Brother SM3701 vs Singer Heavy Duty 4423
Technical comparison · Mechanical
Singer Heavy Duty 4423 is the only one of the two showing a measurable advantage, starting with maximum stitch width; on the other available specs the data does not separate them. On the category's technical index, Singer Heavy Duty 4423 ranks #3 of 15, Brother SM3701 #9.
| Parameter |
SM3701
Brother
F1 · Entry
|
Heavy Duty 4423
Singer
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Use tier | F1 — Entry | F2 — Intermediate |
| Price | ||
| Price | ~90–200 € | ~90–200 € |
| Universal specs | ||
| Weight | 5.67 kg | — |
| Category specs | ||
| Machine weight | 5.67 kg | — |
| Power supply | 110-120 V | 110-120 V |
| Power consumption | — | 84 W |
| Frame material | — | Metal |
| Stitch selection | Dials | Dials |
| Maximum speed | 800 spm | 1100 spm |
| Built-in stitches | 37 | 23 |
| Buttonhole type | One-step | One-step |
| Buttonhole styles | 1 | — |
| Stitch types | — | Straight stitch, Zigzag stitch, Three-step zigzag, Blind hem stitch, Stretch blind hem stitch, Triple stretch straight stitch, Triple stretch zigzag, Elastic overlock stitch |
| Maximum stitch width | 5 mm | 6 mm |
| Maximum stitch length | 4 mm | — |
| Needle positions | — | 3 |
| Drop feed | — | Yes |
| Needle threader | Automatic | Automatic |
| Adjustable presser foot pressure | — | Yes |
| Free arm | Yes | Yes |
| Included presser feet | 5 | — |
The differences that matter
- Maximum stitch width: Brother SM3701 5 mm vs Singer Heavy Duty 4423 6 mm
- Maximum speed: Brother SM3701 800 spm vs Singer Heavy Duty 4423 1100 spm
Which one to choose
Choose Singer Heavy Duty 4423 if…
you value maximum stitch width and maximum speed.
This comparison points to the two product pages, where you'll find the complete data and the official links.