-box list, and go.
Ninja Flip SP151 FAQ
How many watts is the Ninja Flip SP151?
1,800 watts, at 120 volts and 15 amps, per Ninja’s spec table. Ninja also lists “Wattage Peak: 1,800 watts,” so rated and peak draw are the same figure. Amazon’s listing agrees: “Wattage 1800 watts.”
What are the 8 functions on the Ninja Flip?
Air fry, roast, broil, bake, pizza, toast, bagel and dehydrate. Ninja publishes that list word for word on its product page and in the Amazon bullet. There is no reheat, keep-warm or proof mode, despite Amazon’s one-line product highlight naming “reheat.”
How big is the Ninja Flip inside?
Ninja does not publish an interior volume in quarts or litres for the SP151, and it does not publish interior cavity dimensions. It states capacity in food instead: up to 4 lbs of ingredients air fried or roasted, a 12-inch pizza, up to 6 slices of bread, or 6 chicken breasts. Amazon prints a “Capacity 17.01 cubic inches” field, but it contradicts the dimensions Amazon lists beside it, so it is not a usable number.
Are the Ninja Flip accessories dishwasher safe?
Ninja’s spec table answers “Dishwasher Safe: No” for the product and does not break the answer out per accessory. Replacements are sold individually: crumb tray 254SH150 at $10.99, wire rack 251SH150 at $18.99, sheet pan 252SH150 and air fry basket 253SH150 at $19.99 each.
Why do Ninja and Amazon list different dimensions for the SP151?
Ninja publishes “19.13 in L x 10.2 in W x 18.43 in H.” Amazon’s catalogue lists “17.01″D x 15.75″W x 7.68″H” for the same ASIN. They cannot both describe the same object, and Amazon’s set also sits next to a “Capacity 17.01 cubic inches” field its own dimensions contradict: 17.01 x 15.75 x 7.68 in works out to about 2,058 cubic inches. Ninja built the oven, so measure against Ninja’s figures — and note that Ninja does not say whether its numbers describe the oven flat or flipped up.
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