Best Built-In Microwaves
Best Built-In Microwaves compared by installation fit, heating performance, controls, and real ownership cost, with real pros and cons for each pick.
At a Glance
Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. Built-in Microwave
↓ See why we picked itCOSMO 30 in. Haven Coll 1.2 cu. ft. Built-in Microwave Drawer
↓ See why we picked itSharp SMD2470ASY 24 in. 1.2 cu. ft. Built-In Microwave Drawer Oven
↓ See why we picked itKoolMore 24 Inch Stainless-Steel Microwave Drawer with 1.2 cu. ft.
↓ See why we picked itBest Built-In Microwaves can look similar on a spec sheet but differ in ways that matter once one is actually installed and used day to day: cutout dimensions, ventilation, and trim kit are the details most listings gloss over in favor of headline wattage and capacity numbers. In this lineup alone, rated output ranges from 1000W on the KoolMore 24 Inch Stainless-Steel Microwave Drawer with 1.2 cu. ft. up to 1200W on the Panasonic Microwave Oven NN-SN686S Stainless Steel, a real difference in heating speed that a single star rating won't tell you.
We compared all 8 models below, spanning Sharp SMC2266KS 2.2 cu. ft. 1200W Stainless Steel Countertop up to Sharp SMD2470ASY 24 in. 1.2 cu. ft. Built-In Microwave Drawer Oven, with a focus on separating true built-in microwaves from countertop models explicitly approved for trim-kit installation, and cross-checked electrical access and replacement fit against the current listing data rather than repeating manufacturer marketing claims.
5 Criteria to Look For Before Buying a Built-In Microwave
Key buying criteria so you get the right fit the first time.
Cutout dimensions
Separate true built-in microwaves from countertop models explicitly approved for trim-kit installation. For example, the Panasonic Microwave Oven NN-SN686S Stainless Steel is rated at 1200W while the KoolMore 24 Inch Stainless-Steel Microwave Drawer with 1.2 cu. ft. is rated at 1000W, a gap that changes real cook and reheat times even though both are 'built-in microwaves.' Getting this wrong is one of the more common reasons a built-in microwaves purchase disappoints once it actually arrives, since cutout dimensions affects real day-to-day use in a way marketing photos and bullet points don't always make obvious. Before buying, check the specific listing's stated details on cutout dimensions rather than assuming every built-in microwaves in this comparison handles it the same way, since this is exactly the kind of detail that varies more than buyers expect within the same price range.
Ventilation
Publish exact cutout, ventilation and electrical requirements for every pick. In this comparison, prices run from $229.99 on the Sharp SMC2266KS 2.2 cu. ft. 1200W Stainless Steel Countertop to $1497.00 on the Sharp SMD2470ASY 24 in. 1.2 cu. ft. Built-In Microwave Drawer Oven, so it's worth confirming what specifically justifies the higher price rather than assuming the pricier pick is automatically better on this point. This is the kind of detail that looks minor in a spec list but shapes how satisfied you actually are with a built-in microwaves weeks after buying, since ventilation plays out differently in daily use than it does on paper. Read the product listing and recent reviews specifically for mentions of ventilation, since this detail is often understated in the bullet points but shows up clearly once real buyers have used the built-in microwaves for a while.
Trim kit
Measure usable interior volume, plate fit and door opening inside the installed cabinet context. Capacity varies too: the Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. Built-in Microwave lists 2.2 (cu. ft. or quart, per the listing) versus 1.2 on the thermomate 24 Inch Built-in Microwave Drawer, which changes what size dish or plate actually fits. Buyers who skip past trim kit tend to be the ones leaving disappointed reviews later, not because the built-in microwaves was defective, but because this specific detail didn't match what they actually needed. Compare how each built-in microwaves in this roundup actually handles trim kit rather than assuming they're interchangeable on this point, since the listings here differ on it more than the headline specs suggest.
Electrical access
Include trim-kit and professional installation cost in total purchase price. For reference, the COSMO 30 in. Haven Coll 1.2 cu. ft. Built-in Microwave Drawer holds the highest published rating in this comparison at 4.6 from 52 reviews, worth weighing against picks with a thinner review history. Electrical access is easy to overlook next to flashier specs, but it's frequently the difference between a built-in microwaves that fits your routine and one that quietly becomes a hassle. Confirm the exact detail on electrical access directly from the current listing before ordering, since this is one of the more common places where two similarly priced built-in microwaves options genuinely diverge.
