Singer 9100 and Singer 7640 are two computerized sewing machines currently available in a similar price range. In the following article, we will help you choose between Singer 9100 vs 7640 by showing you the differences between the two models. In general, Singer 9100 is more recommended than Singer 7640 because of the benefits that it offers.

Continue reading below to find further about:
– The size and weight of each sewing machines
– The features and capabilities of Singer 9100 and Singer 7640
– The accessories that are included with each model
– The performance comparison of Singer 9100 vs 7640
– Which sewing machine that is generally more recommended

Singer 9100: Dimensions and Build Quality
Singer 9100 will immediately impress you with its heavy-duty metal frame. It has a sturdy feel due to the balanced weight. It is neither too light nor too heavy at 18.95 lbs. The metal frame helps to keep the sewing machine stable in place during its operation. See also: Brother ST371HD vs Singer 4423.

Singer 9100 has a standard white finish, which looks clean and professional. It can easily fit into any sewing room. There is a backlit LCD screen which is just bright enough to allow easy reading in various lighting situations without distracting you from the work at hand. The buttons and switches feel fairly sturdy.

This sewing machine is actually quite compact at 18.3 inches x 14.3 inches x 10.8 inches. It has a small working area which should be sufficient for small projects. The compact design should make it easy to store and to bring along. However, it indeed comes with an optional extension table which will allow you to take care of large projects easily.

Singer 9100: Features
If we compare the features of Singer 9100 vs 7640, we can easily notice several differences. Most people will find Singer 9100 to be more valuable. The feature set is simply better.

Singer 9100 comes with 404 built-in stitches. This is truly awesome. There are basic stitches and others for decorative and more advanced purposes. It also has 9 one-step buttonholes which are very practical to use. You can easily find the right buttonhole size that perfectly suits the button that you want to use. In addition, it comes with 2 lettering fonts for making words or monograms.

The flexibility doesn’t end there. Singer 9100 has several advanced features. First, it has a temporary memory capability which will allow you to combine multiple stitch patterns into a unique sequence. Second, it has the mirror imaging capability for making two stitch patterns that mirror each other. Third, there is the stitch elongation capability for certain stitches, which will allow you to increase the stitch length while still maintaining the stitch density. With Singer 9100, you can unlock unlimited creativity.

Singer 9100 is very easy to use. It has a top drop in bobbin system with a transparent cover, so you can always monitor the thread supply. There is an automatic needle threader to help you save some time and avoid eye strain. Singer 9100 has a drop feed mechanism and a free arm for free-motion sewing. The presser feet can be attached and detached easily, and the extra-high foot lifter will allow you to accommodate thick fabrics with ease.

Singer 9100 also supports twin-needle sewing. You can adjust the needle position and program the needle stop position to be up or down. You can also adjust the stitch width and stitch length. Meanwhile, the thread tension is adjusted automatically to suit the selected stitch pattern. To maintain a consistent sewing performance, there is a mechanical speed control mechanism.

Singer 9100: Included Accessories
Singer 9100 comes with ten sewing feet for different purposes as well as other accessories. They include:
– General purpose foot
– Button sewing foot
– Buttonhole foot
– Zipper foot
– Even feed/walking foot
– Sew easy foot
– Blind hem foot
– Satin stitch foot
– Open toe foot
– Cording foot
– Edge/quilting guide
– Seam ripper/lint brush
– A pack of needles
– Bobbins
– Spool caps, spool pin felt, and auxiliary spool pin
– Screwdriver
– Extension table
– Soft dust cover
– Stitch card holder and stitch pattern chart

Singer 9100, just like most other models from the company, is backed by a great 25-year limited warranty. The warranty covers the chassis. However, keep in mind that some of the smaller parts are only warrantied for one year after the purchase date. You should keep your purchase receipt because it will be required when making a warranty claim.

Singer 9100: Performance
If we compare the performance of Singer 9100 vs 7640, the difference is not much. But Singer 9100 is still a little bit better. With a maximum speed of 750 stitches per minute, Singer 9100 is not the fastest sewing machine in the market, but it can offer good power and control.

