Amazon Basics AB-M900SS vs Nostalgia RMO400RED
The Nostalgia RMO400RED is 100W more powerful (800W vs 700W), which means faster cooking and more even results. At 18 11/16" wide, the Amazon Basics is 1 13/16" narrower than the Nostalgia — a meaningful difference in tight spaces.
Bottom line
Choose the Amazon Basics if you prioritise a smaller footprint; go with the Nostalgia if faster cooking matters more to you.
Spec Comparison
| Spec | Amazon Basics AB-M900SS | Nostalgia RMO400RED |
|---|---|---|
| Wattage Higher wattage cooks faster and more evenly. | 700W | 800W ✓ |
| Capacity Larger capacity fits bigger dishes. | 0.90 cu ft | 0.90 cu ft |
| Width Narrower fits tighter counter spaces. | 18 11/16" ✓ | 20 1/2" |
| Height Shorter clears low cabinet clearances. | 10 11/16" ✓ | 11 1/2" |
| Depth Shallower fits narrow shelves and counters. | 14 11/16" ✓ | 16 1/2" |
| Turntable Larger turntable fits bigger plates. | 10 5/8" ✓ | 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.
Amazon Basics AB-M900SS
Sponsored Nostalgia RMO400RED
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See the full spec sheet for each model: