Bosch WAT28402UC vs WAT28400UC: Which 300‑Series Compact Washer Is Better?
The WAT28402UC is the final and most refined revision of Bosch’s 300‑Series compact washer line.
The WAT28400UC is the earlier, widely sold baseline model.
Both share the same 24‑inch footprint, 2.2 cu. ft. drum, and 1400 RPM spin speed — but the WAT28402UC benefits from quieter operation and updated internal components.
Bosch WAT28402UC
Front‑Load Washer
- 2.2 cu. ft.
- 1400 RPM
- 52 dBA
- No
Ideal for Smart Homes
Bosch WAT28400UC
Front‑Load Washer
- 2.2 cu. ft.
- 1400 RPM
- 54 dBA
- No
Best for Compact Spaces
| Feature | WAT28402UC | WAT28400UC |
|---|---|---|
| Capacity | 2.2 cu. ft. | 2.2 cu. ft. |
| Spin Speed | 1400 RPM | 1400 RPM |
| Noise Level | 52 dBA | 54 dBA |
| Dimensions | 33.25 in × 23.5 in × 24.25 in | 33.25 in × 23.5 in × 24.25 in |
| Energy Efficiency | Energy Star Certified | Energy Star Certified |
| Smart Features | No | No |
Key Takeaways
- The WAT28402UC is the final, refined revision of the 300‑Series platform.
- The WAT28400UC remains a reliable, simpler baseline model.
- Both share identical dimensions, capacity, and spin performance.
Choose WAT28402UC if…
- You want the most refined 300‑Series revision with updated internals.
- You prefer quieter operation and smoother cycle transitions.
- You want the best long‑term reliability within the 300‑Series.
Choose WAT28400UC if…
- You want the lowest price point in Bosch’s compact lineup.
- You prefer a simpler control panel and fewer cycles.
- You don’t need the internal refinements of the later revision.
Dimensions and Fit
Both washers share identical dimensions, making installation considerations straightforward.
If your space fits one, it fits the other.
Capacity and Drum Design
Both offer the standard 2.2 cu. ft. compact drum.
The WAT28402UC includes refined wash algorithms for mixed‑fabric loads.
Spin Speed and Drying Performance
Both reach 1400 RPM, ensuring short drying times when paired with a ventless dryer.
Noise and Vibration
The WAT28402UC runs slightly quieter thanks to internal revisions and improved balancing.
Smart Features
Neither washer includes Wi‑Fi or Home Connect.
Energy Efficiency
Both are Energy Star certified and optimized for low water usage.
Which Bosch Washer Should You Choose?
Choose the WAT28402UC if you want the most refined 300‑Series revision.
Choose the WAT28400UC if you want the lowest price and simplest feature set.