The catch
Breville Smart Oven Pro
When stored, it stays spread across the counter.
Side by side
Breville Smart Oven Pro BOV845 vs Ninja Flip SP151: Breville slow-cooks in a fixed position, Ninja folds away after cooling
Quick verdict
A stationary convection oven with a dedicated Slow Cook function and interior light is what Breville BOV845 offers. Ninja Flip SP151 is the better choice if air frying, dehydration and flipping the cooled oven upright for storage matter more. They overlap broadly in everyday baking, but their storage routines and specialist cooking modes point to different kitchens.
Before you buy
Why, and what it costs you
Saving space in storage is not saving space while cooking
Ninja says flipping the oven up reduces occupied counter space by 50%. The oven still has to be lowered into its working position and cooled before storage, so counters used for other jobs between meals are where the benefit mainly lands.
Where this comes from
The 50% claim from the manufacturer is explicitly about the flipped-up position. Required operating footprint and heat clearances are not what it describes.
The catch
Ninja Flip Toaster Oven and Air Fryer
A dedicated Slow Cook mode is not listed.
Breville Smart Oven Pro
- Why pick it
- Long low-temperature recipes get Slow Cook
- A conventional, stationary oven with an interior light suits you
- The catch
- When stored, it stays spread across the counter.
Ninja Flip Toaster Oven and Air Fryer
- Why pick it
- Included Air Fry and Dehydrate modes get used
- Flipping the cooled oven up gives part of the counter back
- The catch
- A dedicated Slow Cook mode is not listed.
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What this page compares
Breville BOV845 and Ninja Flip SP151 face off on slow cooking, air frying, dehydration and freeing counter space between meals.
A stationary convection oven with a dedicated Slow Cook function and interior light is what Breville BOV845 offers. Ninja Flip SP151 is the better choice if air frying, dehydration and flipping the cooled oven upright for storage matter more. They overlap broadly in everyday baking, but their storage routines and specialist cooking modes point to different kitchens.
Which one fits
Pick the situations that sound like you
After cooking, I need the counter clear for food prep
Once cooled, SP151 can be flipped up. BOV845 keeps its normal footprint.
- Breville Smart Oven Pro
- Caution
- Ninja Flip Toaster Oven and Air Fryer
- Better fit
A dedicated Slow Cook mode is what I want
That mode is documented for BOV845 and not for SP151.
- Breville Smart Oven Pro
- Better fit
- Ninja Flip Toaster Oven and Air Fryer
- Not suitable
I want a matching mode and an air-fry basket supplied with it
The basket and Air Fry function come with SP151.
- Breville Smart Oven Pro
- Not suitable
- Ninja Flip Toaster Oven and Air Fryer
- Better fit
Dehydrating food is in my plans
Dehydrate is on SP151's list but not BOV845's.
- Breville Smart Oven Pro
- Not suitable
- Ninja Flip Toaster Oven and Air Fryer
- Better fit
I need a built-in light for food checks
An interior light is explicitly included on BOV845. SP151 does not list one.
- Breville Smart Oven Pro
- Better fit
- Ninja Flip Toaster Oven and Air Fryer
- Caution
In practice
Differences you will notice
Saving space in storage is not saving space while cooking
Ninja says flipping the oven up reduces occupied counter space by 50%. The oven still has to be lowered into its working position and cooled before storage, so counters used for other jobs between meals are where the benefit mainly lands.
How we worked this out
The 50% claim from the manufacturer is explicitly about the flipped-up position. Required operating footprint and heat clearances are not what it describes.
Slow cooking and dehydration pull the choice in opposite directions
SP151 lists Dehydrate and Air Fry, while BOV845 has a documented ten-hour Slow Cook workflow. Replacing a slow cooker is a different requirement from drying fruit or air frying snacks.
How we worked this out
Ninja lists Air Fry and Dehydrate and no Slow Cook mode. On Breville's list, Slow Cook runs for up to 10 hours and is followed by Keep Warm.
Air frying here affects a mode as well as a supplied tool
A basket for its Air Fry mode comes with SP151. Having a convection fan on BOV845 does not mean this selected package contains the same named setting and basket.
How we worked this out
Air Fry and an included basket are listed by Ninja. Neither appears among the modes and accessories listed for Breville BOV845.