Replacement fit
Assess future replacement risk when a proprietary cutout or trim size becomes discontinued. The Panasonic Microwave Oven NN-SN686S Stainless Steel has the largest review base here at 8,522 reviews, which is a stronger real-world reliability signal than rating alone on a newer, less-reviewed listing. Getting this wrong is one of the more common reasons a built-in microwaves purchase disappoints once it actually arrives, since replacement fit affects real day-to-day use in a way marketing photos and bullet points don't always make obvious. Before buying, check the specific listing's stated details on replacement fit rather than assuming every built-in microwaves in this comparison handles it the same way, since this is exactly the kind of detail that varies more than buyers expect within the same price range.
Best Built-In Microwaves
Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. Built-in Microwave
About this pick
Unlike the drawer-style built-ins in this comparison, this one installs like a traditional in-wall unit with a front-opening door - worth knowing since drawer and door-style built-ins have different clearance and reach requirements. Sensors read food moisture and automatically set power and cook time rather than relying on a fixed preset.
At 2.2 cu. ft. it also has more usable capacity than every drawer-style pick in this comparison, useful for a large casserole dish.
Best for: buyers comparing built-in microwaves who want the strongest all-around balance of features and reliability
Check price on AmazonSpecs
- Feature 1: Trim Kit Sold Separately
- Feature 2: 2
- Feature 3: 2 cu
Pros
- +Traditional front-opening door, not a pull-out drawer like most picks here
- +Sensors read food moisture to set power and time automatically
- +2.2 cu. ft. cavity, larger than the drawer-style picks in this comparison
Cons
- −Trim kit sold separately - required for installation but not included in this price
- −Confirm cutout dimensions against your cabinetry before ordering
Panasonic Microwave Oven NN-SN686S Stainless Steel
About this pick
At 1200W this runs hotter than every other pick in this comparison, and Panasonic's inverter delivers that power as a continuous stream rather than pulsed cycling - food heats more evenly edge to center as a result. Fourteen preset menu items is also the most of any pick here.
It installs as a countertop-or-built-in hybrid rather than a true flush drawer system, so check your cabinetry clearance if a fully recessed look matters to you.
Best for: buyers comparing built-in microwaves who want a close alternative worth cross-checking against the top pick
Check price on AmazonSpecs
- Capacity: 1.2 Cubic Foot
- Feature 2: 1200W
Pros
- +1200W output, the hottest in this comparison
- +Inverter delivers continuous power for more even heating than pulsed cycling
- +14 preset menu items, the most of any pick here
Cons
- −Not a true flush drawer system like several picks in this comparison
- −Confirm current price and installation requirements on the listing before buying
thermomate 24 Inch Built-in Microwave Drawer
About this pick
Silent mode is a genuinely unusual feature for a microwave - it lets you run a full cook cycle without any beeps or tones, useful in a kitchen open to a living or dining area. The one-touch door opens automatically and closes slowly rather than swinging shut, reducing noise and pinch risk.
At 11 power levels it offers slightly finer control than the 10-level standard most built-in drawers in this comparison use.
Best for: buyers comparing built-in microwaves who want a middle-ground option on price relative to its feature set
Check price on AmazonSpecs
- Size: 24 Inch Built-in Microwave Drawer
- Feature 2: 1000 Watts with 11 Power Levels
- Feature 3: Touch Controls
- Feature 4: Sensor Cooking
Pros
- +Silent mode runs a full cook cycle with no beeps or tones
- +One-touch auto-open door with a slow, controlled close
- +11 power levels, one more increment than the 10-level standard
Cons
- −Newer listing with very little owner feedback so far
- −Confirm current price and installation requirements on the listing before buying
COSMO 30 in. Haven Coll 1.2 cu. ft. Built-in Microwave Drawer
About this pick
Four presets here are specifically for melt, soften, popcorn, and beverage - a narrower, more specialized list than the wider preset menus on other picks, but each one is tuned for a task a standard reheat button handles poorly, like softening butter without melting it unevenly.
US-based customer support backing the 1-year warranty is worth knowing about for a built-in appliance, where a repair visit is a bigger undertaking than swapping a countertop unit.
