Panasonic

Panasonic NN-SU656W 1.3 cu ft Countertop Microwave - White

4.3 (3337 reviews)
4 inch

Compact 1100-watt countertop microwave with 1.3 cu ft capacity, sensor cooking, and a Keep Warm feature.

$226.99*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 20, 2026.Price and availability are subject to change.

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Overview

The Panasonic NN-SU656W is a 1.3 cubic foot countertop microwave that delivers 1100 watts of cooking power in a design engineered to minimize its physical footprint. Panasonic achieves this by devoting less internal space to electronics, resulting in a unit that can be up to eight pounds lighter than conventional microwaves of similar capacity. The 13.4-inch turntable accommodates standard dinner plates, and the Genius Sensor takes the guesswork out of reheating and cooking by automatically adjusting power levels and timing based on the food inside.

Everyday convenience features include seven preset auto cook menus, a Quick 30-second start button, a dedicated popcorn button with three power levels for different bag sizes, delay start and timer functions, and a Keep Warm mode that holds prepared foods at serving temperature. The child safety lock adds peace of mind in households with young children. With its combination of solid power output, sensor-driven cooking, and a space-conscious design, the NN-SU656W is aimed at users who want reliable microwave performance without surrendering a large portion of their countertop.

Key Features

Power + innovation - 1100 watts of high power for fast, even cooking and delicious results

Microwave controls - 7 preset auto cook menu items, 13. 4 inch turntable; delay start and timer; more/less control; child safety lock; quick 30Sec and popcorn button with 3 cooking levels

Minimum countertop footprint - smart, compact design devotes less space to electronics and far more interior capacity. Up to eight pounds lighter than conventional microwave ovens

Microwave popcorn – choose from 3 power level options, depending on the size of the microwave popcorn bag, for perfect popping every time

Keep Warm feature – microwave keeps foods like vegetables, soups, hors d'oeuvres, gravies, sauces and desserts Warm and delicious in the oven until they're ready to serve

Panasonic kitchen appliances reflect Japan’s relentless innovation and high-tech heritage, delivering not only smarter, faster meals but also a seamless, elevated cooking experience you can taste in every bite.

Specifications

Brand
Panasonic
Model
NN-SU656W
Capacity
1.3 cu. ft.
Wattage
1100 Watts
Color
White
Turntable Size
13.4 inches
Preset Menus
7 Auto Cook Menu Items
Special Features
Genius Sensor, Quick 30sec, Popcorn Button (3 levels), Child Safety Lock, Keep Warm, Delay Start, Timer, More/Less Control
External Dimensions
12-3/8" (H) x 20-17/16" (W) x 16" (D)
Internal Dimensions
9-13/16" (H) x 13-13/16" (W) x 15-3/16" (D)

Pros & Cons

👍 Pros

  • 1100-watt output delivers fast, even cooking across a variety of foods
  • Compact footprint maximizes countertop space while still providing 1.3 cu ft of interior capacity
  • Genius Sensor automatically adjusts power and time, reducing guesswork
  • Keep Warm function holds food at serving temperature until ready
  • Seven preset auto cook menu items simplify common cooking tasks

👎 Cons

  • White-only color option may not match all kitchen decor
  • No convection or inverter technology, limiting advanced cooking versatility
  • Exterior dimensions of over 20 inches wide may still be tight for smaller countertops
  • Plastic construction feels less premium than stainless steel models

Frequently Asked Questions

It operates at 1100 watts of cooking power for fast, even heating.
Yes, it includes Panasonic's Genius Sensor, which automatically adjusts power and cooking time based on the food being prepared.
The NN-SU656W offers 1.3 cubic feet of interior capacity with a 13.4-inch turntable.
It maintains the temperature of cooked foods like soups, vegetables, sauces, and desserts inside the microwave until you are ready to serve them.
Yes, a child safety lock is included to prevent unsupervised operation.