Juki MO644D Portable Serger [In-Depth] Review (Price, Comparison, & Guide)

Juki MO644D Portable Serger Review
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Juki MO644D Portable Serger Review

Juki MO644D portable serger is one of the reliable sewing machines available in the market. It gives a seamless stitching experience because it is jam-packed with features.

This Juki serger comes with additional accessories at a very reasonable price. User can find it easy to design lightweight dresses by using its multiple stitch options.

If you are not looking for a heavy-duty sewing machine and need something to work on regularly then Juki Mo644D is the best choice.

Before we dive into an in-depth review of this Juki portable serger, let me tell you that it comes with a powerful knife system with a dedicated drive mechanism which enables a user to work on lightweight to medium fabrics.

Quick Specifications

  • Threads: 2-3-4
  • Stitching Speed: Up to 1,500 stitches per minute
  • Color-Coded: YES
  • Lightweight: YES
  • Portable: YES
  • Dimension: 10.6 x 13.4 x 11.6 inches

What is the best Juki Portable Serger?

Juki MO644D is the ultimate serger for beginners and professionals who works on sewing project on a daily basis. It is easy to learn sewing machine for any entry-level or professionals.

During our on-hand review, We have done some experiments on Juki MO644D serger. We used this sewing machine on denim, wool, and linen fabric. One of the beginners in our team even tried it to sew decorated edges of skirts and joined laces and found it easy to use sewing machine.

Juki MO644D is very reliable and high performance 2/3/4 thread serger that delivers high-quality finish to any sewing pattern you stitch.

Juki MO644D Review – Serger Features

Juki MO644D Portable Serger is a jam-packed sewing machine perfect for stitching light to medium weight fabrics.

Overall Look of the Sewing Machine

Juki MO644D is compact, sturdy, white color portable serger sewing machine. It is perfect for professionals and novice users. The front of the machine has four color-coded tension dials that you can use for threading this serger.

A beginner might not be familiar with the threading process which is why you will be able to see clearly illustrated threading process. on the decal in the looper door.

Stitch Options

This Juki portable serger comes with a 2/3/4 Thread serger with an automatic rolled hem. Mo644D provides easy to use stitch options such as :

  • 3-Thread Flatlock
  • 3-Thread Overlock
  • 4-Thread Overlock
  • 3-Thread Narrow Overlock
  • 2-Thread Overcast
  • 3-Thread Rolled Hem
  • 2-Thread Rolled Hem

Read: 10 Best Cover Stitch Machine Reviews

Apart from these excellent threading systems you also get the option of:

  • Blind stitching
  • Adding elastic
  • Cording
  • Beading
  • Piping
  • Curved pearl foot

Color-Coded Threading

Juki MO644D is equipped with a color-coded threading system with a breakaway looper adjustment which provides the freedom to operate differential feed dial so that you can adjust the stitch length at any time during the stitching process.

Thread paths are clearly marked across the dials so that it is easy to thread MO644D portable serger without leaving any doubt for the confusion.

Rolled Hemming

If you are working on a skirt, jeans, shirt, or any professional dress then you might want to have the ability to roll hem the fabric. It is widely used for making casual attire and for giving a professional finish to your sewing job.

Seam Guide

Professional seaming is an essential sewing art that you must possess for decorating fabrics to sew beautiful apparels. Thanks to the built-in seam guide where the gauge is ergonomically located on the guard cover allow user for accurate seam allowances.

Top Performance with Adjustable Dial

While working on a wide array of projects, it is important to have the freedom to change differential feed, thread tension, and fabric stitch width.

This Juki portable serger comes with an easy to rotate the dial in the front of the machine which can be used to change the fabric width without removing the threadings.

When the sewing machine is operating you can simply rotate the dial to make fabric width adjustment for perfect seams. This will give your project professional finish without any glitches.

Multi-Function Presser Foot

Thanks to the built-in multi-function presser foot of Juki MO644D you can easily use it for adding sequins, elastics, tape, and other clustering fabrics and materials in your sewing project.

Technically if you stitch regularly or if you are a professional designer then this pressure feet enables you to use it for cording and gathering of fabrics.