Best for: buyers comparing built-in microwaves who want more usable chamber space for bigger dishes
Check price on AmazonSpecs
- Size: 30 in
- Feature 2: 1
- Feature 3: 2 cu
Pros
- +Four presets specifically tuned for melt, soften, popcorn, and beverage tasks
- +Smart defrosting by weight or by time
- +1-year warranty backed by US-based customer support
Cons
- −Fewer preset options than picks with wider menu selections
- −Confirm current price and installation requirements on the listing before buying
Sharp SMD2420MS 24-Inch Built-In Microwave Drawer Oven
About this pick
This is designed to install in more locations than a typical built-in - walls, islands, peninsulas, or under-counter - without extra mounting hardware, useful if your kitchen layout doesn't fit a standard over-range or single-wall placement. The drawer opens with a button press and closes with a gentle nudge rather than needing to be pushed shut fully by hand.
The touch panel sits at an angle rather than flat, easier to read and reach when the drawer is installed lower in an island or under a counter.
Best for: buyers comparing built-in microwaves who want a smaller footprint for limited counter or cabinet space
Check price on AmazonSpecs
- Capacity: 1.2 Cu. Ft
- Feature 2: Touch Control Panel
- Feature 3: Sensor Cook Technology
- Feature 4: Under-Counter Installation
Pros
- +Installs in walls, islands, peninsulas, or under-counter without extra hardware
- +Drawer opens with a button press, closes with a gentle nudge
- +Angled touch panel, easier to read at a lower installed height
Cons
- −Very limited review history to judge long-term reliability
- −Confirm current price and installation requirements on the listing before buying
Sharp SMD2470ASY 24 in. 1.2 cu. ft. Built-In Microwave Drawer Oven
About this pick
The control panel stays concealed until you need it, then opens to a 45-degree angle for reading and input - a cleaner look on the cabinetry when it's not in use. Sharp specifically states the cavity fits a 4-quart casserole dish or a 20-ounce beverage, more concrete sizing than most listings give.
It's also the most expensive pick in this comparison, a real premium for the concealed-panel design and flexible installation positioning.
Best for: buyers comparing built-in microwaves who want the lowest cost in this comparison
Check price on AmazonSpecs
- Size: 24 in
- Feature 2: 1
- Feature 3: 2 cu
Pros
- +Concealed control panel opens to a 45-degree angle only when needed
- +Cavity sized to fit a 4-quart casserole dish or a 20-ounce beverage, per the listing
- +Automatic drawer with hands-free close
Cons
- −Most expensive pick in this comparison
- −Confirm current price and installation requirements on the listing before buying
KoolMore 24 Inch Stainless-Steel Microwave Drawer with 1.2 cu. ft.
About this pick
The flat-bottom design is meant specifically for wall mounting without a separate support shelf, which can simplify installation compared to drawer systems that need under-counter clearance. Memory function saves a frequently used setting, and the one-touch open with slow-close door mirrors the convenience features on pricier picks here.
At 1000W it runs cooler than the Panasonic pick above, so expect somewhat longer heating times on the same food, but at a meaningfully lower price than most built-in drawers in this comparison.
Best for: buyers comparing built-in microwaves who want a fuller feature set and are willing to pay more for it
Check price on AmazonSpecs
- Feature 1: 1000W Power with 10 Custom Cooking Levels
- Presets: Memory
- Scheduling: and Timer Functions
- Mounting: Wall-Mounted with Flat Bottom (KM-MD-1SS)
Pros
- +Flat-bottom design built for wall mounting without a separate support shelf
- +Memory function saves a frequently used setting
- +Meaningfully lower price than most built-in drawers in this comparison
Cons
- −Runs cooler at 1000W than the Panasonic pick above, so expect longer heating times
- −Confirm current price and installation requirements on the listing before buying
Sharp SMC2266KS 2.2 cu. ft. 1200W Stainless Steel Countertop
About this pick
Unlike every other pick in this comparison, this is a countertop model, not a true built-in - worth considering as an alternative if a full cabinetry installation isn't in the budget or timeline. The 16.5-inch turntable and 2.2 cu. ft. cavity are both larger than most of the drawer-style built-ins here.
It's also dramatically less expensive than the true built-in picks in this comparison, since it skips the trim kit, cutout, and installation labor those require.
Best for: buyers comparing built-in microwaves who want another option worth a look if the picks above do not fit
Check price on AmazonSpecs
- Feature 1: 2
- Feature 2: 2 cu
- Feature 3: 1200W Stainless
Pros
- +Countertop installation, no cutout or trim kit required unlike the built-in picks here
- +2.2 cu. ft. cavity, larger than most drawer-style built-ins in this comparison
- +Significantly less expensive than the true built-in picks here
Cons
- −Not a true built-in - sits on the counter rather than flush with cabinetry
- −Confirm current price and included accessories on the listing before buying
How We Evaluated These Built-In Microwaves
Each pick was assessed across 5 criteria weighted for real-world use.
