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Key Features

  • 4.5 cu. ft. Large Capacity
  • SmartThinQ® Technology
  • Steam Technology
  • LG SideKick™ Compatible
  • 6Motion™ Technology
  • TubClean Cycle

available colors:

Graphite Steel
Suggested Price


Suggested Price
Promotion Price*


Promotion Price*

Get it All Done In Less Time

Ultra-large capacity (4.5 cu.ft.) means you have the room to do more laundry in fewer loads.


Think you can’t do laundry on the go? Think Again.

Expand the limits of your laundry room with the LG SmartThinQ® app. Select a cycle, start or stop the wash and get notifications about when your laundry will be done, all from your smartphone. It even works with the Google Assistant and Amazon Alexa, so you can manage your laundry with simple voice commands.


Deep Clean With Steam

Our steam technology gently but powerfully penetrates fabrics to virtually eliminate dirt, odors and wrinkles.


For Small Loads that Can’t Wait

Whether it’s your kids’ favorite shirt, yoga pants or a school uniform, washing a full load seems wasteful for just a few pieces. Now you can wash small loads that just can’t wait with the LG SideKick™ Pedestal Washer or wash two loads at once to save time.



Learn more about LG SideKick™


6 Customer Care Cycles

LG SideKick™ offers six distinct wash cycles, including a special setting for active wear.


Simultaneous or Independent Operation

LG SideKick™ saves time by washing two loads at once or get it all done by washing a small load separately.    

Simultaneous_ Independent_d2

Raises Your Washer

LG SideKick™ allows you to easily access laundry for more comfortable loading and unloading in the main washer. Compatible with all new LG Front Load Washers.


A Smarter Way to Wash

6Motion™ Technology uses up to 6 different wash motions to provide a smart cleaning experience that is gentle on clothes and maximizes washing performance.


Easily Maintain &
Keep Fresh

TubClean Cycle is designed for easy, periodic maintenance to keep your washer fresh. The cycle uses water jets and intense heat (up to 149 degrees) to sterilize the tub and help keep your high-performing washer in tip-top condition.

Washer/dryer stacked on a black background with an outline drawing of a kithcen

Fits in More Places

Get extra capacity without taking up extra space, thanks to a 30” depth that easily fits into smaller spaces or second floor closets.


Warranty / Certifications




Follow the tips below to make sure your LG product will fit in the space intended.


What People Are Saying

Rated 5 out of 5 by from Serious upgrade We replaced our prior LG washer which gave us 12 years of service and we put it through it’s paces. The new unit is a serious upgrade and looking forward to the next 12+ years.
Date published: 2019-04-20
Rated 5 out of 5 by from Quiet and clothes are clean and spin cycle amazing Had an LG before. Looked at other options but so glad I got another LG!!
Date published: 2019-04-18
Rated 4 out of 5 by from Very good washer Bought this about a month ago, and use it 3-4 times a week. Very good noise levels, even at highest spin. Cleaning excellent as expected. I like the idea of the downloadable cycles, so much so that I wish I could replace some built-in ones that I'll never use with other variations like small load/jeans/etc.
Date published: 2019-04-18
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Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

We just purchased this model and was wondering why the wet detergent fill compartment must be emptied before doing another load. Its annoying to take the tray to the sink each time to empty the water.

Asked by: blingner
Why don't you just dump the water into the machine and rock on?
Answered by: Captain Obvious JR
Date published: 2019-02-18

What is the alergin setting used for on wm3700hva? What is the sanitary setting used for on the wm3700hva

