Main trade-off
Breville Smart Oven Air Fryer
No integrated food probe or probe-driven stopping is included.
Head-to-head
Breville BOV860 Air Fryer vs Ninja DT551 Pro Cook: Ninja ends a cook from its probe, Breville adds slow cooking in less height
The short answer
Choose Breville BOV860 for a lower six-slice oven with Slow Cook and conventional time-and-temperature control. Choose Ninja DT551 when an integrated food thermometer, nine-slice toast and supported two-level cooking are more useful. Both air fry, but only the selected Ninja package can end a supported cook from its connected probe.
Before you choose
The reasoning and the trade-offs
A food probe measures something the oven thermostat cannot
DT551's included thermometer reads the food itself and can end a supported cook from that reading. BOV860's oven-temperature control does not supply that internal-food feedback, so a separate thermometer remains your own monitoring tool.
What this is based on
Ninja's manual describes plugging in the probe, selecting doneness and automatic heating shutoff. BOV860 lists no integrated food probe.
Main trade-off
Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
The body is 2.45 inches taller.
Breville Smart Oven Air Fryer
- Choose it for
- Keep the body height to 10.9 inches
- Use the dedicated Slow Cook mode
- Main trade-off
- No integrated food probe or probe-driven stopping is included.
Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
- Choose it for
- Cook suitable proteins with the included Pro Cook thermometer
- Use two supplied racks and pans for supported two-level recipes
- Main trade-off
- The body is 2.45 inches taller.
About this comparison
Breville BOV860 and Ninja DT551 compared for roast doneness, two-level cooking, toast loads and height. Pick the oven that fits your meal routine.
Choose Breville BOV860 for a lower six-slice oven with Slow Cook and conventional time-and-temperature control. Choose Ninja DT551 when an integrated food thermometer, nine-slice toast and supported two-level cooking are more useful. Both air fry, but only the selected Ninja package can end a supported cook from its connected probe.
Winner by situation
Start with what you need it to do
I want the oven to stop from a food-temperature target
Only DT551 includes the connected probe and supported automatic stopping.
- Breville Smart Oven Air Fryer
- Not suitable
- Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
- Better fit
I regularly toast eight slices
Eight exceeds BOV860's six-slice rating and lies within Ninja's nine-slice rating.
- Breville Smart Oven Air Fryer
- Caution
- Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
- Better fit
I want a dedicated Slow Cook mode
BOV860 lists Slow Cook. DT551's ten-function list does not.
- Breville Smart Oven Air Fryer
- Better fit
- Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
- Not suitable
My preferred appliance body height is below 12 inches
BOV860 is 10.9 inches tall. DT551 is 13.35, before additional clearance.
- Breville Smart Oven Air Fryer
- Better fit
- Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
- Not suitable
Two dishes need separate cooking temperatures at once
Both have one cooking cavity and cannot provide two independent temperature zones.
- Breville Smart Oven Air Fryer
- Not suitable
- Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
- Not suitable
What matters in practice
The differences that matter
A food probe measures something the oven thermostat cannot
DT551's included thermometer reads the food itself and can end a supported cook from that reading. BOV860's oven-temperature control does not supply that internal-food feedback, so a separate thermometer remains your own monitoring tool.
How we reached this conclusion
Ninja's manual describes plugging in the probe, selecting doneness and automatic heating shutoff. BOV860 lists no integrated food probe.
The breakfast capacity gain is three slices
DT551's nine-slice rating is 50% above BOV860's six-slice rating. That can avoid a second nominal load for seven to nine slices, without establishing evenness or toast quality.
How we reached this conclusion
9 - 6 = 3 slices. 3 / 6 = 50%. Actual fit depends on bread dimensions.
Two cooking levels still share one oven environment
DT551 supplies two racks and pans and a supported two-level setting. That expands compatible same-cycle cooking, but it does not create independently controlled chambers for two recipes needing different temperatures.
How we reached this conclusion
DT551 is a single-cavity oven. The manual's 2 LEVEL button changes supported rack recommendations, rather than providing separate cavity temperatures.
