Panasonic Microwave Oven NN-SN686S Stainless Steel Countertop/Built-In with Inverter Technology and Genius Sensor, 1.2 Cubic Foot, 1200W

Panasonic Microwave Oven NN-SN686S Stainless Steel

amazon.com
4.3 (8.5K reviews)
In Stock
$259.95
Updated: August 8, 2026
Price as of Aug 8, 2026. We earn from qualifying purchases.

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When your counter space is at a premium but you still need reliable reheating for family dinners or quick defrosts, this 1.2 cubic foot microwave with inverter technology fits neatly while delivering even cooking without hot spots. The Genius Sensor automatically tweaks power and time for foods like soups or meats, and after a few days, you’ll notice meals come out consistently fresh-plus the keep warm feature holds them just right until serving. It takes a moment to set the child lock initially, but the compact stainless steel design and 1200W power make it a straightforward swap for countertop or built-in setups.

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Who Is This Product For?

This countertop microwave suits busy parents reheating school lunches or family leftovers on tight schedules, where even heating without hot spots saves time during weeknight rushes. Urban apartment dwellers with limited counter space find it workable for quick takeout warm-ups and defrosting proteins for weeknight meals. Retirees living alone appreciate the straightforward controls for simple tasks like warming soup, especially with features that hold food at serving temperature. Homeowners upgrading kitchens lean toward it for reliable performance in daily cooking routines, handling everything from defrosting meat to sensor-based reheating without constant adjustments.

Key Features & Benefits

Inverter Technology with Turbo Defrost

The inverter delivers a steady stream of power at 1200 watts, avoiding the on-off cycling of traditional models. This means food cooks more evenly, reducing dry edges on reheated meals or partially frozen centers in defrosted chicken. It shines during busy evenings when you pull ground beef from the freezer and need it thawed in under half the usual time without cooking the outside.

Genius Sensor and Preset Menus

The built-in sensor detects steam to automatically tweak power and cooking time for items like popcorn or vegetables. With 14 presets, it handles common foods without guesswork-select once and walk away. This helps most when juggling dinner prep, as it cuts down on overcooking potatoes or underheating casseroles during family meals.

Compact Design and Capacity

At 1.2 cubic feet with a 13.4-inch turntable, it fits narrower counters while offering room for a dinner plate or small casserole. Internal space measures about 10 by 14 by 14 inches, making it lighter and less bulky than larger units. Apartment renters notice the difference in small kitchens, where it leaves room for other appliances without feeling crowded.

Keep Warm and Child Lock

The keep warm function maintains gentle heat for soups or desserts after cooking, keeping them ready without reheating later. Paired with the child lock, it prevents accidental starts. Retirees use this for lingering over meals alone, while families rely on the lock during after-school chaos when kids are nearby.

What to Consider When Buying

Check your counter depth first- this unit needs about 15 inches clear, and the push-button door adds a bit more swing space. Usability comes down to the membrane keypad and 12-hour clock; they’re responsive but take a couple uses to memorize for quick operation. Durability holds up in daily family use, though stainless steel shows fingerprints over time. Common mistakes include overlooking the 1480W power draw, which might bump electric bills slightly in heavy use, or assuming built-in means trim kit included-it’s countertop or basic built-in capable but verify your setup. Another pitfall: skipping interior dimension checks, leading to returns if plates don’t rotate freely.

How to Choose the Right One

Start by measuring your counter space against the 13.4-inch turntable and overall footprint. Next, match your needs: prioritize inverter for even defrosts if you cook proteins often, or sensor presets for hands-off reheating. Test decision factors with this checklist-does it fit under cabinets? Is 1200W enough for your dishes? Read recent reviews for noise during operation and door sturdiness after months. If space trumps power, this compact option edges out bulkier models; for heavy baking, look elsewhere. Narrow to units with child lock if kids access it, and confirm 120V compatibility for standard outlets.

Why This Is a Smart Choice

Over repeated use, the inverter technology microwave settles into routines with fewer adjustments needed, as meals come out consistent week after week. Families see less waste from overcooked edges, and the sensor learns your habits indirectly through reliable results. It handles 10 power levels flexibly for varied tasks, from gentle warming to full defrosts. Trade-offs like occasional keypad beeps during programming fade with familiarity, and the stainless finish weathers daily wipes without major wear. Long-term, the even cooking builds quiet confidence in meal prep.

Care & Maintenance Tips

  • Wipe the interior after each use with a damp cloth and mild soap to prevent buildup-dry spots from inverter cooking lift easier when fresh.
  • Run a bowl of lemon water on high for five minutes monthly to loosen grease; it freshens without harsh chemicals.
  • Avoid metal utensils or foil to prevent sparking, especially after the turntable shifts slightly with heavy plates over time.
  • Lock the child safety feature when not in use, and clean the stainless exterior with glass cleaner for smudges that accumulate from counter splashes.
  • Check the door seal quarterly for gaps, as repeated opens soften it gradually- a quick press test keeps performance steady.

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FAQs

Q: Will this Panasonic microwave oven fit on my apartment counter next to the coffee maker?

Its compact design measures 13.4 inches across for the turntable, with internal dimensions of 9 15/16 x 13 15/16 x 14 3/8 inches, so it slots into tighter spaces without dominating the counter. Users in small kitchens note it leaves room for daily prep alongside other appliances. Just measure your spot to confirm, as the stainless steel body adds a bit of width externally.

Q: How does the inverter technology handle defrosting a pack of chicken from the freezer?

The Inverter Technology with Turbo Defrost delivers a steady power stream, cutting defrost times compared to traditional cycles and reducing the risk of partial cooking at the edges. It works well for meats or frozen veggies, where you select the food type and weight for automatic adjustments. Over time, folks find it consistent for weekly meal prep, though thicker cuts might need a quick flip midway.

Q: Can I reheat soup for dinner and keep it warm without it drying out?

Yes, the Keep Warm feature holds soups, gravies, or desserts at a steady temperature until serving, using the inverter for even results without constant monitoring. It’s handy for family dinners where timing varies, keeping food fresh for 20-30 minutes typically. The membrane keypad makes it simple to set, but stirring occasionally helps if it’s a full bowl.

Q: What’s involved in using it as a built-in microwave under a cabinet?

It supports built-in installation with proper trim kits, fitting standard cabinet cutouts thanks to its thinner profile. Countertop use is straightforward, but built-in setups require checking your cabinet depth against the 14 3/8-inch internal spec plus exterior clearance for ventilation. Some users mention needing minor adjustments for a snug fit in older kitchens.

Q: How easy is cleaning the interior after everyday use like popcorn or reheating takeout?

The stainless steel interior wipes down quickly with a damp cloth and mild cleaner, as splatters don’t bake on thanks to the even heating from Genius Sensor. The 340mm turntable lifts out for thorough washing, which helps with routine maintenance. A subtle limitation is that greasy residues might need a couple passes if not addressed right after use.

Q: Does the 1200W microwave power make a difference for quick family meals versus my old basic model?

At 1200 watts with 10 power levels, it reheats plates evenly without hot spots, outperforming lower-wattage units on busy nights. The Genius Sensor auto-adjusts for foods like pizza or casserole, saving guesswork. Users switching from cheaper models appreciate the smoother results, though it draws up to 1480W total so peak usage shows slightly on the electric bill.

Q: With kids around, how reliable is the child lock during daily routines?

The child lock engages easily via the keypad, preventing accidental starts or changes while you’re stepping away. It’s a practical safeguard for households with young ones, holding firm through regular use. After months, it remains responsive, though remembering to disengage it before quick reheats becomes part of the routine.

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