Option A
Breville, BOV845BSSUSC
Smart Oven Pro
If you can do without air fry, this oven’s ten clear presets and convection make it a strong choice for baking and roasting.
- Best for
- Long low-temperature recipes get Slow Cook
Facts we checked
- Storage arrangement: Stationary countertop body
- Dedicated Air Fry: No
- Dedicated Slow Cook: Yes, up to 10 hours before Keep Warm
- Dedicated Dehydrate: No listed mode
Option B
Ninja, SP151
Flip Toaster Oven and Air Fryer
Once cool, this shallow eight-mode oven tips up on end, and the counter space in front of the backsplash is yours again.
- Best for
- Included Air Fry and Dehydrate modes get used
Facts we checked
- Storage arrangement: Flips upright when not in use
- Dedicated Air Fry: Yes, basket included
- Dedicated Slow Cook: No listed mode
- Dedicated Dehydrate: Yes
Spec by spec
Where they really differ
| Spec | Breville Smart Oven Pro | Ninja Flip Toaster Oven and Air Fryer | In practice |
|---|---|---|---|
| Storage arrangement | Stationary countertop body | Flips upright when not in use | How much counter area stays occupied between meals is something SP151 changes. |
| Dedicated Air Fry | No | Yes, basket included | The named mode and matching basket come from Ninja. |
| Dedicated Slow Cook | Yes, up to 10 hours before Keep Warm | No listed mode | The documented long-cooking workflow comes from Breville. |
| Dedicated Dehydrate | No listed mode | Yes | The named drying mode is Ninja's. |
| Pizza sizing guidance | 13-inch pizza pan included | 12-inch pizza capacity | Compare your usual pizza and pan size with what each model takes. |
| Interior light | Included | No interior light listed | A built-in light for viewing food during cooking is documented by Breville. |
Trade-offs
What each pick costs you
With Breville Smart Oven Pro
- A dedicated Air Fry or Dehydrate mode is not listed.
With Ninja Flip Toaster Oven and Air Fryer
- Space is saved by flipping up only in storage after cooling, and not in the space needed during cooking.
Change of plan
When the answer changes
What matters most is a dedicated Slow Cook workflow
Go with Breville Smart Oven Pro. Up to ten hours followed by Keep Warm is documented for BOV845.
What matters most is air frying and storing upright
Go with Ninja Flip Toaster Oven and Air Fryer. Air Fry and a flip-up storage design are both part of SP151.
I need Slow Cook and Dehydrate together in whichever model I select
Neither model fits. Of these two, neither lists both functions together.
Decision guide
How to decide
Pick Breville BOV845 for a stationary convection oven that has a dedicated Slow Cook function and an interior light. Pick Ninja Flip SP151 if you care more about air frying, dehydration and flipping the cooled oven upright to store it. Everyday baking is broadly shared, yet the storage routine and the specialist cooking modes suit different kitchens.
Consider what happens between cooking sessions
The SP151 appeals when the same counter also handles chopping, packing lunches or serving, because its flip-up arrangement releases space after cooling. With a permanent location for the oven and little need for that area back, the storage mechanism may add less value.
Pick the specialist mode that takes over another task
For long low-temperature recipes, the BOV845's Slow Cook is a concrete reason to choose it. The SP151 supplies Air Fry and Dehydrate instead. Both bake and toast, so the functions beyond those shared basics are more likely to decide which oven stays useful.
Consider movement and pan access
Moving into and out of its storage position takes enough room for a flip-up oven, while a stationary oven needs space for the door and for removing pans safely. Follow the installation instructions for both, and check your baking dishes instead of judging interior fit from an exterior photo.
What this page can’t tell you
- Cooking quality, drying performance and energy use have not been measured by us. The storage-space reduction Ninja states says nothing about safe cooking clearance.
By the numbers
What the data shows
What we found across the countertop ovens we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Breville Smart Oven Pro |
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| |
| Ninja Flip Toaster Oven and Air Fryer |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Breville Smart Oven Pro
Long low-temperature recipes get Slow Cook
See price & reviews on AmazonNinja Flip Toaster Oven and Air Fryer
Included Air Fry and Dehydrate modes get used
See price & reviews on AmazonEach link opens in a new tab.
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