Our take
Panasonic NN-SN686SR is a clearly identified stainless-steel countertop microwave with a 1.2-cu.-ft. cavity and 1,200-W cooking output. Panasonic's current exact-model page also identifies inverter power, Genius Sensor cooking and reheating, and a 13.4-in. turntable. Its exact-model specification sheet gives ten power levels, fourteen auto-cook items, Inverter Turbo Defrost, keep warm, child lock and three-stage cooking. It also identifies a separate 27-in. NN-TK621SS trim kit and opening dimensions for a built-in look. The owner manual classifies the microwave for household use. The historical Amazon row says Renewed, but the current B07YLZWG2F page returned an internal error; that offer condition is not a feature or proof of the current ASIN mapping. Use a tagged exact-model search. This review makes no personal-test, price, stock or buyer-review claims.
Consider NN-SN686SR if you want an exact-model documented stainless 1.2-cu.-ft. inverter microwave with sensor cooking/reheating, 1,200-W output and a specified optional built-in trim-kit route. The manual requires a separate grounded 20-A, 120-V/60-Hz circuit. Cabinet conversion needs the separate NN-TK621SS and the manufacturer's stated opening dimensions; the countertop housing is 20 11/16 W x 12 1/4 H x 15 13/16 D in. The manual identifies household use, not commercial duty. The historical B07YLZWG2F page could not be verified, so find the exact model through the tagged Amazon search and check the current item condition and model label..
NN-SN686SR is not a fit if you require manufacturer-classified commercial foodservice equipment, a microwave larger than 1.2 cu. ft., or a built-in conversion without buying and fitting the specified separate trim kit. The old Renewed listing is not a verified current offer.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The exact-model Panasonic sheet states 1,200 W output, 1.2 cu. ft. and inverter power separately from 1,480 W input.
- Genius Sensor cook/reheat, fourteen auto-cook items, Turbo Defrost, keep warm and three-stage cooking are documented for this code.
- A 13.4-in. turntable and the optional model-specific NN-TK621SS trim-kit path are documented.
What to weigh up
- The 1.2-cu.-ft. cavity is smaller than many family-size countertop options.
- Built-in installation needs the separate NN-TK621SS and the exact cabinet-opening dimensions.
- The owner manual is for household use, and the historical Renewed Amazon ASIN was not verified as a current exact-model page.
The key details
| Model covered | NN-SN686SR |
|---|---|
| Capacity | Panasonic's exact-model product page and specification sheet identify NN-SN686SR as a stainless-steel countertop microwave with 1.2 cu. ft. capacity. |
| Microwave output | The exact-model sheet states 1,200 W cooking output and separately lists 1,480 W power consumption; the owner manual requires a separate, grounded 20-A, 120-V/60-Hz circuit. |
| Cooking approach | The spec sheet documents one-touch sensor cook/reheat, 14 preset auto-cook items, Inverter Turbo Defrost, keep warm, ten power levels, three-stage cooking and child lock. |
| Installation options | Panasonic's spec sheet names the optional 27-in. NN-TK621SS trim kit and its cabinet opening dimensions; the trim kit is sold separately. The owner manual identifies household use. |
| Finish and turntable | The exact-model specification gives a 13.4-in. turntable and dimensions of 20 11/16 W x 12 1/4 H x 15 13/16 D in.; finish is stainless steel. |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
What the features mean for you
Use the complete SN686SR model code
The frozen source row gives Panasonic NN-SN686SR, and Panasonic's USA product page repeats that exact code as SKU NN-SN686SR with a stainless-steel finish. The matching Panasonic specification sheet is headed NN-SN686SR, so this profile is based on the stainless SR variant. The source title's word Renewed describes the historical Amazon offer condition; it is not a suffix or a permanent model feature. The old ASIN did not load in the current check, so it cannot be treated as proof of the present item's identity or condition. Other Panasonic NN-SN68-family models are not merged into this record without a documented exact-model equivalence.
Match on the stated capacity and cooking output
Panasonic specifies a 1.2-cu.-ft. cavity and 1,200 W cooking power for NN-SN686SR. The same sheet separately reports 1,480 W power consumption; the input figure is not a substitute for microwave cooking output in a shortlist. The product page describes inverter technology as delivering a continuous stream of power at lower settings, while the exact spec sheet lists ten power levels and three-stage cooking. These are documented operating features, not a guarantee of measured cooking time or uniformity in every dish. If your priority is a cavity above 1.2 cu. ft., this model will not meet that capacity preference.
Sensor menus add a distinct control path
The exact-model sheet documents one-touch sensor cook and reheat, fourteen preset auto-cook items, Inverter Turbo Defrost, keep warm, Quick 30 and child lock. It names the fourteen menu categories, including oatmeal, breakfast sausage, omelet, quinoa, soup, frozen entrees, potatoes, vegetables, rice, pasta and fish. This is a meaningful distinction from models whose sources list automatic menus without identifying a sensor. The sheet also documents ten power levels and three-stage cooking for manual control. Use sensorCooking as a confirmed feature for NN-SN686SR; do not claim that the sensor covers every food or replaces checking the food during heating.
