The standard microwave reheats leftovers but stops short of turning out a crispy chicken wing or a properly roasted vegetable medley. An all-in-one microwave oven bridges that gap, packing air frying, convection baking, broiling, and grilling into the same footprint as a standard countertop unit. Suddenly your countertop appliance does the work of four, and the question shifts from “should I buy one” to “which one handles every mode without compromise.”
I’m Min — the co-founder and writer behind Gadgets Feed. After cross-referencing inverter performance, real turntable diameters, and the number of usable air fry presets across dozens of spec sheets and verified buyer reports, I’ve filtered nine models that genuinely deliver on the all-in-one promise.
This guide breaks down the critical differences in heating methods, interior capacity, and control interfaces so you can confidently choose the best all-in-one microwave oven for your kitchen setup and cooking style.
How To Choose The Best All-In-One Microwave Oven
The term “all-in-one” can mean anything from a microwave with a separate grill element to a full four-in-one system with convection, broiler, and air fryer. Nailing your choice comes down to three factors: the core heating technology, the usable interior space, and how you interact with the controls every day.
Heating Technology: Inverter vs. Traditional vs. Convection
Standard microwaves pulse power on and off, which creates hot and cold spots. Inverter technology delivers a continuous stream of power, so delicate foods like fish or custards heat evenly without rubbery edges. Convection adds a fan and heating element for baking and roasting, while a dedicated grill element adds browning. Models with both inverter and convection — like the top-tier Panasonic and Toshiba units — cover the widest range of cooking tasks.
Real Capacity: Turntable Diameter and Interior Height
Cubic footage is a starting point, but a 12.4-inch turntable fits a 12-inch pizza while a 10-inch turntable does not. Interior height determines whether a 3-quart casserole dish or a whole chicken stands upright. Always check the turntable diameter and the cavity height rather than relying solely on the advertised capacity number.
Control Interface: Touchscreen, Knob, or Jog Dial
A responsive touchscreen with a color display makes selecting air fry presets intuitive, but some users prefer a physical jog dial for adjusting cook time mid-cycle. Models with dedicated shortcut buttons for common tasks (reheat pizza, melt butter) reduce daily friction. Look for a control layout that matches how often you plan to use non-microwave modes — more modes means more menus to navigate.
Quick Comparison
On smaller screens, swipe sideways to see the full table.
| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Panasonic HomeChef 4-in-1 | Premium | App-guided multi-cooking | 1000W Inverter + Convection | Amazon |
| Breville BMO870BSS Combi Wave 3-in-1 | Premium | Element IQ precision cooking | 1200W Smart Algorithms | Amazon |
| Toshiba OptiChef PRO MAX | Premium | Color screen & Alexa integration | 1100W Origin Inverter + Convection | Amazon |
| Panasonic NN-SN97JS Cyclonic Inverter | Premium | Large family capacity | 1250W Inverter + 16.5″ Turntable | Amazon |
| Toshiba ML2-EC10SA(BS) 8-in-1 | Mid-Range | Compact footprint, large 12.4″ turntable | 1000W + Air Fry / Broil / Convection | Amazon |
| GE 2.0 Cu. Ft. Countertop | Mid-Range | Extra-large 2.0 cu. ft. cavity | 1200W with Sensor Cooking | Amazon |
| BLACK+DECKER 5-in-1 | Mid-Range | Budget-friendly multi-function | 900W + 5-in-1 Cooking | Amazon |
| Frigidaire 1.2 cu ft Combo-Fry | Mid-Range | Bake, roast & air fry on a budget | 1500W Convection + 1000W Oven | Amazon |
| Emerson MWG1191SB | Budget | Entry-level microwave + grill | 1100W with Built-in Grill | Amazon |
In‑Depth Reviews
1. Panasonic HomeChef 4-in-1 Countertop Microwave Air Fryer Combo
Panasonic’s HomeChef 4-in-1 is the most complete all-in-one package on this list, combining microwave, air fryer, convection oven, and broiler inside a 1.2 cu. ft. footprint. The 1000W Inverter delivers precise, continuous power that prevents the dried-out edges common with pulsed microwaves — particularly noticeable when reheating saucy leftovers or defrosting fish. The 14.2-inch turntable handles a 12-inch pizza without scraping the walls, and the included air fry basket and enamel tray cover the most common cooking modes out of the box.
