LG WM3555HVA 2.4 Cu. Ft. Smart Wi‑Fi Enabled vs LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart
Updated July 2026 — LG WM3555HVA 2.4 Cu. Ft. Smart Wi‑Fi Enabled wins on price, LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart wins on sales rank and height.
The LG WM3555HVA is ideal for those needing a compact all-in-one solution, while the LG WT8400CW offers a larger capacity at a lower price. Choose based on your space and laundry needs.
Why LG WM3555HVA 2.4 Cu. Ft. Smart Wi‑Fi Enabled is better
Drying Capability
WM3555HVA combines washing and drying in one unit.
Compact Design
WM3555HVA fits in smaller spaces.
Allergen Removal
WM3555HVA has a steam cycle for allergy sufferers.
Why LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart is better
Price
WT8400CW is significantly cheaper.
Capacity
WT8400CW has a larger capacity of 5.5 cu. ft.
Ergonomic Design
WT8400CW features an EasyUnload design.
Overall score
Specifications
| Spec | LG WM3555HVA 2.4 Cu. Ft. Smart Wi‑Fi Enabled | LG WT8400CW 5.5 Cu. Ft. White Mega Capacity Smart |
|---|---|---|
| Wi-Fi Enabled | Yes | Yes |
| AI Technology | Yes | Yes |
| Steam Cycle | Yes | No |
| TurboWash3D | No | Yes |
| Energy Efficient | Yes | Not specified |
Dimension comparison
Overview of the LG WM3555HVA and LG WT8400CW
The LG WM3555HVA is a compact all-in-one washer and dryer combo, while the LG WT8400CW is a mega capacity top load washer. With prices of $1,899.00 and $849.00 respectively, the WT8400CW is about 55% cheaper than the WM3555HVA. These two models cater to different needs, so understanding their key features is essential for making an informed choice.
Design and Size Considerations
The design philosophies of the LG WM3555HVA and LG WT8400CW reflect their intended use. The WM3555HVA has a compact size, making it ideal for smaller spaces, fitting comfortably in closets or tight laundry areas. In contrast, the WT8400CW boasts a larger capacity of 5.5 cu. ft., allowing users to wash more items in a single load. This difference in size can significantly impact the choice for potential buyers, particularly those with limited space versus those needing to wash larger loads efficiently.
Washing Technology
When it comes to washing technology, both models feature advanced AI capabilities. The WM3555HVA employs built-in intelligence to detect fabric texture and load size, automatically selecting the optimal wash motions and settings. The WT8400CW also incorporates AI technology, which selects the best wash settings, ensuring effective cleaning with minimal user input. While both machines offer smart features, the WM3555HVA’s sensor-driven approach may appeal more to users who value precision in fabric care.
Drying Capabilities
One of the standout features of the LG WM3555HVA is its all-in-one capability, which combines washing and drying in a single unit. This is particularly beneficial for those with limited space, as it eliminates the need for a separate dryer. The WT8400CW, however, does not include drying functionality, focusing solely on washing. For users who require both washing and drying in one appliance, the WM3555HVA is the clear winner in this category.
Additional Features and Convenience
The LG WM3555HVA is equipped with a steam-powered Allergiene cycle that effectively removes over 95% of dust, pet dander, and pollen, making it a great option for allergy sufferers. It also features Wi-Fi connectivity, allowing users to start laundry remotely through the ThinQ app. Conversely, the WT8400CW offers an ergonomic EasyUnload design and TurboWash3D technology, delivering a powerful yet gentle clean in just 29 minutes. Both models provide convenience, but their features cater to different priorities.
Energy Efficiency
Energy efficiency is a key consideration for many buyers. The LG WM3555HVA is designed as an energy-efficient laundry solution, promoting lower utility bills and environmental responsibility. Although the WT8400CW does not explicitly state its energy efficiency, its larger capacity means fewer loads may be required, potentially leading to energy savings in the long run. Buyers concerned about energy consumption should weigh the compact efficiency of the WM3555HVA against the larger capacity of the WT8400CW.
Price Comparison
At $1,899.00, the LG WM3555HVA is significantly more expensive than the WT8400CW, which retails for $849.00. This price difference of about $1,050 makes the WT8400CW a more budget-friendly option for those who primarily need a washing machine. However, for users who require the combined washing and drying features of the WM3555HVA, the investment may be justified, especially considering its compact design and advanced features.
Sales Rank and Market Position
In terms of market position, the LG WM3555HVA holds a sales rank of 1,418, while the WT8400CW has a sales rank of 1,817. While both models are popular choices, the WM3555HVA's higher rank indicates a stronger preference among consumers, possibly reflecting its unique all-in-one functionality and space-saving design.
Which should you buy?
Choosing between the LG WM3555HVA and the LG WT8400CW ultimately depends on your specific laundry needs. If you have limited space and require a washer that can also dry clothes, the WM3555HVA is worth the investment at $1,899.00. However, if you prioritize a larger capacity and a more budget-friendly option, the WT8400CW at $849.00 provides excellent washing capabilities without the added drying feature. Consider your space, budget, and laundry habits carefully to make the best choice for your home.

