Verified price
$259.95 (Aug 4, 2026)
Capacity
1.2 cu ft, countertop or built-in
Power
1200W with inverter technology
Sensor
Genius Sensor cooking and reheating
Model
NN-SN686S, stainless steel
Pros
- True continuous power at every level, not on-off pulsing
- Sensor reheating that actually judges doneness
- 1200W means faster cooking than the 1000W field
- Countertop or built-in installation flexibility
Cons
- Costs about twice what conventional rivals charge
- Understated design, ordinary keypad
Most microwaves lie about their power levels, and the NN-SN686S is the affordable machine that does not. Set a conventional microwave to 50 percent and it blasts 100 percent power half the time, resting the other half; that duty-cycle trick is why leftovers come out lava at the edges and cold in the middle. Panasonic's inverter actually delivers a continuous 50 percent, and the difference is not marketing, it is physics you can taste in anything delicate: fish, rice, cheese sauces, defrosted ground beef that is not gray at the edges.
This specific model has been the category's reference for years, and the formula holds: 1200 watts, the Genius Sensor that reads steam and stops when the food is ready rather than when the timer runs out, and a cavity that can go built-in if your kitchen prefers it. The Toshiba below is the right call for buyers who will not use any of that. For everyone else, the extra $126 buys the single biggest quality upgrade the category offers. It pairs with our air fryer picks as the reheat-and-crisp counter duo.
Our Pick
The machine that defines what a good microwave is. Panasonic's inverter technology delivers genuinely continuous partial power instead of pulsing full blast on and off, which is the difference between salmon that reheats moist and salmon with cooked-hard edges. Add the Genius Sensor, 1200 watts, and a 1.2 cubic foot cavity that also installs built-in, and this is the default recommendation.
Anyone who reheats real food rather than just popcorn and coffee. Leftovers, defrosting, delicate dairy and eggs: everything a standard microwave does crudely, an inverter does gently, and this is the most proven inverter machine on the market.
What we don't like
It costs roughly double the price of a good conventional 1.2 cubic foot microwave, and the sleek flat door hides a fairly ordinary keypad. If your microwave diet truly is popcorn and mugs of water, the Toshiba below does that for $126 less.