The Panasonic Kitchen+ app integration is the standout feature: you select a recipe on your phone, and the oven automatically configures the correct power levels, time, and mode sequence. It reduces guesswork for multi-stage dishes like roasted chicken with vegetables where you need microwave speed followed by convection browning. The touchscreen interface has a learning curve, but once you memorize the key paths — or rely on the presets — daily operation becomes straightforward.
Build quality is consistent with Panasonic’s reputation. The stainless steel interior resists staining, and the child lock can be disabled permanently (though it resets after a power outage, a common frustration noted by users). The only real trade-off is the air fryer’s three temperature settings (400–425°F), which limits fine-tuning for delicate items like spring rolls. If you want the widest range of cooking modes with app-driven convenience, this is the unit to beat.
Why it’s great
- Inverter technology provides even, non-pulsed heating for delicate foods
- App integration automates multi-stage recipes
- Four cooking modes (microwave, air fry, convection, broil) in one compact unit
Good to know
- Air fryer has only three temperature options
- Touchscreen interface requires some initial familiarization
- Child lock resets after power loss
2. Breville BMO870BSS Combi Wave 3-in-1
Breville’s Element IQ system is the brain of the Combi Wave, dynamically steering power between microwave, convection, and grill elements to create a tailored cooking environment. It is not just a microwave with a fan — the smart algorithms decide when to pulse the grill element and when to engage the convection fan, which makes a genuine difference for items like frozen chicken wings that need fast microwave heating followed by crisp browning. The Fast Combi mode is especially useful: it cuts total cook time nearly in half compared to a standard convection oven while still producing a browned exterior.
The physical controls are where Breville excels. The jog dial lets you adjust cook time and power level mid-cycle without digging through menus, and the “A Bit More” button adds a percentage-based time extension — far more precise than the standard 30-second add found on most microwaves. The soft-close door is noticeably quieter than any other unit here, and the 50% quieter operation makes it a strong candidate for open-concept kitchens where microwave beeps travel.
On the downside, the 1.1 cu. ft. capacity and 12.4-inch turntable are on the smaller side for a premium model. A standard 9×13 baking dish fits, but a full-size sheet pan does not. Some users report that the grill function does not provide the same direct heat as a standalone toaster oven for tasks like toasting bread. If you prioritize intuitive controls and silent operation over raw interior volume, the Combi Wave justifies its premium positioning.
Why it’s great
- Element IQ steers power between microwave, convection, and grill for optimized results
- Jog dial and “A Bit More” button provide intuitive mid-cycle control
- Soft-close door and quiet operation suit open kitchens
Good to know
- 1.1 cu. ft. interior is smaller than similarly priced competitors
- Grill function doesn’t match a standalone toaster oven for toasting
- Reliability reports are mixed, with some users experiencing door mechanism issues
3. Toshiba OptiChef PRO MAX Air Fryer Combo
The OptiChef PRO MAX stands apart with its 2.4-inch color screen and responsive touch interface, which makes navigating air fry, convection, and microwave modes feel closer to a smartphone than a kitchen appliance. The Origin Inverter ensures continuous power delivery, and the built-in humidity sensor adjusts cook time and power automatically to prevent over-drying — a real advantage for reheating rice dishes or steamed vegetables that typically suffer in a standard microwave.
Capacity is a strong point here. The 1.3 cu. ft. cavity and 13.2-inch turntable accommodate a whole chicken or a 13-inch pizza, and the ceramic enamel interior cleans up faster than stainless steel. The Cheffry Plus top fan and heating element replicate an air fryer oven design, circulating hot air more evenly than rear-fan units for crispier results on frozen fries and chicken nuggets.