Plan countertop or optional built-in installation
The product page identifies countertop use and gives body dimensions of 20 11/16 W x 12 1/4 H x 15 13/16 D in. The specification sheet lists a 13.4-in. turntable and names the optional 27-in. NN-TK621SS trim kit. The kit is sold separately; the product sheet gives a 25 1/2-in. cabinet width, 15 5/16-in. cabinet height and 21-in. minimum depth, plus the trim frame dimensions. The owner manual also requires a separate grounded 20-A, 120-V/60-Hz circuit. Verify both the cabinet instructions and electrical provision for the actual installation. Trim-kit compatibility means this specified accessory path is documented; it does not mean the bare microwave is already built in or that any opening will fit.
Keep the duty classification within the manual's scope
The NN-SN686SR owner manual identifies this product as a household microwave. That supports commercialDuty=false in a professional matching path. The Panasonic product page's mention of home, apartment and condo kitchens points in the same direction, but the manual classification is the decisive evidence. Do not interpret the brand's separate professional-kitchen website navigation or the availability of a trim kit as evidence that this household model is rated for restaurant throughput. A shared-use foodservice requirement should filter it out rather than treating high output or sensor controls as a commercial rating.
Search by model and verify any renewed listing
The frozen record's B07YLZWG2F Amazon page returned an internal error during the current check. The Panasonic product page proves that NN-SN686SR is a real manufacturer model; it does not prove that this Amazon ASIN currently points to the model, that a renewed unit is available, or what condition a particular offer has. Use the tagged exact-model Amazon search, then read the seller's actual item title, condition and included parts before purchase. No current offer price, inventory status or buyer-review summary is asserted here.
What else to compare
If you want a similarly sensor-equipped countertop choice with a larger 1.3-cu.-ft. cavity, Panasonic NN-SD65LS has a documented 1,100-W output and Genius Sensor, but its manual requires a dedicated grounded 20-A circuit. NN-SN686SR offers 1.2 cu. ft., 1,200 W, a 13.4-in. turntable and the documented NN-TK621SS installation option. For compact stainless use, RCA RMW727 is 0.7 cu. ft. and 700 W, with no confirmed sensor or trim-kit support.
Before you buy
What are the capacity and microwave output?
Panasonic's exact-model specification gives NN-SN686SR a 1.2-cu.-ft. capacity and 1,200 W cooking output; 1,480 W is the separate power-consumption figure.
Does this model have inverter and sensor cooking?
Yes. Panasonic's exact-model page identifies Inverter technology and Genius Sensor; the specification sheet documents sensor cook and reheat.
How many auto-cook items are documented?
The NN-SN686SR specification sheet lists fourteen preset auto-cook items and separately documents sensor cook/reheat and other control modes.
Which trim kit fits NN-SN686SR?
Panasonic's specification sheet names optional 27-in. trim kit NN-TK621SS and gives its cabinet-opening requirements; confirm the opening before ordering.
Is it rated for restaurant or commercial use?
The exact-model owner manual identifies NN-SN686SR for household use, so it is not classified here as commercial foodservice equipment.
What electrical circuit does the manual require?
The NN-SN686SR owner manual calls for a separate, grounded 20-A, 120-V/60-Hz outlet; check that provision for the planned installation.
Does the historical Renewed ASIN prove the current product?
No. B07YLZWG2F returned an internal error, so use the tagged NN-SN686SR search and confirm the exact model and condition on the current offer.
What is the turntable size?
Panasonic's NN-SN686SR specification lists a 13.4-in. turntable; the product page also identifies that exact diameter.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Panasonic USA exact-model product page, Panasonic-authored NN-SN686SR specification sheet and household-use owner manual ↗ — checked October 5, 2026.
- Panasonic USA exact-model product page: SKU NN-SN686SR, stainless finish, countertop identity, 1.2-cu.-ft. capacity, 1,200-W output, inverter, Genius Sensor and 13.4-in. turntable. ↗ — checked October 5, 2026.
- Panasonic-authored NN-SN686SR specification sheet: output and input, ten levels, sensor cook/reheat, 14 auto-cook items, keep warm, dimensions, turntable, child lock and optional NN-TK621SS trim-kit/opening details. ↗ — checked October 5, 2026.
- Panasonic NN-SN686SR owner manual; exact-model cover and household-use classification. ↗ — checked October 5, 2026.
- Historical Amazon ASIN lookup; current page returned HTTP 500 and did not verify the current exact model or renewed offer. ↗Paid link · We may earn a commission. — checked October 5, 2026.
The decision
Panasonic NN-SN686SR is a household stainless countertop inverter microwave with 1.2 cu. ft., 1,200-W output, Genius Sensor, fourteen auto-cook items, keep warm and a 13.4-in. turntable. Its exact-model sheet names optional NN-TK621SS trim-kit installation with defined opening dimensions. Commercial-duty is false. The historical Renewed B07YLZWG2F ASIN is not currently verified, so use the tagged exact-model search and confirm offer condition.
Is it the right fit?
Check the exact model and today’s offers on Amazon.