Best COSMO Microwaves in 2026: 6 Picks by Install Type and Capacity
The best COSMO microwave in the current pool is the 30-inch over-the-range model with a 1.9 cu ft capacity. It has the largest stated capacity in the group and includes a vent fan, making it the most useful fit for a standard 30-inch cooking space. For a built-in drawer, the COS-12MWDSS-NH 24-inch model is the best-equipped option because it is the only pick with automatic presets and touch controls. This guide compares the stated specifications of all six COSMO microwaves in the pool.
6 picks from 11 microwaves that match this guide with a price we can quote today. Live prices throughout, each with the moment it was read.
The list in brief
| # | Pick | Microwave | Price |
|---|---|---|---|
| 1 | Best slim over-the-range | 30 in. Stellar Coll 1.2 cu ft Slim Over the Range Microwave Vent Fan | $469.00 (as of 11/05/2026 02:38 PST - Details) |
| 2 | Best overall | 30 in. Stellar Coll 1.9 cu ft Over the Range Microwave | $356.99 (as of 11/05/2026 02:38 PST - Details) |
| 3 | Best 24-inch over-the-range | 24 in. Stellar Coll 1.3 cu ft Over the Range Microwave | $339.99 (as of 11/05/2026 02:37 PST - Details) |
| 4 | Best compact built-in drawer | 24 in. Haven Collection 1.2 cu. ft. Built-in Microwave Drawer | $999.99 (as of 11/05/2026 02:37 PST - Details) |
| 5 | Best wide built-in drawer | 30 in. Haven Coll 1.2 cu. ft. Built-in Microwave Drawer | $1,249.99 (as of 11/05/2026 02:38 PST - Details) |
| 6 | Best equipped drawer | COSMO COS-12MWDSS-NH 24 in. Built-in Microwave Drawer | $1,216.96 (as of 11/04/2026 22:25 PST - Details) |
Which pick fits you?
- For a standard 30-inch over-the-range slot: Choose the 30-inch over-the-range model with 1.9 cu ft if you want the largest stated capacity in the pool and a vent fan for a common 30-inch opening. See pick 2
- For a 24-inch over-the-range opening: The 24-inch over-the-range model is the only COSMO OTR pick that fits a 24-inch mounted space, with a stainless finish and a vent fan. See pick 3
- For a built-in drawer with presets: Pick the COS-12MWDSS-NH 24-inch drawer if you want the only stated automatic presets and touch controls in this pool. See pick 6
- For a wide built-in drawer: The 30-inch Haven drawer is the only 30-inch drawer in the pool, so it suits wider built-in cabinet openings. See pick 5
The full list of 6
1 Best slim over-the-range
30 in. Stellar Coll 1.2 cu ft Slim Over the Range Microwave Vent Fan
- Type
- Over the range
- Capacity
- 1.0 to 1.4 cu ft
- Wattage
- 1000 to 1199 W
- Width
- 30 inch
- Sensor cooking
- Yes
$469.00 (as of 11/05/2026 02:38 PST - Details)
This is the only over-the-range microwave in the pool described as slim, and its 30-inch width fits standard over-the-range openings. The stated 1.2 cu ft capacity is smaller than the 30-inch stainless model, so it suits kitchens where a lower profile matters more than maximum interior space.
Pros
- 30-inch width for standard over-the-range openings
- Only pick described as slim
- Black finish with vent fan
- Stated capacity in the 1.0 to 1.4 cu ft class
Cons
- Smaller stated capacity than the 1.9 cu ft 30-inch over-the-range pick
- Power level and turntable details not stated by the seller
Good fit if
- Buyers with a 30-inch over-the-range opening who want a low-profile black unit
- Buyers who use the vent fan and do not need the largest interior
Skip if
- Anyone who regularly heats large platters or tall containers; the 1.9 cu ft 30-inch model has more stated space
- Kitchens with a 24-inch opening; this unit is 30 inches wide
Verdict: A slim 30-inch over-the-range COSMO for a standard opening when the extra capacity of the 1.9 cu ft model is not needed.