One of the greatest things about Singer 9100 is that it can work with a wide range of materials. It is able to sew light fabrics effortlessly. You just need to be more careful when sewing fine and thin fabrics, but you won’t find much of a problem. The sewing machine is also able to sew through heavy-duty materials such as denim and leather, as long as you are using the right needles.

You don’t need to worry about using this sewing machine for bigger and heavier projects. The customizable stitches are very useful for making decorative stitches and other specific needs. The stitch quality is good and consistent. Controlling the sewing speed at a certain level enables you to enhance the consistency, but make sure not to run it too slowly.

Singer 7640: Dimensions and Build Quality
Singer 7640 also comes with a metallic frame, which helps to enhance the stability of the sewing machine. It will remain in place without vibrating much. It has a decent weight of about 17.86 lbs.

However, the overall size of Singer 7640 is slightly larger at 20.9 inches 14 inches x 11.4 inches. As the effect, it is not as portable. It will also require more space on your desk. There is a snap-on extension table included which will expand the working area to 10 inches x 15.5 inches, thereby allowing you to handle larger projects.

Singer 7640 has a small display screen, but it is not backlit. As the effect, it will be difficult to read in a dim environment. In addition, it lacks dial buttons for accessing the stitches quickly. So, it is not very convenient to use.

Singer 7640: Features
Many of the features of Singer 9100 vs 7640 seem to be similar. However, there are a few things that Singer 7640 lacks. It also comes with fewer stitch patterns.

Singer 7640 comes with 200 built-in stitches and 8 one-step buttonholes. But it only has one font for making words and monogramming. This model also has temporary memory for combining stitch patterns, but the number of stitches that you can combine is more limited.

Singer 7640 also has a top drop in bobbin and an automatic needle threader. It has a drop feed and a free arm. You can adjust the stitch length and stitch width, and there is also a mechanical speed control mechanism. But there is no mention about the thread tension adjustment or an extra-high pressure foot lifter. Nevertheless, this sewing machine does support twin-needle sewing.

Singer 7640: Included Accessories
Singer 7640 also comes with ten sewing feet. There are also several other accessories, including the bobbins and spool caps. It comes with the following items:
– General purpose foot
– Button sewing foot
– Buttonhole foot
– Zipper foot
– Even feed/walking foot
– Sew easy foot
– Blind hem foot
– Satin stitch foot
– Open toe foot
– Cording foot
– Edge/quilting guide
– Seam ripper/lint brush
– A pack of needles
– Bobbins
– Spool caps, spool pin felt, and auxiliary spool pin
– Screwdriver
– Extension table
– Soft dust cover
– Stitch card holder and stitch pattern chart

As you can see, all of the included items are similar to the ones that come with Singer 9100. This model is also backed by a 25-year limited warranty for the chassis and a 1-year limited warranty for some of the smaller parts. The warranty will cover any defect in the materials and workmanship, but won’t cover damage that is caused from user abuse or improper usage.

Singer 7640: Performance
Singer 7640 also has a maximum sewing speed of 750 stitches per minute. It can make basic stitches on materials that are not too thin or thick with excellent quality. As long as the task is not too difficult, it can make consistent stitches without skipping.

However, without a high pressure foot lifter, this sewing machine won’t be able to take very thick materials, such as multiple layers of denim.

Nevertheless, this sewing machine can handle thin fabrics quite well. It can also take multiple layers of fabrics that are not too difficult to handle, such as light canvas and flannel, and deliver good results. Just remember to use a sharp needle so that the sewing machine won’t make any strain or odd-looking patterns.

Singer 9100 vs 7640

Conclusion
Between these two models, Singer 9100 is definitely more recommended. It comes with better features. Not only it has more stitch patterns, but also it comes with useful things such as the backlit display and the extra-high pressure foot lifter. In addition, the overall performance is better.