LG WM3400CW / WM6700HBA Front-Load Washer (budget tier) Review

What is the LG WM3400CW / WM6700HBA Front-Load Washer?

The LG WM3400CW and WM6700HBA represent two distinct tiers within LG’s front-load washer lineup, catering to different household needs and space constraints. The WM3400CW is LG’s entry-level, budget-friendly model, celebrated for its reliability, shallow depth, and solid core performance without premium extras. It is primarily aimed at small households, apartment dwellers, or those with tight laundry closets who need a dependable machine that doesn’t compromise on essential cleaning. The WM6700HBA, conversely, is LG’s high-capacity, feature-rich flagship for the budget-to-mid tier, designed specifically for large families. It boasts a massive 5.0 cubic-foot drum, an automatic detergent dispenser (ezDispense), and advanced TurboWash 360° technology for blazingly fast cycles. The central question for a buyer is whether to prioritize the compact, cost-effective simplicity of the WM3400CW or the expansive capacity and time-saving automation of the WM6700HBA.

Overview

The LG WM3400CW sits as the most popular and affordable front-load washer in LG’s current range, often described as a "basic machine" that delivers the same core reliability and spin performance as LG’s higher-end models without the extra cost. It is one of the shallowest full-size front-load washers available at just 30.25 inches deep, making it a critical choice for stacking in closets or fitting into tight laundry rooms where depth is a limiting factor. Despite its budget positioning, it maintains LG’s reputation for reliability, which surveys confirm as the most reliable brand for front-load washers.

The WM6700HBA, on the other hand, is the top-tier model for families needing maximum capacity, featuring a 5.0 cubic-foot drum that is significantly larger than the WM3400CW’s 4.5 cubic feet. This extra half-cubic foot is specifically beneficial for bulkier loads like bedding and large family laundry, though it comes with a trade-off in depth, increasing to just over 33 inches. The WM6700HBA is positioned as LG’s first model with an 18-load automatic detergent dispenser (ezDispense), which calculates detergent usage and releases it at the optimal cycle time, a feature absent in the budget model. Both models share LG’s TurboWash technology (though the WM3400CW lacks the 360° upgrade) and 1,300 RPM spin speed, ensuring clothes come out drier and reducing drying time. The WM6700HBA also adds premium features like Steam, Allergiene cycles, and Wi-Fi notifications, elevating it from a basic utility to a smart, family-centric appliance.

What Are the Main Strengths?

Compact Design and Reliability (WM3400CW)

The WM3400CW’s standout strength is its shallow depth of 30.25 inches, which is a "world of difference" for users stacking in closets or working with limited space. This compact footprint makes it one of the most versatile options for small apartments or older homes where laundry rooms are tight. Despite being a "basic machine," it delivers the same core reliability and spin performance as LG’s higher-end machines, with a 1,300 RPM spin speed that is faster than many competitors, ensuring clothes are drier and reducing fabric wear. Users consistently praise its quiet operation and efficient cleaning, noting that clothes come out fresh and clean.

Massive Capacity and Time-Saving Speed (WM6700HBA)

The WM6700HBA excels with its massive 5.0 cubic-foot drum, which is "more than enough space for the laundry needs of a big family". Its TurboWash 360° system enables blazingly fast cycles, with the Normal cycle finishing in just 30 minutes and Quick Wash in 15 minutes, compared to the hour or more typical of other models. This speed is a major advantage for busy households. The automatic ezDispense dispenser is another critical strength, holding up to 18 washes of detergent and fabric softener, which prevents overuse and simplifies the laundry process for families. It also offers specialized cycles like Sanitary, Kids Wear, and Allergiene, which remove over 95% of common allergens, making it ideal for allergy sufferers.

Energy Efficiency and Smart Features

Both models are highly energy-efficient, with the WM6700HBA earning a "Most Efficient" rating due to its low 105 kWh/year usage and Integrated Water Factor of 3.0 gal/cu ft. The WM6700HBA also includes Wi-Fi connectivity, allowing users to start, stop, and monitor laundry from a smartphone, a feature that adds convenience for tech-savvy users. The 6Motion Technology in the WM3400CW uses six different wash motions for a thorough clean, ensuring gentle tumbling that reduces wear and tear while maintaining performance.

