Head-to-head · Best Convection Microwaves

Breville Combi Wave BMO870 3-in-1 vs Sharp Carousel SMC1585BS Convection

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Breville Combi Wave BMO870 3-in-1 comes out ahead by a narrow margin (4.5 vs 4.4). The gap is mostly about Apartment dwellers and small-kitchen owners who want premium materials, a soft-close door, and a 1.1 cu ft footprint that does not dominate a 24-inch counter. — read the strengths below before deciding.

Higher ratedRanked #4 in Best Convection Microwaves

Breville Combi Wave BMO870 3-in-1

4.5

$499

Breville's Combi Wave BMO870 is the premium-feel option in this category — the soft-close door alone separates it from every other unit here, and the 1200W microwave makes it the fastest reheater in the guide. The 1.1 cu ft cavity and the imperfect air-fry mode are the price of the compact footprint and premium materials, and Top Ten Reviews described it as 'a smart buy' for kitchens where the cooking matters and the budget allows.

Strengths

— Soft-close door is the only one in this guide and dramatically reduces ergonomic friction during heavy use
— Stainless-steel build feels premium — owners and Top Ten Reviews describe it as 'incredibly premium' compared to peers
— 1200W microwave is the highest in this guide and reheats faster than the 900-1000W competitors

Watch-outs

— Air-fry mode 'consistently over-shrank' frozen chicken in Top Ten Reviews testing per Paul Rankin
— 1.1 cu ft cavity is the smallest in this guide and will not accept a 9-by-13 baking pan
— Convection fan produces a 'whooshing air sound' at roughly 56 dB — louder than a magnetron-only microwave

$499 · Check Price on Amazon Full review →

Ranked #2 in Best Convection Microwaves

Sharp Carousel SMC1585BS Convection

4.4

$549

Sharp's SMC1585BS is the largest-cavity convection microwave in this guide at 1.5 cu ft and the only model designed from the start to live equally well on a countertop or recessed into cabinetry via the matching trim kit. The 14.1-inch ceramic turntable, 900W microwave, and dedicated Auto Bake, Auto Roast, and Auto Broil presets make it a serious second-oven choice for baking households. The door latch and fingerprints are the friction points.

Strengths

— Built-in capable with optional Sharp RK94S30F (30-inch) or RK94S27F (27-inch) trim kits — the same unit serves countertop and built-in roles
— 1.5 cu ft cavity is the largest in this guide and accommodates a 9-by-13 baking pan with clearance
— 14.1-inch ceramic Carousel turntable spins large casseroles evenly without rim-on-cavity binding

Watch-outs

— Door latch design draws repeated owner complaints — Home Depot reviews flag that the latch button must be pressed firmly before the door will release
— MSRP $779.99 puts the unit in premium-microwave territory when not on sale
— Indicators of trim-kit installation difficulty appear in owner reviews — the 30-inch kit requires a precise cabinet cutout

$549 · Check Price on Amazon Full review →

How they stack up

Breville Combi Wave BMO870 3-in-1

The BMO870 is the premium-build pick — owners describe a quality of fit and finish the Toshiba EC042A5C-BS and Sharp SMC1585BS do not match. It trades 0.4 cu ft of cavity to the Sharp for the smaller apartment-friendly footprint, and 1200W reheats faster than the LG MHEC1737F or Panasonic NN-CD87KS. The air-fry weakness is the documented limit.

Sharp Carousel SMC1585BS Convection

The SMC1585BS offers the largest cavity in this group at 1.5 cu ft — 25% more usable volume than the Panasonic NN-CD87KS or Breville BMO870. It is also the only countertop unit in the guide engineered for built-in installation via factory trim kits, which the Toshiba EC042A5C-BS cannot match. If you need a second oven that can roast a 5 lb chicken, the Sharp gets there with room to spare.

Specs side-by-side

Spec	Breville Combi Wave BMO870 3-in-1	Sharp Carousel SMC1585BS Convection
Capacity	1.1 cu ft	1.5 cu ft
Wattage	1200W microwave / convection	900W microwave / convection
Type	Countertop	Countertop or Built-In with trim kit
Power Levels	10	10
Preset Cooking Programs	19 smart presets including Fast Combi, From Frozen, Air Fry, Oven, Microwave	Auto Bake, Auto Roast, Auto Broil, Auto Defrost, Sensor Cook
Air Fryer Mode	Yes	No
Sensor Cooking	Yes	Yes
Turntable Diameter	13.5 inches	14.1 inches
Color Options	Brushed Stainless Steel	Stainless Steel, Black, White
Warranty	1-year limited	1-year parts and labor

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