The 1100W microwave output is slightly lower than some competitors (the Panasonic 1250W unit hits harder), and a few users report that the microwave mode requires slightly longer cook times than their previous 1200W model. The color screen is bright and responsive, but it does attract fingerprints and smudges that require occasional wiping. If you value a modern interface, smart-home integration, and a spacious interior, the OptiChef PRO MAX is a compelling mid-premium option.
Why it’s great
- Color touchscreen with intuitive menu navigation
- Humidity sensor prevents over-drying by adjusting power automatically
- Ceramic enamel interior is easier to clean than stainless steel
Good to know
- 1100W output may require slightly longer cook times than 1200W+ units
- Screen attracts fingerprints and needs frequent wiping
- Air fryer performance, while good, doesn’t match dedicated countertop air fryers
4. Panasonic Cyclonic Wave Inverter Microwave NN-SN97JS
If your priority is pure microwave performance with the largest capacity available, the NN-SN97JS is the definitive choice. The 1250W Cyclonic Inverter delivers the highest continuous power on this list, and the 16.5-inch turntable is the largest of any countertop model surveyed — it comfortably fits a 15-pound turkey or a 14×10-inch lasagna pan. The Cyclonic Wave technology shapes the microwave energy to wrap around food rather than just bombarding it from one angle, resulting in more uniform heating across large, dense items like casseroles.
The Genius Sensor is genuinely useful for day-to-day reheating. It measures steam output and automatically adjusts time and power, so a plate of leftover pasta comes out at the same temperature as a bowl of soup without manual power-level selection. The Turbo Defrost function reduces defrost time by up to 40% compared to standard defrost modes, and the Inverter’s low-power setting at 10% output means you can gently soften butter or melt chocolate without scorching.
This model does not include air frying or convection modes — it is a pure microwave with enhanced Inverter technology. If you need baking or air frying, the HomeChef is a better fit. The door button mechanism has received mixed feedback; some users report it requires a firm press or occasionally fails on the first try. For those who want the most powerful and spacious microwave that still delivers Inverter-grade even heating, the NN-SN97JS is unmatched.
Why it’s great
- 1250W Cyclonic Inverter for the most powerful and even heating
- 16.5-inch turntable accommodates extra-large dishes and whole poultry
- Genius Sensor automates time and power based on steam output
Good to know
- No air fry, convection, or grill functions — pure microwave only
- Door push-button mechanism can be temperamental over time
- Child lock resets after power loss
5. Toshiba 8-in-1 Air Fryer Combo ML2-EC10SA(BS)
The 8-in-1 Toshiba delivers an impressive feature set — microwave, air fry, convection bake, broil, combo, low temp cooking, odor removal, and defrost — at a price point that undercuts most competitors with similar versatility. The 12.4-inch position memory turntable is a thoughtful addition: it remembers the last position when you open the door mid-cycle, which reduces the chance of tipping over tall containers. The 1.0 cu. ft. capacity is modest, but the removable turntable accommodates a 12-inch pizza or an 8×4-inch casserole dish.
The Odor Removal mode is genuinely useful after cooking strong-smelling foods like fish or curry. It runs a dedicated fan and low-heat cycle that neutralizes lingering smells in about 10 minutes — a feature absent from most comparable units. The black stainless steel finish resists fingerprints better than standard stainless, though the single knob controller requires extra scrolling when setting precise times and temperatures, which slows down the cooking process compared to dedicated number pads.
Air fry performance is solid for frozen foods: fries and chicken nuggets come out crispy, though fresh breaded items may need a shake mid-cycle for even browning. The broiler function browns cheese toppings evenly, and the convection bake works well for small sheet-pan meals. Some users note steam buildup during extended cooking, but the stainless steel interior wipes clean without residue. If you want the widest array of cooking modes without stepping into premium pricing, this Toshiba delivers the best balance.
