Conclusion
The basic BLACK+DECKER at about $99.89 suits households that want plate reheating and manual controls. Households that want automatic time and power adjustment should consider the Toshiba sensor model and check its current price.
3 selected products
Buying by wattage alone can leave you with a microwave that crowds the counter or cannot turn your dinner dish. Before choosing, check these three things, in order

Will it fit your counter with room to breathe?
Choose the installation space first, including ventilation and the open door, before comparing cooking features.
Chefman lists the RJ55-7-V2 at 17.52 inches wide, 12.93 inches deep, and 9.53 inches high. Its compact body makes it a plausible option for an apartment kitchen where the microwave shares a counter with a coffee maker and a cutting board. Those body measurements alone do not establish whether the installation fits. Chefman specifications.
Chefman's installation guidance requires the right side to remain open, at least 3 inches between the other sides and adjacent walls, and at least 12 inches above the oven. That overhead space can rule out a spot beneath a low cabinet even when the appliance itself slides underneath. Follow each model's own instructions; these clearances belong to the Chefman and should not be transferred to another brand. Chefman user guide.
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| If your home … | Our take | What to check |
|---|---|---|
| Has an open counter and mostly small servings | Worth it | Body dimensions plus the model's ventilation space |
| Needs the microwave beneath an upper cabinet | It depends | Required overhead clearance and usable counter depth |
| Has a cramped shelf or enclosed appliance cubby | Only some models | Explicit maker approval for the intended installation |
| Has no location that meets the installation instructions | Skip it | Find a compliant location before ordering |
BLACK+DECKER lists the EM031MB11 on Amazon at 20.6 inches wide, 14.8 inches deep, and 11.8 inches high. It needs more counter space than the Chefman, so outline the body on your counter and consider where the door will swing. Leave yourself a practical place to set down a dish beside it. BLACK+DECKER product details.
Published dimensions need extra attention here. Toshiba's official EM131A5C-BS page gives conflicting exterior sizes, while its Amazon listing gives 20.6 inches wide, 14.6 inches deep, and 11.8 inches high. Chefman's current series manual also gives a different depth from its product page. Confirm the dimensions of the unit being sold before committing to a close fit. The comparison below uses Amazon's listed body dimensions consistently. Toshiba specifications, Toshiba product details, Chefman user guide.
- Measure the available width, depth, and height at the actual location.
- Add the clearances required by that model's installation instructions.
- Check the door swing, handle access, and space for placing a dish.
Will your usual dishes fit, and does the power suit your meals?
Match the microwave to your largest everyday dish, then choose between manual timing and sensor reheating.
Chefman's 0.7 cu. ft., 700-watt model is the compact choice for someone heating modest portions and willing to set the time. BLACK+DECKER's Amazon listing specifies 1.1 cu. ft., 1,000 watts of output, and a removable 12.4-inch turntable. That makes the BLACK+DECKER a practical step up for plate reheating when you want basic controls and a known price. Chefman specifications, BLACK+DECKER specifications.
Toshiba lists 1.2 cu. ft., 1,000 watts, and a 12.4-inch turntable for the EM131A5C-BS. Its distinctive feature is the humidity sensor: Toshiba says it automatically adjusts cooking time and power. Choose it for that convenience when reheating is a frequent task. The stated output and turntable diameter match the BLACK+DECKER, so the Toshiba is not a larger plate platform simply because its capacity number is higher. Toshiba specifications and features.
AI-generated illustration for explanation. Not a specific product.
Measure the dish you actually reach for, including handles and any cover. Turntable diameter is a useful starting point, but it does not describe every part of the cavity or guarantee that a rectangular container can rotate. A deep bowl also needs usable height. Avoid choosing from cubic feet alone when one particular container determines whether the appliance will work for you.
For packaged meals, compare the package's microwave instructions with the oven's stated cooking output. BLACK+DECKER distinguishes its 1,000-watt output from a 1,600-watt input rating on Amazon. Input describes electrical demand; it is not the cooking wattage to use when comparing meal directions. BLACK+DECKER product specifications.
- Measure your widest plate and your most awkward leftover container.
- Compare cooking output rather than electrical input.
- Decide whether you prefer entering a familiar time or using sensor menus.
A sensor can reduce time-setting decisions, but it does not establish that every meal will heat evenly. Treat it as a convenience feature and follow the meal's instructions. Someone who reheats the same small portion each day may get little benefit from extra automation.
Are the controls and cleanup manageable every day?
Prioritize a door you can operate comfortably, useful sound controls, and easy access for wiping spills.
Chefman describes a handle lock that opens by lifting the release and pulling the handle; BLACK+DECKER lists a push-button door release. Those actions can matter more than another preset when you carry dishes frequently or have limited hand strength. Check the opening instructions and consider whether every adult user can perform the required motion. Chefman door details, BLACK+DECKER door details.
Chefman and Toshiba list mute functions, which are useful in an open apartment or during early breakfast preparation. Muting refers to the beeps, not a promise of silent cooking. Operating noise in decibels is not listed by the maker in the specifications linked here; use the sound setting as a control feature rather than a noise comparison. Chefman features, Toshiba features.
For upkeep, the FDA recommends cleaning the cavity, its outer edge, and the door with water and mild detergent, avoiding abrasive pads. Chefman says its glass turntable is top-rack dishwasher safe, which is a useful distinction if that matches your cleanup routine. FDA microwave guidance, Chefman product care.
The FDA also says to stop using an oven with a damaged door or one that does not close firmly. Its guidance recommends microwave-safe cookware and following the manufacturer's operating instructions. A cleaning routine should include looking at the door area, not just removing visible splatter from the center of the cavity. FDA microwave guidance.
