Product · Singer
Singer Heavy Duty 9120: app control and 7 mm width
Note: This page contains affiliate links. If you buy through them we may earn a commission at no extra cost to you. Learn more
The Singer Smart Heavy Duty 9120 combines the heavy duty idea of a metal frame and strong piercing power with app based control. It is for sewists who tackle denim, canvas and layered fabrics but also want guided help and a large stitch library on their phone or tablet. Its defining trait is that most stitches live in the app rather than on the machine.
- Stitches
- Straight stitch plus 200+ via app
- Max speed
- Not stated
- Frame
- Full metal interior frame
- Thick fabric aids
- Strong piercing power, speed control
In its favour
- Strong piercing power for thick fabrics and layered materials is stated.
- Speed control and a start/stop button help on slow passes over jeans seams.
- Stitch width up to 7 mm and 29 needle positions are listed for topstitching placement.
Good to know
- Only the straight stitch is built in; the other stitches need the app and a mobile device.
- Top speed and presser foot lift are not stated.
Our take
How the app approach works
Built into the machine is a straight stitch. Another 200 or more stitches, covering utility, stretch, decorative, lettering and buttonhole uses, come through the CREATIVATE app, which also recommends stitch settings and presser feet based on fabric. The app adds guided learning and project support.
This means a mobile device becomes part of the setup. If you prefer turning a dial or pressing a button on the machine, that is worth thinking about before buying.
Heavy duty credentials
Singer states strong piercing power for thick fabrics and layered materials, plus a full metal interior frame for stability. Speed control and a start and stop button help on corners, curves and slow passes over a jeans hem. Stitch width reaches 7 mm with up to 29 needle positions, and stitch length goes to 4.5 mm.
The Drop and Sew bobbin system skips the manual bobbin thread pickup, and a needle threader is included. The machine weighs 8.26 kg and measures about 20 by 43 by 30 cm.
In the box and optional extras
Included feet are all purpose, decorative stitch, zipper, blind hem and one step buttonhole, alongside Class 15 bobbins, needles and basic tools. An embroidery attachment is sold separately, supporting an optional hoop up to 170 by 100 mm. Presser foot lift and top speed are not stated.
How it compares for denim
The Singer 6335M Denim keeps its 32 stitches on the machine and is sold specifically for thick layers and denim, so it suits those who want no app at all. The Brother HF27 lists a J foot with levelling button and a non stick foot for leather and PVC, practical aids for jeans and bags. The 9120 is the most flexible of the three, provided you are comfortable with app control.
Verdict
Pick the Singer 9120 if you sew heavy fabrics, like the idea of an app that suggests settings, and may add embroidery later. If you want every stitch on the machine itself, the Singer 6335M Denim is simpler. For hemming jeans with a levelling foot in the box, the Brother HF27 is the practical alternative.
Compared with alternatives in: Best sewing machines for denim
Amazon listing title: SINGER® Smart Heavy Duty 9120™ Computerized Sewing Machine with App Control