Why it’s great
- 8 cooking modes including odor removal and low-temp cooking
- Position memory turntable prevents tipping when door is opened mid-cycle
- Black stainless steel resists fingerprints
Good to know
- Single knob controller adds extra steps for setting time and temperature
- 1.0 cu. ft. capacity is on the smaller side for a multi-function unit
- Air fryer requires a mid-cycle shake for even browning on fresh items
6. GE Countertop Microwave Oven 2.0 Cu. Ft.
The GE 2.0 cu. ft. model is the largest standard countertop microwave on this list, and its 1200W output ensures that the extra interior space doesn’t come at the cost of slow heating. The sensor cooking controls automatically adjust time and power based on the steam released during cooking, which is particularly effective for large batches of vegetables or casseroles where manual settings often lead to overcooked edges and cold centers.
Weight and time defrost are both present, and the weight defrost mode — where you enter the food weight and the microwave calculates the optimal defrost power and duration — is accurate for ground meat, chicken breasts, and fish fillets. The Instant On express controls let you add 30 seconds at full power with a single touch, and the child lock requires a two-step press sequence that prevents accidental activation by young children.
This is a pure microwave without air frying or convection modes. If you solely need a massive cavity that fits a 15-pound turkey or a 10×15-inch baking dish, the GE is the right call. The interior is advertised as stainless steel, but multiple user reports indicate it is not — it is a painted or coated surface that may scratch more easily. The unit also requires significant countertop depth (19.7 inches from front to back), so measure your available space before purchasing.
Why it’s great
- 2.0 cu. ft. interior is the largest capacity on this list
- 1200W power heats quickly even with large loads
- Sensor cooking and weight defrost automate common tasks
Good to know
- No air fry, convection, or grill modes
- Interior surface is painted, not stainless steel as some descriptions suggest
- Requires significant counter space — measure depth before buying
7. BLACK+DECKER 5-in-1 Microwave Oven ES9P032NA
The BLACK+DECKER 5-in-1 delivers five cooking modes — microwave, air fry, bake, roast, and combi (grill/convection) — in a compact 0.9 cu. ft. package that fits easily on cramped countertops. The 11 preset air fry menus cover common frozen foods (fries, chicken wings, fish sticks, spring rolls) so you don’t have to guess time and temperature. The 900W output is lower than the competition, but for small households or single users, the trade-off in cook time is acceptable given the savings.
Construction quality is decent for the price tier. The stainless steel exterior resists fingerprints, and the included bake tray and grill rack cover the basic modes without requiring additional purchases. The child lock engages by pressing the stop button for three seconds, which is simpler than the multi-step locks on premium models. The auto defrost mode works well for small portions but struggles with larger items due to the lower wattage.
The main compromise is the interior size. At 0.9 cu. ft., it will not fit a 12-inch pizza flat — you will need to break it into slices or use a smaller frozen pizza. The air fry function works well for single servings but produces less consistent results when the basket is full. Users also note the door opens differently from standard microwaves, which may require pulling the unit forward initially to access the cavity fully. For a budget-friendly entry into the all-in-one category, this BLACK+DECKER is a solid starting point.
Why it’s great
- 11 preset air fry menus simplify cooking frozen foods
- Compact footprint (0.9 cu. ft.) fits small kitchens and dorms
- Child lock engages with a simple three-second button press
Good to know
- 0.9 cu. ft. interior cannot fit a 12-inch pizza flat
- 900W output extends cook times compared to larger units
- Door opens differently, may require pulling unit forward to access
8. Frigidaire 1.2 cu ft Combo-Fry Microwave
Frigidaire’s Combo-Fry microwave brings bake, roast, convection, and air fry functions into a 1.2 cu. ft. body that feels larger than its advertised capacity suggests. The 1500W convection element is the highest convection wattage on this list, which translates to faster preheating and better browning for roasted vegetables and baked potatoes. The 1000W oven mode handles microwave tasks with authority, and the 900W microwave output is adequate for standard reheating and defrosting.
