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MicrowaveFit

Frigidaire RMW987-RED vs Nostalgia RMO400RED

The Frigidaire RMW987-RED is 100W more powerful (900W vs 800W), which means faster cooking and more even results. At 20 1/2" wide, the Nostalgia is 1" narrower than the Frigidaire — a meaningful difference in tight spaces.

Bottom line

Choose the Frigidaire if you prioritise faster cooking; go with the Nostalgia if a smaller footprint matters more to you.

Frigidaire RMW987-RED
Frigidaire
RMW987-RED
Small (Compact)
Wins 1 of 4
Nostalgia RMO400RED
Nostalgia
RMO400RED
Small (Compact)
Wins 3 of 4

Spec Comparison

Spec Frigidaire RMW987-RED Nostalgia RMO400RED
Wattage
Higher wattage cooks faster and more evenly.
900W ✓ 800W
Capacity
Larger capacity fits bigger dishes.
0.90 cu ft 0.90 cu ft
Width
Narrower fits tighter counter spaces.
21 1/2" 20 1/2" ✓
Height
Shorter clears low cabinet clearances.
12 3/4" 11 1/2" ✓
Depth
Shallower fits narrow shelves and counters.
16 3/4" 16 1/2" ✓
Turntable
Larger turntable fits bigger plates.
10" 10"
Sensor Cooking
Auto-adjusts time based on steam — no guessing.
No No
Inverter
True variable power for better defrost and reheating.
No No
Convection No No
Air Fry No No
WiFi / Smart No No

✓ indicates the better value for that spec. Ties not marked.

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See the full spec sheet for each model: