Pick the Janome 423S if you want adjustable presser-foot pressure and a one-step buttonhole. Pick the Janome 415 if separate stitch-length and stitch-width sliders, drop feed and a four-step buttonhole cover your sewing and you can verify the exact unit. Both are front-loading, mechanical machines that Janome America files under retired models, so this is a unit-by-unit decision more than a model decision.
This comparison uses Janome’s manuals and model pages, summarized in our own Janome 415 and Janome 423S reviews. We have not sewn on either machine.
The short comparison
| Decision | Janome 415 | Janome 423S |
|---|---|---|
| Stitch length and width | Separate sliders; up to 4 mm length and 5 mm width | Adjustable length and width |
| Buttonhole | Four steps, with the sliding buttonhole foot | Automatic one-step |
| Presser-foot pressure | Not covered in the sources we used | User-adjustable |
| Drop feed | Yes, with a drop-feed control | Check the exact manual and unit |
| Bobbin | Removable front-loading case | Removable front-loading case |
| Built-in stitches | 14 on Janome’s global page; 15 programs on the German page | 24 stitch choices on the UK model page |
| Needle threader | Global page says yes; the manual says specific versions only | Check the exact unit |
| Speed control | Pedal | Pedal; no separate speed slider or needle-position button |
| US status | Retired-machine manual on Janome America | Manual listed under retired models; still documented by Janome UK and Ireland |
Sources: Janome Global 415 , the 415 instruction book , the Janome UK 423S page and the 419S/423S instruction book . Counts differ between regions, so inspect the selector on the machine you are offered.
Four steps or one step
The 415’s four-step buttonhole means turning the selector through each side and bartack in turn. It works, and it can be learned. The 423S makes its buttonhole in one automatic sequence, which saves steps if you sew shirts or garments with many buttonholes. In either case, sew a test buttonhole on your fabric with its interfacing before you cut the hole.
Presser-foot pressure
The 423S’s pressure control is the more significant difference for a buyer who changes fabrics. Janome’s documentation for it describes a user-adjustable pressure setting; use the manual’s starting setting, sew a scrap, and change one variable at a time. Foot pressure is not thread tension, and extra foot lift is a separate loading-access feature. The sources we used for the 415 do not mention this control, so do not assume it has one.
What the 415 keeps in its favor
- Separate sliders for length and width, which let you tune zigzag and straight stitches independently.
- A drop-feed control, for techniques that need you to move the fabric by hand.
- A clear official manual that covers the controls and accessory baseline: a zipper foot, sliding buttonhole foot, hemmer foot, bobbins, needles, seam ripper, screwdriver, oil and hem guide.
The shared catch: both are retired in the US
Janome America lists both manuals under retired machines. That does not make a specific machine unusable. It does mean you should price missing parts, a possible service visit and parts availability into the total, and verify:
- The badge and the electrical rating plate match your supply voltage and frequency. A plug adapter does not convert voltage.
- The foot controller and power lead belong to that unit.
- The removable front-loading bobbin case and at least one bobbin are present.
- The controls move through their ranges, the buttonhole sequence completes, and no cord damage, drop damage or water damage is visible.
Our two reviews walk through these checks in detail. Both reviews also have a “Bobbins and presser feet” section: 415 and 423S .
A current US alternative: the Janome 2212
If neither model passes the checks, the Janome 2212 is a different, US-documented model. It has a four-step buttonhole like the 415, 12 stitches, drop feed and a front-loading bobbin, so it is a closer match to the 415 than to the 423S. It lacks the 423S’s adjustable pressure and one-step buttonhole. The link below is to an exact 2212 listing from a third-party seller that was in stock on October 19, 2026: Janome 2212 Front-Loading Sewing Machine . Confirm the seller, included accessories and power rating before ordering.
Where to buy the 415 or the 423S
We could not confirm a current new listing for either model in Amazon’s catalog, so both links are searches: Search Amazon for Janome 415 and Search Amazon for Janome 423S . Check that each result names the model, shows a readable rating plate, and lists what is included.
Method and limits
This page compares documentation. It does not test stitch quality, feeding, durability or noise, and the sources do not establish the condition of any individual used or imported unit. Where a source was silent (for example, drop feed on the 423S), the table says to check rather than guessing.
Sources
Questions before buying
What is the main difference between the Janome 415 and 423S?
The 423S has a one-step buttonhole and user-adjustable presser-foot pressure. The 415 has a four-step buttonhole and a drop-feed control, with separate length and width sliders.
Are the Janome 415 and 423S still sold in the US?
Janome America lists the manuals for both under retired machines. Janome UK and Ireland still documents the 423S, and Janome’s global site still documents the 415, but neither establishes a current new US offer.
Do they use the same bobbin?
Both use a removable front-loading bobbin case per Janome’s documentation. Confirm the bobbin and case in your exact manual before buying spares.
Which is better for beginners?
The 423S asks for fewer steps on buttonholes and adds pressure adjustment, but both are retired models that must be checked one unit at a time. A buyer who wants a documented current-support path may prefer a model that is still listed by Janome America.