Additional Pressure Foot Compatible with Juki Portable Serger MO644D Model:

  • Blind Stitch Presser Foot
  • Universal Blind Stitch Presser Foot
  • Cording Presser Foot
  • Beading Presser Foot
  • Elasticator Presser Foot
  • Piping Presser Foot
  • Curved Beading Presser Foot
  • Gathering Presser Foot

Powerful Knife System

The knife technology will automatically cut down fabric down the road while you sew your way up and make some good stitching pattern and roll hems.

The dedicated drive mechanism attached to the knife system helps cut any type of fabric coming out of the serger body. You can collect these waste fabric to make patches or cloth stickers.

In this Juki portable serger, the knife system stays away during the threading process to avoid any unwanted injuries.

Stitch Speed and Its Control

With 1,500 stitches per minute, Juki MO644D is one of the fastest serger sewing machine available in the market. Not even Brother’s 1034d professional serger is able to provide such high stitching speed.

Obviously, you are not going to need the same speed for every project, which is why you can but a 2 snap-on feet speed controller. It let the user control the stitch speed.

To manipulate speed, you can simply apply more pressure on the foot controller to get the full speed and reduce the pressure for lower stitching speed.


Juki has made sure to help you achieve a perfect serging experience with below accessories:

  • 4 Thread nets
  • Versatile presser foot
  • Tweezer
  • 4 Spool caps
  • Needle pack
  • Thread looper
  • Light bulb
  • Lint brush
  • Oil dispenser
  • Vinyl cover
  • Screwdrivers
  • Power cord
  • Foot control
  • Instruction manual
  • Accessories bag

Juki MO644d Price

Like other professional machines, you will not have to spend lots of money behind it. Even though it is packed with accessories and advanced sewing features, Juki MO644D comes at an affordable price. If you buy it online then you can get a huge discount as compared to the conventional supermarket stores.

Juki MO644D Manual, Support, and Warranty

Juki brand is one of the most popular sewing machine brands in the world along with Singer, Brother, and Babylock. When you buy the sewing machine you will get a user manual where you can find the customer support number.

This portable Juki serger has a Limited 5 years warranty on the machine and 60 days warranty on its accessories.

Our On-Hand Review

Juki portable serger MO644D never skipped any stitches during our review and also maintained perfect thread tension though out the 2 hours of stitching sessions.

Multipressure foot was really helpful during installing elastic in the skirt and never jammed during the entire stitching project.

In spite of being compact in size, it comes with a vast number of stitch options. Though people claim that it should be used for light-medium fabrics, we found it amazing while roll hemming denim jeans.

How to Thread a Juki MO644D Portable Serger Sewing Machine

Here is a video tutorial which correctly represents the process of threading Juki MO644D.

Follow the step-by-step instructions in the video, and you will be good to go. Just keep an eye on the threading path and you will be fine.

Juki MO644D vs Brother 1034D Comparison

Both these sergers are a very popular sewing machine, so check out this comparison table to understand the basics of this machine.

Machine TypeSergerSerger
Stitch Threads2/3/4 Threads3/4 Threads
Overlock Seam Width4.0 - 6.0mm from left needle 5.0 - 7.0mm from left needle
Stitch Length2.5 - 4.0mm (for overlock stitch)2.0 - 4.0 mm (for overlock stitch)
Color Coded ThreadingYesYes
Stitching Speed15001300
KnifeYes, Dedicated Drive MechanismYes, Retractable Knife
CoverDust CoverDust Cover
Buil-in Rolled HemYesYes
Company Warranty5 Years25 Years

Conclusion – Best Household Portable Serger

Juki MO644D is an excellent household use serger. It comes at an affordable price packed with advance serging features. Even though MO644D does not have a free arm, it can be really helpful in your day to day sewing projects.

Multi-threading and differential feed ratio allow sewers to create fashionable designs and fives you the ability to work on various fabrics.

If your project includes sewing jobs such as rolled hems, installing elastic, and designing lightweight dresses then Juki MO644D will work as a one-stop sewing solution for your projects.

Juki MO644D Portable Serger
340 Reviews
Juki MO644D Portable Serger
  • 2/3/4 Thread serger with automatic rolled hem
  • Color coded threading breakaway looper adjustment for stitch length and differential feed
  • Powerful knife system with dedicated drive mechanism. Sewing Speed - Max. 1500 spm


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