What Are the Key Trade-offs?

Limited Features on the Budget Model (WM3400CW)

The primary trade-off of the WM3400CW is its lack of advanced features. It does not include steam cycles, allergen cycles, or automatic detergent dispensing, which are present in the WM6700HBA and other higher-end LG models. The AI Wash cycle is notably underwhelming, and the machine lacks LG’s patented AI wash technology, which could be a drawback for users seeking smarter cleaning optimization. Additionally, the WM3400CW has longer cycle times compared to the TurboWash 360° model, which may be inconvenient for those with urgent laundry needs.

Depth and Wear on the Large Model (WM6700HBA)

The WM6700HBA’s increased capacity comes with a significant trade-off in depth: it is just over 33 inches deep, which is 2.75 inches deeper than the WM3400CW. This extra depth can create installation problems, especially in tight spaces or when stacking in closets, making it crucial to measure the laundry area carefully before purchasing. Furthermore, reviewers note that the WM6700HBA causes more wear and tear damage to fabrics than average, which could be a concern for households with delicate clothing. The AI Wash cycle on this model is also described as underwhelming, suggesting that not all advanced features perform as expected.

Door Reversibility and Service Limitations

A universal trade-off for all LG front-load washers, including both the WM3400CW and WM6700HBA, is that the washer door is not reversible. This could be a problem depending on the layout of the laundry room, as users cannot adjust the door swing to suit their space. Additionally, while LG is the most reliable brand, some models in the lineup (like the WM3400CW) lack the advanced service options found in competitors like Samsung, which may affect long-term maintenance convenience for some users.

Specifications

Who Should Buy It?

The LG WM3400CW is the ideal choice for small households, apartment dwellers, or anyone with a tight laundry closet who needs a reliable, budget-friendly machine. Its shallow 30.25-inch depth is a critical advantage for stacking or fitting into confined spaces, and its core reliability ensures it won’t fail despite lacking premium features. If you wash mostly standard loads and don’t need steam, allergen removal, or an automatic detergent dispenser, this is the most cost-effective and space-efficient option.

The LG WM6700HBA is the best fit for large families with bulky laundry needs (bedding, towels, multiple kids’ clothes) who value speed and convenience. Its 5.0 cu. ft. capacity and TurboWash 360° system allow for fast, large-load cleaning, while the ezDispense automatic dispenser simplifies the process and prevents detergent overuse. It is also perfect for allergy sufferers due to its Allergiene cycle, which removes over 95% of common allergens.

Who should NOT buy it?

• Do not buy the WM3400CW if you need steam cleaning, allergen removal, or an automatic detergent dispenser. If these features are essential, the WM6700HBA or a higher-end model like the LG WM4000HWA is a better choice.
• Do not buy the WM6700HBA if your laundry space is shallow or you plan to stack it in a closet. Its 33+ inch depth may not fit, and the WM3400CW’s compact design is the safer alternative.
• Consider the GE GFW655SSVWW if you are concerned about mold prevention. LG washers lack the Microban surfaces and UltraFresh vent system with OdorBlock that GE offers, which are critical for preventing mold in humid environments.

Sources

• LG WM6700HBA front-load washing machine review
• LG Front Load Washer Reviews [Features & Performance]
• The Best Front-Load Washers for 2026 - Yale Appliance Blog
• LG Washer Reviews You Should Read Before Buying
• Which Front-Load Washer Actually Saves You Money in 2025?
• LG's 5.4 CU FT High Efficiency Front Load Washer Review - YouTube
• Customer reviews for LG WM6700HBA 5.0 Cu. Ft. Black ... - Walmart
• LG 5.0 cu. ft. Stackable Smart Front Load Washer in Black Steel with ...
• Is LG WM3400CW a good washing machine? : r/Appliances - Reddit
• 16 Best Washing Machines of 2026, Lab-Tested and Reviewed