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LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer, vs LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart

Updated August 2026 — LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer, wins on design and sales rank, LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart wins on capacity and price.

The LG WM4000HBA offers advanced cleaning features and a modern design, while the LG WT8400CW provides larger capacity and ergonomic convenience. Choose based on your laundry needs.

Why LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer, is better

Advanced Features

Includes Allergiene Cycle for allergy sufferers.

Modern Design

Sleek front-load design with tempered glass door.

Higher Sales Rank

Ranked 1673 compared to 1817.

Why LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart is better

Larger Capacity

5.5 cu. ft. vs 4.5 cu. ft.

Ergonomic Design

EasyUnload feature for comfortable access.

Lower Price

$849.00 vs $899.00.

Overall score

LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer,
85
LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart
79

Specifications

SpecLG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer,LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart
ModelWM4000HBAWT8400CW
TypeFront LoadTop Load
Wi-FiYesYes
TurboWash360 Technology3D Technology
Allergiene CycleYesNo

Dimension comparison

LG WM4000HBA 4.5 Cu. Ft. Smart Front-Load Washer,LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart

Overview of the LG WM4000HBA and LG WT8400CW

The LG WM4000HBA is priced at $899.00, while the LG WT8400CW is slightly more affordable at $849.00, making it about 6% cheaper. Both washers are designed with advanced technology to enhance laundry efficiency, but they cater to different user preferences with their respective front-load and top-load designs. The WM4000HBA is ranked 1673 in sales, while the WT8400CW holds a rank of 1817, indicating their competitive standing in the market.

Design and Capacity

The LG WM4000HBA features a 4.5 cu. ft. capacity, which is suitable for moderate laundry needs, while the LG WT8400CW offers a larger 5.5 cu. ft. capacity. This additional space in the WT8400CW allows users to fit more laundry in each load, making it especially advantageous for larger households. The front-load design of the WM4000HBA is sleek and modern, highlighted by its tempered glass door, whereas the WT8400CW’s top-load design includes an ergonomic EasyUnload feature, which makes loading and unloading more comfortable.

Technology and Features

Both washers incorporate advanced technology to optimize the washing experience. The LG WM4000HBA includes TurboWash 360 Technology and is compatible with the ThinQ app, allowing remote control of laundry settings. This model also features an AI Fabric Sensor and Smart Pairing capabilities. In contrast, the LG WT8400CW also supports ThinQ app functionality and utilizes built-in AI technology to select optimal wash settings, alongside its TurboWash3D Technology for a powerful yet gentle clean in just 29 minutes. While both models offer smart technology, the specific features cater to different washing styles.

Cleaning Performance

The LG WM4000HBA is designed with an Allergiene Cycle that effectively removes 95% of pet dander and dust, making it a great option for pet owners or allergy sufferers. This feature highlights its focus on cleanliness and care for sensitive users. Meanwhile, the LG WT8400CW emphasizes its TurboWash3D Technology, which ensures a thorough clean in a shorter time frame, appealing to those who prioritize efficiency. Both washers are equipped to deliver excellent cleaning performance, but their approaches differ based on user needs.

User Experience and Convenience

User experience is a key consideration for both washers. The LG WM4000HBA’s front-load design may require bending down, which some users find less convenient compared to the top-load design of the LG WT8400CW. The WT8400CW's EasyUnload feature enhances usability by allowing for easier access to the drum. Additionally, both washers feature electronic controls with LED displays, simplifying the washing process. Ultimately, the choice may come down to personal preference regarding the ease of loading and unloading.

Price Comparison

The LG WM4000HBA is priced at $899.00, whereas the LG WT8400CW is available for $849.00. This price difference of $50 makes the WT8400CW approximately 6% less expensive than the WM4000HBA. For budget-conscious consumers, this could be a significant factor, especially when considering the features that both models offer at their respective price points. While the price is an important consideration, it should be weighed against the specific features and capacities that each model provides.

Customer Satisfaction and Popularity

Customer satisfaction can often be gauged through sales rank and user reviews. The LG WM4000HBA, with a sales rank of 1673, indicates a solid level of popularity among consumers. The LG WT8400CW follows closely with a rank of 1817, suggesting it is also well-received. Both washers have garnered attention for their innovative features and performance, but the WM4000HBA's slightly higher rank may suggest a slight edge in customer preference or satisfaction.

Which should you buy?

Choosing between the LG WM4000HBA and the LG WT8400CW ultimately depends on your laundry needs and preferences. If you value a larger capacity and a more ergonomic design, the WT8400CW may be the better option at $849.00. However, if you prefer advanced cleaning features such as the Allergiene Cycle and a more modern front-load design, the WM4000HBA at $899.00 could be worth the investment. Both washers bring excellent technology and performance to the table, so consider what features are most important to you before making a decision.