Breville BMO850 vs BMO650: Which Microwave Fits Your Counter and Routine?
The Smooth Wave BMO850 is the larger option on Breville's listed cavity capacity and width/depth, while the Compact Wave BMO650 takes less listed counter space. Their controls also suit different preferences: the BMO850 centers on Sensor iQ and smart presets; the BMO650 gives dedicated one-touch buttons for common tasks and a Food Menu. Measure your space and choose the control layout you expect to use; these published specifications do not establish which microwave heats food better.
Published by Pickoryx · Published 2026-10-15
Source checked 2026-10-15 13:04 UTC
Products compared
Product A · ASIN B085P3GCJT
Breville the Smooth Wave BMO850BSS
Last observed offer
$399.95
Per listed package.
Offer eligibility must be confirmed on Amazon.
Checked 2026-10-19 07:25 UTC. Price and availability may change.
Product B · ASIN B084T9RVSB
Breville the Compact Wave Soft Close BMO650SIL
Last observed offer
$249.95
Per listed package.
Offer eligibility must be confirmed on Amazon.
Checked 2026-10-19 17:10 UTC. Price and availability may change.
Pickoryx may earn a commission from qualifying purchases through the paid Amazon links on this page, at no added cost to you.
The buying question
Should you choose the larger-listed Smooth Wave BMO850, or the smaller-footprint Compact Wave BMO650 with its dedicated everyday shortcuts and Food Menu?
The BMO850 has a listed 1.2 cu. ft./34 L cavity and larger listed width and depth, plus Sensor iQ and 15 smart presets. The BMO650 is listed at 0.9 cu. ft./25 L with a smaller listed width and depth and one-touch Reheat, Defrost, Popcorn and Beverage buttons plus a Food Menu.
Quick verdict
Choose Breville the Smooth Wave BMO850BSS if
- You want the larger listed cavity, 1.2 cu. ft./34 L, and the measured counter can accommodate the BMO850's listed 20.4-inch width and 17.5-inch depth.
- You prefer selecting from the BMO850's Sensor iQ and smart-preset workflow, including Smart Cook, Smart Defrost and Smart Reheat.
Choose Breville the Compact Wave Soft Close BMO650SIL if
- Your counter is better suited to the BMO650's smaller listed 19.1-inch width and 16.4-inch depth, and its listed 0.9 cu. ft./25 L cavity is enough for your intended dishes.
- You prefer the BMO650's dedicated Reheat, Defrost, Popcorn and Beverage shortcuts and its Food Menu.
When the recommendation changes
- Measure the counter location and required clearances: the BMO850 is listed as wider, deeper and taller, so a tight placement can favor the BMO650 even if the larger cavity appeals.
- If you regularly use larger dishes, compare their actual dimensions with each microwave's turntable and interior before ordering; nominal cavity capacity alone does not guarantee that a particular dish fits.
The differences that matter
Capacity And Counter Placement
What this changes: The models trade listed cavity capacity against exterior counter space; measure the location and the dishes you expect to use.[1, 2, 3, 4]
Control And Cooking Workflow
What this changes: The documented controls support a preference choice between the BMO850's sensor-and-preset menu and the BMO650's dedicated task buttons and Food Menu, not a cooking-performance ranking.[1, 2, 3, 4]
Best for your routine
A shopper who wants the larger listed cavity and has measured enough counter width and depth for the BMO850.
Best fit: Breville the Smooth Wave BMO850BSS
Based on listed features, not comparative testing.
Breville lists the BMO850 at 1.2 cu. ft./34 L, compared with 0.9 cu. ft./25 L for the BMO650. The larger nominal cavity is a capacity-fit reason to consider it, not proof that every larger dish will fit or that it heats better.
A shopper whose measured counter favors the BMO650's smaller listed exterior and who prefers dedicated buttons for common tasks.
Best fit: Breville the Compact Wave Soft Close BMO650SIL
Based on listed features, not comparative testing.
The BMO650 is listed with less width and depth and provides named Reheat, Defrost, Popcorn and Beverage buttons plus a Food Menu. Check actual turntable and dish dimensions if fit is close.
Value and trade-offs
One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.