Asked by: Tacky d an k
The Allergiene™ cycle on the ENERGY STAR® Qualified LG 4.5 cu. ft. Ultra Large Smart wi-fi Enabled Front Load Washer, Model # WM3700HVA when selected automatically incorporates steam into the cycle. The Allergiene™ cycle helps reduce dust mite populations and helps to significantly reduce allergens in bedding and clothing. Due to the higher energy and temperatures used, the Allergiene™ cycle is not recommended for wool, silk, leather, or any other delicate or temperature sensitive items. It can be used to wash cloths that accumulate dust - like pillow covers, and bed sheets - or items that deserve special care - like baby clothes and undergarments. The Sanitary cycle uses extreme temperature changes - extra hot during the wash, cold during the rinse - to clean the dirtiest clothing items in the house. It reduces 99.9% of bacteria on laundry through the high temperatures. The default wash/rinse temperature is Extra Hot/Cold with the wash temperature being approximately 147˚F. The approximate cycle time is 176 minutes, which will vary based on the soil level, load size, and selected options...^IFV
Answered by: LGJoel
Date published: 2019-02-11

Why is Water Plus only listed in the French section of the User Manual? If this is only available in certain countries, then the website should reflect this instead of misleading customers. There doesn't appear to be a button for it either.

Asked by: jamesxa
Hello and thank you for letting us know. This model does not have an option to add water, however, the Add Garment feature automatically adds water. Just make your selections and once the unit starts, press add garment and then resume and the unit will add more water. Also, if you use the Bedding/Bulky cycle, it uses the most water of any cycle. ^AC
Answered by: Amber C
Date published: 2019-02-16

Does LG have any front-loading washers and dryers with a lighted drum?

Asked by: GininTN
Please visit our site at and use the 'Compare Now' checkbox to select the LG Front Loader that you are interested in to compare our lineup of Front Loading Washers. In the specifications for each washer under "Wash Programs," if the washer has a drum light, it will be listed under 'Options"...^IFV
Answered by: LGJoel
Date published: 2019-02-04

Have the WM3700HVA. Does this require special water hoses? Braided steel were installed and I am have 1E error code problems. Called LG and they said that rubber hoses were the only compatible ones for this washer.

Asked by: BobMike
Hello, the unit was designed to be used with LG hoses. Hot water hose part # 5215FD3715U and Cold water hose part # 5215FD3715V. ^AC
Answered by: Amber C
Date published: 2019-02-04

What is the TrueBalance™ Anti-Vibration System and what does it mean?

Asked by: sthavera
The TrueBalance™ Anti-Vibration System featured on the ENERGY STAR® Qualified LG 4.5 cu. ft. Ultra Large Smart wi-fi Enabled Front Load Washer, MOdel # WM3700HVA is as the name implies. IT is a system that is designed to reduce washer noise and vibration for a smooth, quiet performance on any floor in your home. It is enabled by our Direct Drive motor technology which transfers power from the motor to the drum rather than through belts and pulleys which significantly reduces washer noise and vibration. Additionally, TrueBalance™ technology automatically counters uneven loads and adjusts spin speeds to further reduce vibration...^IFV
Answered by: LGJoel
Date published: 2019-02-04

Does the Bedding cycle match the Bulky/Large option on the WM3770? Or, has the bulky/large been omitted on the WM3700?

Asked by: Mikesgirl
The Bedding cycle on the ENERGY STAR® Qualified LG 4.5 cu. ft. Ultra Large Smart wi-fi Enabled Front Load Washer, Model # WM3700HVA should be used for washing clothing items such as mattress covers, outdoor clothes, plastic mats, etc., that are waterproof or water resistant and should be used with low spin for such items. It is also suitable for washing king or queen-sized comforters. Similarly, the Bulky/Large cycle in the WM3770H*A is designed for washing blankets or large bulky items like comforters and it also has a low spin option so it can be used like the Bedding cycle on the WM3700H*A...^IFV
Answered by: LGJoel
Date published: 2019-01-28

When I go to see compatible SideKicks and view the PDF of compatible models I don't see the WM3700HWA. Even though I went to that sidekick directly from our model washer. Is the WM3700HWA compatible with the WD100?

Asked by: Derived42
Hello, the WM3700HWA is fully compatible with the WD100CW. ^AC
Answered by: Amber C
Date published: 2019-01-21
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