Microwave ovens have become indispensable in modern kitchens, offering convenience, speed, and versatility in cooking. Among the plethora of options available, Panasonic has consistently stood out with its range of countertop microwave ovens, known for reliability, performance, and innovative features. Two models that often attract attention for home use are the Panasonic NN-SB438S and the Panasonic PAN-NN-SC67NS.
Both microwaves are designed to meet the demands of contemporary kitchens, but they target slightly different user needs. While the NN-SB438S is celebrated for its compact design and practical functionality, the PAN-NN-SC67NS appeals to users seeking advanced cooking features and larger capacity. Understanding the nuances between these two models can help buyers make an informed decision that suits their lifestyle and kitchen requirements.
| Feature / Specification | Panasonic NN-SB438S | Panasonic PAN-NN-SC67NS |
|---|---|---|
| Type | Compact Countertop Microwave | Countertop Microwave with Advanced Features |
| Power Output | 900 Watts | 1200 Watts |
| Capacity | 0.8 cu. ft. | 1.6 cu. ft. |
| Control Panel | Touchpad with Dial | Touchscreen with Inverter Technology |
| Cooking Programs | 6 Pre-set Programs | 10+ Pre-set Programs |
| Inverter Technology | No | Yes |
| Sensor Cooking | No | Yes |
| Dimensions (WxHxD) | 19.5 x 12.3 x 15.5 inches | 24 x 14 x 20 inches |
| Weight | 30 lbs | 40 lbs |
| Energy Efficiency | Moderate | High |
| Price Range | Affordable | Premium |
At first glance, both models appear to be robust countertop microwaves, but the differences lie in their performance, cooking technology, capacity, and user interface. The NN-SB438S is designed as a straightforward, practical solution for everyday reheating and basic cooking tasks, making it ideal for small families, apartments, or offices. On the other hand, the PAN-NN-SC67NS combines higher power output, inverter technology, sensor cooking, and a larger interior, which makes it suitable for users who want versatility in cooking complex dishes, defrosting quickly, or preparing meals with even heat distribution.
The Panasonic NN-SB438S is a compact, no-nonsense countertop microwave designed for practicality. Its 900-watt power output is sufficient for reheating, defrosting, and cooking simple meals. The touchpad and dial interface makes it easy to select power levels and cooking times, catering to users who prefer straightforward operation without unnecessary complexity.
This model is particularly suitable for smaller kitchens, dorm rooms, or offices where space is at a premium. Its compact size and lighter weight make it portable and easy to fit on crowded countertops. While it does not include advanced features like inverter technology or sensor cooking, it delivers reliable, predictable performance for everyday tasks.

Panasonic NN-SB438S Compact Microwave Oven Review
The Panasonic PAN-NN-SC67NS is a more advanced and versatile microwave oven, targeting users who want precision and convenience in cooking. Its 1200-watt output, combined with inverter technology, allows for even heat distribution and faster cooking times. The inclusion of sensor cooking ensures that meals are cooked perfectly without constant monitoring, adjusting power and time based on food moisture and temperature.
With a 1.6 cu. ft. capacity, this microwave accommodates larger dishes or multiple items simultaneously, making it ideal for families or avid home cooks. The touchscreen interface offers intuitive operation with multiple pre-programmed cooking modes, including popcorn, frozen meals, and softening butter or chocolate. Its larger size and premium features make it a kitchen centerpiece rather than just a convenience appliance.

Panasonic PAN-NN-SC67NS Countertop Microwave Oven Review
| Feature | NN-SB438S | PAN-NN-SC67NS |
|---|---|---|
| Touchscreen vs Touchpad | Touchpad with Dial | Touchscreen |
| Inverter Technology | No | Yes |
| Sensor Cooking | No | Yes |
| Pre-set Programs | 6 | 10+ |
| Auto Defrost | Yes | Yes, with moisture sensor |
| Child Lock Feature | Yes | Yes |
| Turntable | Yes | Yes, larger diameter |
In practical terms, the PAN-NN-SC67NS outperforms the NN-SB438S in cooking efficiency. The inverter technology ensures food heats evenly without overcooking edges, which is a common drawback in traditional microwaves like the NN-SB438S. While the NN-SB438S handles reheating and simple cooking adequately, it requires more attention and adjustments for larger or unevenly shaped foods.
Sensor cooking in the PAN-NN-SC67NS is a game-changer-it automatically measures humidity inside the microwave to optimize cooking time, ensuring consistent results for popcorn, casseroles, and frozen meals.
This difference in capacity impacts both cooking versatility and storage convenience, with the NN-SB438S excelling in tight spaces and the PAN-NN-SC67NS excelling in meal preparation flexibility.
The PAN-NN-SC67NS is more energy-efficient due to its inverter technology, which allows precise power adjustments and reduces wasted electricity. The NN-SB438S, while functional, operates at full power cycles during cooking, which can lead to slightly higher energy usage, especially for longer cooking tasks.


Choosing between the NN-SB438S and PAN-NN-SC67NS comes down to capacity, cooking sophistication, and budget. If your priority is compact size, affordability, and simplicity, the NN-SB438S is a strong contender. However, if you desire advanced cooking features, larger capacity, and efficient energy usage, the PAN-NN-SC67NS offers a significantly enhanced experience with precise cooking performance.
The Panasonic NN-SB438S offers 1200 watts of cooking power with a 1.2 cubic foot capacity, making it suitable for medium to large households. In comparison, the Panasonic PAN-NN-SC67NS has 1250 watts of power and a slightly larger capacity of 1.2 cubic feet, offering marginally faster cooking times and slightly more space for larger dishes.
The NN-SB438S features a touchpad interface with an intuitive display and preset cooking functions, whereas the PAN-NN-SC67NS includes a more advanced control panel with Panasonic’s Inverter technology and a sensor cooking feature, allowing for more precise heating and defrosting without overcooking.
Yes, both models use Panasonic’s inverter technology, but the PAN-NN-SC67NS is optimized for more uniform cooking due to its advanced sensor functions. This allows it to adjust power levels dynamically, potentially reducing energy consumption and preventing overheating in delicate foods compared to the NN-SB438S.
The PAN-NN-SC67NS has an advantage for precise defrosting and reheating thanks to its sensor technology, which monitors food moisture and adjusts power accordingly. The NN-SB438S performs well for general reheating and standard cooking but may require manual adjustments for delicate items. For baking or cooking that requires even heat distribution, both models are capable, but the SC67NS provides slightly more consistent results.
The NN-SB438S has a sleek stainless steel finish with a straightforward design, suitable for modern kitchens and easy to clean. The PAN-NN-SC67NS also features a stainless steel exterior but includes a larger digital display and more ergonomic control layout. Both are durable, but the SC67NS may be preferred by users who value advanced usability and a more contemporary look.