If one model costs more when you shop, weigh the difference against whether its listed cavity, measured exterior fit and control workflow matter for your kitchen. No dollar premium or value threshold is established here.
Price history was not evaluated, so purchase timing is unknown. Check the current offer when you are ready to buy.
Limitations
- Capacity and exterior dimensions are manufacturer-listed values, not a guarantee that a particular plate, dish or counter location will fit. The instruction books list turntable diameters of 12.4 inches for the BMO850 and 10.6 inches for the BMO650; check your dish dimensions and required clearances.
- No comparable heating test was used. Sensor, inverter and preset descriptions are control features, not evidence that one microwave cooks more evenly, quickly or safely.
- Pickoryx did not test either microwave hands-on.
Questions shoppers ask
Does the Smooth Wave have a larger listed cavity?
Yes. Breville lists the BMO850 at 1.2 cu. ft./34 L and the BMO650 at 0.9 cu. ft./25 L. The BMO850 also has a larger listed exterior. For a particular dish, compare its dimensions with the microwave's turntable and interior rather than relying on nominal volume alone.
How do the control layouts differ?
Breville describes the BMO850 around Sensor iQ and 15 smart presets, while the BMO650 has one-touch Reheat, Defrost, Popcorn and Beverage buttons plus a Food Menu. Pick the layout whose named tasks match your routine; these controls do not establish which model produces better results.
Methodology and sources
Compared Breville's U.S. product pages and U.S. instruction books for listed cavity capacity, outside dimensions, turntable diameter and documented controls. The exact ASINs and part numbers were checked against the current retail detail pages and the corresponding Breville U.S. product pages. No performance test or price-history conclusion was used.
AI assistance organized published product details; Pickoryx did not measure or test either microwave hands-on.
View 4 sources
- 1.the Smooth Wave | Breville (US)Breville · Official specifications · Source checked 2026-10-15 13:04 UTC
Evidence used on this page
- U.S. product page: Sensor iQ, Power Smoothing Inverter, 15 smart presets and LCD (lines 36–38); listed exterior dimensions W × D × H (lines 50–56); page links its BMO850 U.S. instruction book (line 69).: Breville's U.S. BMO850 page describes its Sensor iQ and preset workflow and lists width and depth as 20.4 × 17.5 inches.
- 2.Instruction Book – BMO850 Series (USCM K24)Breville · Official specifications · Source checked 2026-10-15 13:04 UTC
Evidence used on this page
- U.S. BMO850-series instruction book; specifications on printed page 11 list capacity 1.2 cu. ft./34 L, outside dimensions 20.4 W × 17.5 D inches with handle and 12.5 H inches, and a 12.4-inch turntable. Operating instructions describe Sensor iQ / Smart Cook and Smart Reheat controls. The product page links this manual; the official PDF's indexed text supplies the specifications.: Breville's BMO850 U.S. instruction book lists 1.2 cu. ft./34 L capacity and the 12.4-inch turntable. Its published outside height is 12.5 inches; the product page rounds/lists it as 12.4 inches. The main result uses the current U.S. product page dimensions and uses the manual for capacity and turntable only.
- 3.the Compact Wave Soft Close | Breville (US)Breville · Official specifications · Source checked 2026-10-15 13:04 UTC
Evidence used on this page
- U.S. product page: 25 L capacity and one-touch Reheat, Defrost, Popcorn and Beverage buttons plus the Food Menu (lines 30–48); listed exterior dimensions W × D × H (lines 72–78); page links its BMO650 U.S. instruction manual (line 92).: Breville's U.S. BMO650 page describes its listed capacity and shortcuts and lists width and depth as 19.1 × 16.4 inches.
- 4.Instruction Book – BMO650 Series (USCM J23)Breville · Official specifications · Source checked 2026-10-15 13:04 UTC
Evidence used on this page
- U.S. BMO650-series instruction book; operating/control section on printed pages 15–17 explains the named task buttons and Food Menu; specifications on printed page 11 list a 10.6-inch turntable and 0.9 cu. ft./25 L capacity. The product page links this manual.: Breville's BMO650 U.S. instruction book confirms the 10.6-inch turntable and describes the Food Menu and task-button workflow, including quantity choices for selected functions.