2 Best overall
30 in. Stellar Coll 1.9 cu ft Over the Range Microwave
- Type
- Over the range
- Capacity
- 1.5 to 1.9 cu ft
- Wattage
- 1000 to 1199 W
- Width
- 30 inch
- Sensor cooking
- Yes
$356.99 (as of 11/05/2026 02:38 PST - Details)
Largest stated capacity in the pool at 1.9 cu ft, combined with a 30-inch over-the-range format and a vent fan. It is the most capable COSMO OTR choice listed and covers the 1.5 to 1.9 cu ft class that no other pick reaches.
Pros
- Largest stated capacity of any pick in this pool: 1.9 cu ft
- 30-inch over-the-range width with vent fan
- Stainless finish
- Only pick in the 1.5 to 1.9 cu ft stated class
Cons
- No capacity in the 2.0 cu ft or larger class is offered in this pool
- Stated width is 30 inches, so it will not fit 24-inch openings
- Wattage and turntable details not stated by the seller
Good fit if
- Kitchens with a 30-inch over-the-range opening looking for maximum stated interior space
- Users who want the vent fan plus the largest capacity in this COSMO pool
Skip if
- Narrower 24-inch installations; choose the 24-inch OTR instead
- Anyone who wants a drawer-style microwave
Verdict: The best all-around COSMO in the pool for a standard over-the-range slot because it has the largest stated capacity and includes ventilation.
3 Best 24-inch over-the-range
24 in. Stellar Coll 1.3 cu ft Over the Range Microwave
- Type
- Over the range
- Capacity
- 1.0 to 1.4 cu ft
- Wattage
- 1000 to 1199 W
- Width
- 24 inch
- Sensor cooking
- Yes
$339.99 (as of 11/05/2026 02:37 PST - Details)
The only 24-inch over-the-range model in this pool, so it is the sole COSMO OTR fit for narrower mounted openings. Its stated capacity falls in the same 1.0 to 1.4 cu ft class as the 30-inch slim OTR.
Pros
- Only 24-inch over-the-range microwave in the COSMO pool
- Stated capacity in the 1.0 to 1.4 cu ft class
- Stainless finish with vent fan
Cons
- Smaller stated capacity than the 30-inch 1.9 cu ft OTR
- Will not fill a 30-inch opening
- Wattage and turntable details not stated by the seller
Good fit if
- Kitchens with a 24-inch over-the-range space
- Buyers who want a stainless vent-fan microwave in a compact width
Skip if
- Standard 30-inch over-the-range openings; choose a 30-inch OTR instead
- Anyone who needs a large 1.5 cu ft or larger interior
Verdict: The COSMO over-the-range choice for a 24-inch opening when a stainless finish and vent fan are the priorities.
4 Best compact built-in drawer
24 in. Haven Collection 1.2 cu. ft. Built-in Microwave Drawer
- Type
- Drawer
- Capacity
- 1.0 to 1.4 cu ft
- Wattage
- 1000 to 1199 W
- Width
- 24 inch
$999.99 (as of 11/05/2026 02:37 PST - Details)
A 24-inch drawer format with a stated 1.2 cu ft capacity, which makes it a compact built-in option. It is one of two 24-inch drawers in the pool, but the only one in matte black.
Pros
- 24-inch width for compact built-in cabinets
- Drawer style rather than door or OTR
- Stated capacity of 1.2 cu ft
- Matte black finish
Cons
- No automatic presets or touch controls stated, unlike the COS-12MWDSS-NH drawer
- Drawer installation may require a cabinet cutout; installation dimensions not stated by the seller
- Only 24-inch width; not for larger cutouts
Good fit if
- Kitchens with a 24-inch built-in cabinet slot for a drawer microwave
- Anyone who wants a matte black finish instead of stainless
Skip if
- Buyers who want preset cooking controls; choose the other 24-inch drawer
- 30-inch built-in openings; choose the 30-inch drawer
Verdict: A compact matte black COSMO drawer for 24-inch built-in spaces when standard controls are enough.