Choice A
Breville, BOV860BSS1BUS1
Smart Oven Air Fryer
A medium Breville balances eleven programs, a 13-inch pizza cavity and vigorous super-convection airflow.
- Best matched use
- Keep the body height to 10.9 inches
Checked facts
- Integrated food thermometer: None included
- Toast capacity: 6 slices
- Supplied racks and pans: 1 wire rack and roasting pan
- Body height: 10.9 inches
Choice B
Ninja, DT551
Prestige Smart XL Air Fryer Countertop Oven Pro Cook
Ninja pairs its two-level XL oven with a Pro Cook system that tracks food temperature at the appliance.
- Best matched use
- Cook suitable proteins with the included Pro Cook thermometer
Checked facts
- Integrated food thermometer: Wired Pro Cook thermometer
- Toast capacity: 9 slices
- Supplied racks and pans: 2 wire racks and 2 sheet pans
- Body height: 13.35 inches
Meaningful differences
What changes the fit
| What changes | Breville Smart Oven Air Fryer | Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook | Why it matters |
|---|---|---|---|
| Integrated food thermometer | None included | Wired Pro Cook thermometer | Ninja can monitor food temperature and stop heating in its supported thermometer workflow. |
| Toast capacity | 6 slices | 9 slices | Ninja adds three nominal toast positions. |
| Supplied racks and pans | 1 wire rack and roasting pan | 2 wire racks and 2 sheet pans | DT551 arrives equipped for its supported two-level cooking modes. |
| Body height | 10.9 inches | 13.35 inches | The taller Ninja needs more vertical space before operating clearance is added. |
| Dedicated Slow Cook | Yes | Not in the listed functions | Breville provides the documented long-cook mode. |
| Dedicated Dehydrate | Not in the listed functions | Yes | Ninja adds a named dehydration mode. |
What you give up
Every choice has a cost
If you choose Breville Smart Oven Air Fryer
- Six-slice toast capacity is lower than Ninja's nine-slice rating.
If you choose Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
- Its ten listed functions omit a dedicated Slow Cook mode.
Recommendation switch
The decision flips if...
Probe-driven doneness is my priority
Choose Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook. DT551 includes the integrated thermometer and supported automatic stopping.
A lower body and Slow Cook matter more
Choose Breville Smart Oven Air Fryer. BOV860 is shorter and provides Slow Cook.
I need independent temperatures for two dishes
Choose neither. Two levels in one cavity are not two independently controlled ovens.
What matters in practice
How to make the call
Decide whether roast monitoring matters
DT551's probe is a useful distinction for suitable proteins because it measures inside the food rather than only controlling chamber heat. Correct insertion and an independent food-safety check still matter. BOV860 is a reasonable fit when you already manage doneness with your own thermometer.
Match the oven to a normal load
The Ninja package covers larger advertised toast loads and supported two-level recipes. Breville offers a shorter body and a dedicated Slow Cook mode. These are different practical benefits, so think about your usual dinner or breakfast rather than ranking the ovens by function count.
Leave enough room for the whole appliance
The 2.45-inch body-height difference is clear, but neither height is an installation clearance. Measure the intended position with ventilation, the door opening and safe pan removal in mind. A low shelf can make a technically fitting appliance awkward or unsafe to operate.
What this comparison cannot tell you
- No cooking, temperature-accuracy or energy tests were performed. A connected probe does not remove supervision or the need to confirm safe food temperature.
What the facts say
What the comparison shows
Useful conclusions from the current countertop ovens comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Breville Smart Oven Air Fryer |
|
| |
| Ninja Prestige Smart XL Air Fryer Countertop Oven Pro Cook |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Breville Smart Oven Air Fryer
Keep the body height to 10.9 inches
See price & reviews on AmazonNinja Prestige Smart XL Air Fryer Countertop Oven Pro Cook
Cook suitable proteins with the included Pro Cook thermometer
See price & reviews on AmazonLinks open in a new tab.