The five one-touch cook menus — potato, popcorn, beverage, reheat, and frozen dinner — cover the most frequently used presets without overwhelming the interface. The included air frying kit (basket and bake plate) works well for frozen fries and chicken tenders, though the air fry mode is slower than dedicated countertop air fryers and produces slightly less crisp results on fresh breaded items. The stainless steel finish wipes clean easily, and the interior light is bright enough to check food without opening the door.
Noise level is the most common complaint: the convection fan is noticeably louder than the microwave fan, and the unit emits a persistent hum during convection cooking that some users find distracting in open-concept kitchens. A subset of user reports mention the unit failing to heat after a few weeks, which suggests variable quality control. If you want convection baking and roasting at a budget-friendly price, this Frigidaire offers good value, but the reliability concern makes a warranty extension worth considering.
Why it’s great
- 1500W convection element heats faster than most competitors
- Bake, roast, air fry, and convection modes in a 1.2 cu. ft. body
- One-touch presets for common foods reduce menu navigation
Good to know
- Convection fan is noticeably loud during operation
- Air fry mode is slower than dedicated air fryers
- Some user reports of units failing to heat after short use
9. Emerson MWG1191SB 1.1 Cu. Ft. Microwave with Grill
The Emerson MWG1191SB is the most affordable entry point into the all-in-one category, trading air frying and convection for a simpler proposition: a 1100W microwave with a dedicated built-in grill element. The grill function is ideal for browning casseroles, crisping the top of baked pasta, or adding grill marks to sandwiches and flatbreads — tasks a standard microwave cannot handle. The three combo power levels let you mix microwave and grill power, which helps cook thicker items like stuffed chicken breasts through to the center while browning the exterior.
The retro control panel with chrome handle and vintage-style buttons has a distinct aesthetic that stands out in a sea of stainless steel appliances. The 1.1 cu. ft. cavity and removable glass turntable fit standard dinner plates and medium casserole dishes, though the 1100W output runs hotter than expected — user reports indicate you may need to reduce cook times by 10–15% compared to your previous microwave. Nine preset cooking options cover popcorn, pizza, vegetables, and beverages, and the child lock provides basic safety protection.
Reliability is the main concern here. Several user reviews report condensation buildup and unit failure within a few months of use, suggesting inconsistent manufacturing quality. The grill function also generates significant internal moisture, which may contribute to the condensation issue. If you just want a microwave that can also brown the top of a casserole without spending on a full convection oven, the Emerson is a functional budget option. For regular multi-mode cooking, the BLACK+DECKER or Frigidaire offer better long-term value.
Why it’s great
- Built-in grill element browns and crisps without needing a separate appliance
- 3 combo power levels mix microwave and grill for thicker foods
- Retro design with chrome handle stands out from standard microwaves
Good to know
- Reliability reports are mixed, with some units failing within months
- Grill function creates condensation that may contribute to moisture issues
- 1100W output runs hotter than expected — adjust cook times downward
FAQ
Can an all-in-one microwave oven replace a dedicated air fryer or convection oven?
What does Inverter technology actually do differently from standard microwave cooking?
How do I clean the interior of a microwave with air fry, convection, and grill modes?
Is a 900W all-in-one microwave too underpowered for family cooking?
Final Thoughts: The Verdict
For most users, the best all-in-one microwave oven winner is the Panasonic HomeChef 4-in-1 because it combines Inverter-grade microwave performance with air frying, convection, and broiling in a space-efficient design, backed by app integration that simplifies multi-stage recipes. If you want the most intuitive physical controls and quieter operation, grab the Breville Combi Wave 3-in-1. And for budget-conscious buyers who still need air fry, bake, and convection modes, the Toshiba 8-in-1 delivers the best value without sacrificing versatility.