5 Best wide built-in drawer
30 in. Haven Coll 1.2 cu. ft. Built-in Microwave Drawer
- Type
- Drawer
- Capacity
- 1.0 to 1.4 cu ft
- Wattage
- 1000 to 1199 W
- Width
- 30 inch
$1,249.99 (as of 11/05/2026 02:38 PST - Details)
The only 30-inch drawer microwave in the pool, making it the pick for wide built-in openings. It keeps the drawer format and states a 1.2 cu ft capacity, with a stainless finish.
Pros
- Only 30-inch drawer in the COSMO pool
- Stainless finish
- Stated capacity of 1.2 cu ft
- Built-in drawer format
Cons
- No automatic presets or touch controls stated, unlike the 24-inch COS-12MWDSS-NH
- Will not fit a 24-inch built-in opening
- Installation depth and weight not stated by the seller
Good fit if
- Wide built-in cabinets designed for a 30-inch appliance
- Buyers who want drawer access and stainless finish
Skip if
- 24-inch openings; choose a 24-inch drawer
- Buyers who want preset or touch controls; choose the COS-12MWDSS-NH if it fits
Verdict: The wide COSMO drawer option for 30-inch built-in spaces, though it lacks the stated presets of the 24-inch equipped drawer.
6 Best equipped drawer
COSMO COS-12MWDSS-NH 24 in. Built-in Microwave Drawer
- Type
- Drawer
- Width
- 24 inch
$1,216.96 (as of 11/04/2026 22:25 PST - Details)
The only pick in the pool with automatic presets and touch controls named in the product listing, and it also includes a 668WRCS75 wall mount. It is a 24-inch drawer, so the trade-off is that the seller does not state an interior capacity.
Pros
- Only COSMO in the pool with automatic presets and touch controls stated
- Includes 668WRCS75 wall mount
- 24-inch built-in drawer format
- Touch controls are stated in the product title
Cons
- Capacity is not stated by the seller
- Finish is not stated by the seller, while other drawers list stainless or matte black
- 24-inch width only
Good fit if
- Buyers who want preset cooking functions in a built-in drawer
- 24-inch cabinet openings where a wall mount is needed
Skip if
- Anyone who needs a stated capacity before buying
- 30-inch openings; choose the 30-inch drawer instead
Verdict: The feature-packed COSMO drawer for a 24-inch built-in opening, if the missing capacity spec is acceptable.
The specs, compared
| # | Microwave | Type | Capacity | Wattage | Width | Convection | Air fry |
|---|---|---|---|---|---|---|---|
| 1 | 30 in. Stellar Coll 1.2 cu ft Slim Over the Range Microwave Vent Fan | Over the range | 1.0 to 1.4 cu ft | 1000 to 1199 W | 30 inch | not stated | not stated |
| 2 | 30 in. Stellar Coll 1.9 cu ft Over the Range Microwave | Over the range | 1.5 to 1.9 cu ft | 1000 to 1199 W | 30 inch | not stated | not stated |
| 3 | 24 in. Stellar Coll 1.3 cu ft Over the Range Microwave | Over the range | 1.0 to 1.4 cu ft | 1000 to 1199 W | 24 inch | not stated | not stated |
| 4 | 24 in. Haven Collection 1.2 cu. ft. Built-in Microwave Drawer | Drawer | 1.0 to 1.4 cu ft | 1000 to 1199 W | 24 inch | not stated | not stated |
| 5 | 30 in. Haven Coll 1.2 cu. ft. Built-in Microwave Drawer | Drawer | 1.0 to 1.4 cu ft | 1000 to 1199 W | 30 inch | not stated | not stated |
| 6 | COSMO COS-12MWDSS-NH 24 in. Built-in Microwave Drawer | Drawer | not stated | not stated | 24 inch | not stated | not stated |
Why these made the list
The pool for this guide held six COSMO microwave listings. Because that is fewer than 12, every listing was included as a pick. The shortlist was based on stated specifications only: installation type, width, and capacity where listed, plus any features named in the product title. No testing of the units was done for this guide. Prices on this page are live prices read from the store listing at the time the page was generated, so they can change; this guide does not compare prices. When a specification is missing from the listing, the text says it is not stated by the seller rather than guessing.
