LG WM3400CW 4.5 cu ft Front-Load Washer – vs LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer,
Updated July 2026 — LG WM3400CW 4.5 cu ft Front-Load Washer – wins on price and noise, LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer, wins on smart tech and speed.
The LG WM3400CW offers excellent value with quiet operation and effective cleaning, while the LG WM4000HBA provides advanced smart features and faster wash cycles. Choose based on your priorities.
Why LG WM3400CW 4.5 cu ft Front-Load Washer – is better
Price
LG WM3400CW is $170 cheaper.
Noise Level
LG WM3400CW has LoDecibel Quiet Operation.
Cleaning Technology
LG WM3400CW uses 6Motion Technology.
Why LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer, is better
Smart Features
LG WM4000HBA includes ThinQ Technology.
Wash Speed
LG WM4000HBA features TurboWash 360 Technology.
Build Quality
LG WM4000HBA has a tempered glass door.
Overall score
Specifications
| Spec | LG WM3400CW 4.5 cu ft Front-Load Washer – | LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer, |
|---|---|---|
| Model | WM3400CW | WM4000HBA |
| Capacity | 4.5 cu. ft. | 4.5 cu. ft. |
| Price | $729.00 | $899.00 |
| Noise Level | LoDecibel | Not specified |
| Smart Features | None | ThinQ |
| Wash Technology | 6Motion | TurboWash 360 |
Dimension comparison
Overview of the LG WM3400CW and LG WM4000HBA
When comparing the LG WM3400CW and LG WM4000HBA, the first takeaway is that they both offer similar capacities and high-efficiency performance, but they cater to different user preferences. The LG WM3400CW is priced at $729.00, making it about 17% cheaper than the LG WM4000HBA, which retails for $899.00. Both models feature a 4.5 cu. ft. capacity suitable for family-sized loads, but each offers unique features that may appeal to different users.
Design and Build Quality
In terms of design, both washers boast a sleek aesthetic but differ in finish. The LG WM3400CW comes in a classic white, while the LG WM4000HBA features a modern black steel finish. This styling difference is crucial for buyers who prioritize the look of their appliances in their laundry rooms. Additionally, the LG WM4000HBA includes a tempered glass door, which not only enhances its modern appearance but also adds durability. Each model has been built to withstand daily use, but the choice of finish may influence your overall satisfaction.
Washing Technology
The LG WM3400CW utilizes 6Motion Technology, which allows for up to six different wash motions to effectively clean clothes while minimizing fabric wear. This capability ensures that laundry is cleaned gently yet thoroughly. Conversely, the LG WM4000HBA offers TurboWash 360 Technology, which is designed for a faster and more efficient wash cycle. Both technologies claim to enhance washing performance, but the choice between them may depend on whether you prioritize speed or a variety of washing options.
Noise Level
If noise is a concern, the LG WM3400CW has the advantage with its LoDecibel Quiet Operation feature. This model aims to minimize noise during both wash and spin cycles, making it ideal for apartments or homes where quiet operation is necessary. On the other hand, the LG WM4000HBA does not highlight specific noise-reduction technologies, which might be a consideration for potential buyers who are sensitive to sound during laundry operations.
Smart Features
A significant difference between these two models lies in their smart technology capabilities. The LG WM4000HBA includes ThinQ Technology, allowing users to control their laundry remotely via the ThinQ app. This feature enhances convenience, especially for busy households. In contrast, the LG WM3400CW lacks smart connectivity options, which may deter tech-savvy consumers looking for modern functionalities in their appliances.
Cleaning Performance
When it comes to cleaning performance, both washers are ENERGY STAR certified, ensuring efficient energy and water use. The LG WM3400CW emphasizes its 6Motion Technology for effective cleaning, while the LG WM4000HBA promotes its TurboWash 360 Technology, which is designed to clean clothes more thoroughly in less time. Both washers have unique methods for achieving optimal cleaning results, but the effectiveness may vary depending on the type of laundry being washed.
Maintenance and Care
In terms of maintenance, both washers are designed to require minimal upkeep. However, the LG WM4000HBA has the added benefit of proactive customer care features via the ThinQ app, which may help users identify maintenance needs before they become issues. The LG WM3400CW, while efficient and reliable, does not offer this level of monitoring, which could lead to more manual oversight for maintenance tasks.
Which should you buy?
Ultimately, the choice between the LG WM3400CW and the LG WM4000HBA hinges on your specific needs and preferences. If you're looking for a budget-friendly option with excellent washing technology and quiet operation, the LG WM3400CW is the better choice at $729.00. However, if you value smart technology and faster wash cycles, the LG WM4000HBA, priced at $899.00, offers features that justify its higher price. Each model has its strengths, so consider what features matter most to you before making a decision.