How do the popular picks compare side by side?
Choose Chefman for limited counter space, BLACK+DECKER for basic plate reheating, or Toshiba for sensor convenience.
Amazon's Oct 14, 2026 popularity labels showed 10K+ bought in the past month for Chefman, 5K+ for BLACK+DECKER, and 8K+ for Toshiba. Those labels indicate buying activity; they do not establish durability or cooking quality.
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| Model | Capacity / cooking output | Body size, W × D × H | Reheating controls | Price (Amazon.com, Oct 14, 2026) | Buy |
|---|---|---|---|---|---|
| Chefman RJ55-7-V2 | 0.7 cu. ft. / 700 W | 17.52 × 12.93 × 9.53 in. | Manual time, express cooking, mute | Price varies; check Amazon | View on Amazon |
| BLACK+DECKER EM031MB11 | 1.1 cu. ft. / 1,000 W | 20.6 × 14.8 × 11.8 in. | Manual time, food presets, push-button door | about $99.89 on Amazon.com (Oct 14, 2026) | View on Amazon |
| Toshiba EM131A5C-BS | 1.2 cu. ft. / 1,000 W | 20.6 × 14.6 × 11.8 in. | Humidity sensor, manual time, mute | Price varies; check Amazon | View on Amazon |
Prices are what Amazon.com showed on Oct 14, 2026 and change often.
Model details: Chefman on Amazon, BLACK+DECKER on Amazon, Toshiba on Amazon. Confirm the current offer and installation dimensions before ordering; the Chefman and Toshiba price entries require a current Amazon check.
A closer look at each product
If you have limited counter space · Chefman RJ55-7-V2
The 0.7 cu. ft., 700-watt model has the smallest Amazon-listed body of these options. Confirm the current unit's depth and required ventilation space before ordering.
- Compact Amazon-listed body
- Mute option
- Top-rack dishwasher-safe glass turntable
- Lower cooking output than the other options
- Published body dimensions differ between the product page and series manual
If you want basic plate reheating · BLACK+DECKER EM031MB11
Its 1.1 cu. ft. capacity, 1,000-watt output, and 12.4-inch turntable suit buyers seeking a larger plate platform with straightforward controls. The Amazon price provides a concrete budget reference.
- 1,000-watt cooking output
- Removable 12.4-inch turntable
- Push-button door release
- Needs more counter width than the Chefman
- Humidity sensor not listed by the maker
If you want sensor reheating · Toshiba EM131A5C-BS
Toshiba says the humidity sensor automatically adjusts cooking time and power. Its 1,000-watt rating and 12.4-inch turntable match the BLACK+DECKER, so sensor convenience is the main reason to choose it.
- Humidity sensor adjusts time and power
- Removable 12.4-inch turntable
- Mute function
- Maker and Amazon publish conflicting exterior dimensions
- Current Amazon price needs checking
In one sentence
Check counter fit, dish fit and power, and daily care before choosing a countertop microwave.
Chefman RJ55-7-V2
View on AmazonBLACK+DECKER EM031MB11
View on AmazonToshiba EM131A5C-BS
View on AmazonWhat to check
- Counter fit · Body size plus ventilation and door accessMeasure your available counter space and compare it with the current model's dimensions and installation clearances.
- Dish fit and power · Usable dish space and cooking outputMeasure your usual plate and handled container, then compare cooking output with your meal instructions.
- Daily care · Door operation, sound controls, and cleanupCheck the door-opening motion, mute setting, and removable-part cleaning instructions against your routine.
- Counter fit and ventilation
- Dish fit and cooking power
- Daily controls and care
Frequently asked questions
Is a 700-watt countertop microwave enough?
The Chefman offers 700 watts for small servings and manual reheating. Compare your packaged meal instructions with that output and allow for the required timing adjustments rather than assuming directions for a more powerful oven apply.
Can I put a countertop microwave inside a cabinet?
Check the exact model's installation instructions before choosing that location. Chefman's guide requires an open right side, at least 3 inches at the other sides, and at least 12 inches above, so a close-fitting enclosed cabinet does not meet that guidance.
Is sensor cooking worth paying more for?
Toshiba says its humidity sensor adjusts cooking time and power automatically. That can be useful for frequent reheating, while someone comfortable entering a familiar time may prefer basic controls; check the current prices before comparing the cost.
What is the best way to clean a countertop microwave?
The FDA recommends water and mild detergent for the cavity, outer cavity edge, and door, avoiding abrasive pads. Chefman says its glass turntable is top-rack dishwasher safe; follow the specific maker's instructions for removable parts.
Sources
- Chefman RJ55-7-V2 specifications · Oct 14, 2026
Confirms model, 0.7 cu. ft., 700 W, compact body dimensions, mute option, and dishwasher-safe turntable. Maker store price is not used as an Amazon price.
- Toshiba EM131A5C-BS specifications · Oct 14, 2026
Confirms 1.2 cu. ft., the main 1,000-watt specification, 12.4-inch turntable, sensor adjustment, and mute. Page lists conflicting dimensions and an inconsistent output field; Amazon cooking-output bullet agrees with the main wattage specification.
- Chefman RJ55-7-V2 series user guide · Oct 14, 2026
Installation guidance: open right side, at least 3 inches at the other sides, and at least 12 inches above. Current series manual differs from the product page on body dimensions; confirm the current unit's size.
- FDA microwave oven guidance · Oct 14, 2026
Cleaning with water and mild detergent, avoiding abrasives, microwave-safe cookware, and damaged-door precautions; no numerical safety limits used.