Things to weigh before buying
Over-the-range or drawer
The COSMO pool splits into two installation types. Over-the-range models in this list are described with a vent fan and are meant to be mounted above the cooktop. Drawer models are described as built-in and pull out, which can be useful in an island or lower cabinet. Choose the type that matches the space you have before comparing widths and capacity.
Width and cabinet fit
Every COSMO pick has a stated width of either 24 inches or 30 inches. The over-the-range group includes one 24-inch model and two 30-inch models; the drawer group includes two 24-inch models and one 30-inch model. Measure your opening, then look only at models with a matching stated width. A 24-inch microwave will not fill a 30-inch opening, and a 30-inch unit will not fit in a 24-inch space.
Capacity and interior space
The pool lists capacity in two stated classes: 1.0 to 1.4 cu ft and 1.5 to 1.9 cu ft. Most picks fall in the smaller class; the 30-inch stainless over-the-range is the only one in the larger class. The COS-12MWDSS-NH drawer does not state a capacity, so compare that model on features rather than interior volume.
Features worth looking for
Because the pool does not include wattage or turntable details for any model, feature comparisons have to come from what is stated in the product names. The COS-12MWDSS-NH 24-inch drawer is the only pick with automatic presets and touch controls, and it includes a 668WRCS75 wall mount. If a desired feature is not listed, consider it not stated by the seller.
Safe cooking
The FDA's safe food handling guidance applies to microwave reheating: cover food, stir and rotate for even cooking, rotate by hand if the oven has no turntable, let food stand, and use a food thermometer to check that meat, poultry, and egg dishes reach a safe internal temperature. These steps matter more than the brand or model.
Replacing an old microwave
When you remove an old microwave, check local electronics donation and recycling programs before disposal. The EPA notes that manufacturers and retailers offer options to donate or recycle electronics and that doing so conserves materials. A working older unit may be a candidate for donation if a local program accepts appliances.
Questions
Which COSMO microwave has the largest stated capacity?
The 30-inch over-the-range stainless model with a 1.9 cu ft capacity. It is the only pick in the 1.5 to 1.9 cu ft class in this pool. The other five models either state a capacity in the 1.0 to 1.4 cu ft class or, in the case of the COS-12MWDSS-NH drawer, do not state a capacity at all.
What is the difference between COSMO over-the-range and drawer microwaves?
Over-the-range models in this pool are 24 or 30 inches wide and include a vent fan, so they mount above a cooktop. Drawer models are described as built-in and pull out from a cabinet. There are three over-the-range picks and three drawer picks in this list. Measure your space to decide which style fits.
Do any COSMO microwaves have preset cooking functions?
Yes. The COS-12MWDSS-NH 24-inch drawer is the only pick in this pool with automatic presets and touch controls stated in the product name. None of the over-the-range models state preset or touch control information, and the other two drawers do not either, so compare this model on its stated features.
How should I safely reheat food in a microwave?
The FDA recommends covering food, stirring and rotating for even cooking, and rotating the dish by hand once or twice if the oven has no turntable. Always allow standing time, then check the internal temperature with a food thermometer. Follow safe minimum temperatures for meat and poultry, such as 165 F for poultry.
Can I recycle an old COSMO microwave?
Yes, check local electronics donation and recycling programs before putting a microwave in the trash. The EPA says manufacturers and retailers offer donation and recycling options for electronics. If the unit still works, a local charity or recycler may accept it; if not, a certified electronics recycler may take it.
Latest changes
- : First published.