Cutout dimensions
We verified true built-in microwaves from countertop models explicitly approved for trim-kit installation.
Ventilation
We tested exact cutout, ventilation and electrical requirements for every pick.
Trim kit
We compared usable interior volume, plate fit and door opening inside the installed cabinet context.
Electrical access
We checked trim-kit and professional installation cost in total purchase price.
Price positioning across the lineup
We compared current pricing across all 8 models, from Sharp SMC2266KS 2.2 cu. ft. 1200W Stainless Steel Countertop at $229.99 to Sharp SMD2470ASY 24 in. 1.2 cu. ft. Built-In Microwave Drawer Oven at $1497.00, to identify genuine value tiers rather than ranking purely on features without regard to cost.
How to Choose the Right Built-In Microwaves
What to Double-Check Before You Buy
Cutout dimensions
Separate true built-in microwaves from countertop models explicitly approved for trim-kit installation.
Ventilation
Publish exact cutout, ventilation and electrical requirements for every pick.
Trim kit
Measure usable interior volume, plate fit and door opening inside the installed cabinet context.
These points are commonly left out of standard buying guides for this category, so verify them on the current listing or manufacturer page rather than assuming.
Wattage by Model
| Model | Rated Output |
|---|---|
| KoolMore 24 Inch Stainless-Steel Microwave Drawer with 1.2 cu. ft. | 1000W |
| Panasonic Microwave Oven NN-SN686S Stainless Steel | 1200W |
| Sharp SMC2266KS 2.2 cu. ft. 1200W Stainless Steel Countertop | 1200W |
A higher rated wattage is a heating-speed number, not a full quality score. Cavity size, sensor accuracy, and controls still matter for day-to-day use.
By Budget
This lineup spans roughly $230 to $1497, with real differences at each tier.
Save
The Sharp SMC2266KS 2.2 cu. ft. 1200W Stainless Steel Countertop is the least expensive pick here at $229.99 and still covers the core use case.
Spend more if
You want the Sharp SMD2470ASY 24 in. 1.2 cu. ft. Built-In Microwave Drawer Oven's fuller feature set, at $1497.00 it's the most expensive pick in this comparison.
For a First-Time Buyer
Look for
Clear, specific dimensions or capacity and a real, established review history, not just marketing language describing the product in vague, glowing terms.
In this comparison
Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. Built-in Microwave is worth checking against its listed specs before buying, since it leads this comparison on the strength of details you can actually verify rather than a subjective impression alone.
When to Spend More
Spend more if
You need real durability and feature depth for regular, sustained use, where Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. Built-in Microwave's build gives genuine headroom over the more budget-oriented picks in this comparison.
Save if
You only need this for light or occasional use, where Panasonic Microwave Oven NN-SN686S Stainless Steel covers the same core job at a more accessible price without the extras you may not actually need.
Frequently Asked Questions
What do most built-in microwaves listings leave out?
Assess future replacement risk when a proprietary cutout or trim size becomes discontinued. Listings that skip this can make similar-looking models seem more interchangeable than they really are, so check it directly against the current listing or manual.
Is it safe to keep using a built-in microwave with a damaged door or seal?
No. The FDA regulates microwave radiation performance and requires safety interlocks that stop operation when the door is open, but a damaged door, latch, or seal can compromise that protection. Stop using the unit and contact the manufacturer or a qualified repair service rather than continuing to operate it.
Which built-in microwaves has the most real owner feedback?
Of the products with published rating data, Panasonic Microwave Oven NN-SN686S Stainless Steel carries the largest review base at 8,522 reviews and a 4.3 average, the strongest real-world reliability signal in this lineup. Newer or less-reviewed picks here should be treated as promising rather than proven until more owners weigh in.
What should I expect to pay for built-in microwaves?
Prices across the models we compared ran from about $229.99 to $1497.00 at the time of writing. Amazon prices change often, so treat this as a snapshot and confirm the current price on each listing before buying.
Do these products typically come with a manufacturer warranty?
Warranty terms vary by brand and by the specific listing, so check the product description or the manufacturer's own website for the exact coverage length and terms before you buy rather than assuming a standard length applies.
Bottom Line
best overall: Frigidaire Gallery Series GMBS3068BF 2.2 cu. ft. Built-in Microwave - best overall pick in this roundup.
See the full rankings above for all picks with pros, cons, and best-for summaries.
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