Bottom line
The Breville Smart Oven Air Fryer Pro is the most versatile, but the Panasonic FlashXpress is the smarter buy for small kitchens and simple meals.
Cooks replacing a full-size oven for small-batch meals.
You only make toast and frozen snacks.
The useful question is not whether a toaster oven has more settings. It is whether the interior, controls, and footprint solve a job your full-size oven handles badly. For the compact-versus-second-oven decision, compare the Panasonic FlashXpress and Breville Smart Oven; for holiday bird capacity, see the electric roaster oven guide.
Published fit data
Measure before you make room.
Interior room and everyday jobs
These are editorial recommendations, not a lab score. Product details and availability can change. Links may earn us a commission without changing what you pay.
| Pick | Why it stands out | |
|---|---|---|
 Video: Breville's own product video 01 Breville Smart Oven Air Fryer Pro Best overall | Excellent temperature control. A true second oven. | Check price on Amazon |
 Video: Panasonic's own product video 02 Panasonic FlashXpress Best compact pick | Very fast toast cycle. Simple controls. | Check price on Amazon |
 03 Cuisinart Custom Classic Best everyday pick | Straightforward and durable. Good everyday performance. | Check price on Amazon |
Will it actually fit?
Dimensions, clearances, and capacity claims come from the manufacturers’ product pages and manuals. “Not published” means the manufacturer did not give that number in the documents checked; we did not measure these ovens. A no for the cabinet question means the published clearance or a safe operating fit cannot be confirmed under an 18-inch upper cabinet.
| Detail | Exterior width × depth × height | Height with door fully open | Manufacturer rear / side clearance | Fits under an 18-inch upper cabinet? | Fits a 9×13 pan? | Fits a 12-inch pizza? | Bread slices |
|---|---|---|---|---|---|---|---|
| Breville Smart Oven Air Fryer Pro | 21.4 × 17.3 × 12.7 in (W × D × H) | Not published | Rear: Not published; sides: 4 in; overhead: 6 in | No — 12.7 in plus 6 in published overhead clearance is 18.7 in | Yes — 9 x 13-inch broiling rack and enamel roasting pan published | Yes — 13-inch pizza pan published | 9 |
| Panasonic FlashXpress | 13 × 12 × 10.2 in (W × D × H) | Not published | Rear: 4–6 in from wall or object; sides: more than 4 in; one side free; overhead: not published; do not use near a wall or cabinet | No — the manual says not to use the toaster oven near a wall or cabinet | No — manufacturer publishes a 9.3 x 9.3-inch oven tray | No — manufacturer publishes capacity up to a 9-inch pizza | 4 |
| Cuisinart Custom Classic | 16 × 12 × 9 in (W × D × H) | Not published | Rear: Not published; sides: Not published; overhead: Not published | No — manufacturer does not publish operating clearance or door-open height, so a safe cabinet fit cannot be verified | No — manufacturer publishes an 11-inch pizza capacity, not 9 x 13 | No — manufacturer publishes an 11-inch pizza capacity | 6 |
Manufacturer sources: Breville Smart Oven Air Fryer Pro manufacturer source · Breville Smart Oven Air Fryer Pro manufacturer manual · Panasonic FlashXpress manufacturer source · Panasonic FlashXpress manufacturer manual · Cuisinart Custom Classic manufacturer source
What we like
- Excellent temperature control
- A true second oven
What to know
- Large footprint
Give the oven a job before it gets a shelf
Pick the model around the food you make most: quick toast, a tray of vegetables, or small-batch baking. Extra modes matter less than enough interior height and a location where the door can open comfortably.
Questions, answered
Can a toaster oven fit a 9×13 pan?
Only the Breville Smart Oven Air Fryer Pro here is explicitly equipped for it: Breville lists a 9×13 broiling rack and enamel roasting pan. Panasonic publishes a 9.3×9.3-inch tray, and Cuisinart publishes an 11-inch pizza capacity, so neither is a 9×13-pan oven.
Will a toaster oven fit a 12-inch pizza?
Breville publishes a 13-inch pizza pan, so yes. Panasonic publishes a 9-inch pizza capacity and Cuisinart an 11-inch pizza capacity, so no for those two picks.
Where does a toaster oven vent steam and heat?
Use the ventilation openings and the clearances in the manual as the boundary. Breville specifies 4 inches on both sides and 6 inches above; Panasonic says to keep the oven 4 to 6 inches from walls or objects and away from cabinets. Cuisinart does not publish a vent map or operating clearance in its product listing, so do not tuck it under a cabinet based on its 9-inch height alone.
Can a toaster oven replace an oven?
For toast, roasting vegetables, a small chicken, or a tray of cookies, yes. It is not a replacement for a large roast or a holiday baking queue.