Main trade-off
Steelcase Amia
Amia’s upholstered back does not provide Soji’s open mesh construction. Its selected carpet casters also need checking against your floor.
Head-to-head
Steelcase Amia vs Haworth Soji: Amia shortens below 16.25 inches, Soji extends to 18.75
The short answer
Choose Amia if a 16.25-inch seat setting is still too deep or you prefer a padded back. Soji reaches farther at the other end, up to 18.75 inches, and gives you a mesh back with a cushioned seat. Both need manual recline-tension adjustment. The selected Soji has lumbar support and 4D arms, but no forward tilt. Neither measurement range guarantees a comfortable fit.
Before you choose
The reasoning and the trade-offs
The shorter person can lose the benefit of a mesh back
If the front edge presses behind your knees, sitting farther forward can leave the backrest out of reach. In that situation, Soji’s mesh is beside the point. Amia retracts another 0.75 inch, giving a shorter-thighed user a better chance of using the back support while keeping knee clearance. If your comfortable seat depth is already within 16.25 to 18.5 inches, that advantage disappears and Soji’s mesh becomes a reasonable preference. This is a fit screen, not a promise based on your height.
What this is based on
16.25 minus 15.5 equals 0.75 inch. Seat depth crossed with backrest contact and knee clearance. General setup guidance: OSHA.
Main trade-off
Haworth Soji
Soji cannot retract its seat as far. The selected Mist Amazon configuration excludes the optional forward tilt.
Steelcase Amia
- Choose it for
- You need a seat setting of at least 15.5 but below 16.25 inches that Soji cannot reach. Check knee clearance in person.
- You prefer an upholstered back and want to set recline resistance yourself. Check the selected carpet casters against your floor.
- Main trade-off
- Amia’s upholstered back does not provide Soji’s open mesh construction. Its selected carpet casters also need checking against your floor.
Haworth Soji
- Choose it for
- You want a mesh back while keeping a cushioned seat, and its 16.25 to 18.75-inch depth range fits you. The selected Soji has no forward tilt.
- You need a setting beyond Amia’s 18.5-inch maximum. The extra quarter inch is small, so trial fit matters.
- Main trade-off
- Soji cannot retract its seat as far. The selected Mist Amazon configuration excludes the optional forward tilt.
About this comparison
Amia reaches a shorter seat setting. Soji combines a mesh back with a deeper maximum. Compare shared-desk fit, room clearance and the selected Amazon options.
Both are adjustable, cushioned-seat office chairs for a full working day. The useful decision is whether Amia’s shorter seat setting and upholstered back solve a fit problem that Soji’s mesh-back configuration does not.
Winner by situation
Start with what you need it to do
My known comfortable seat depth is 15.75 inches
Amia reaches that setting. Soji starts at 16.25 inches. Confirm actual knee and back contact.
- Steelcase Amia
- Better fit
- Haworth Soji
- Caution
I need a mesh back but want a cushioned seat
The selected Soji has that combination. Regular Amia is upholstered.
- Steelcase Amia
- Caution
- Haworth Soji
- Better fit
I need an 18.75-inch seat setting
Soji reaches it. Amia stops at 18.5 inches.
- Steelcase Amia
- Caution
- Haworth Soji
- Better fit
The chair shares a narrow room with a walkway
Amia has smaller listed body dimensions. Measure movement and access space too.
- Steelcase Amia
- Better fit
- Haworth Soji
- Good
We want recline resistance to reset automatically
Both use manual tension. Shared use still involves adjustment.
- Steelcase Amia
- Caution
- Haworth Soji
- Caution
I want the advertised Soji forward tilt
The selected Soji listing excludes that optional feature. Check another exact configuration.
- Steelcase Amia
- Caution
- Haworth Soji
- Caution
What matters in practice
The differences that matter
The shorter person can lose the benefit of a mesh back
If the front edge presses behind your knees, sitting farther forward can leave the backrest out of reach. In that situation, Soji’s mesh is beside the point. Amia retracts another 0.75 inch, giving a shorter-thighed user a better chance of using the back support while keeping knee clearance. If your comfortable seat depth is already within 16.25 to 18.5 inches, that advantage disappears and Soji’s mesh becomes a reasonable preference. This is a fit screen, not a promise based on your height.
How we reached this conclusion
16.25 minus 15.5 equals 0.75 inch. Seat depth crossed with backrest contact and knee clearance. General setup guidance: OSHA.
A deeper seat does not have to mean a larger desk corner
Both can reach an 18.5-inch seat setting, yet their published bodies use different amounts of space. Amia is about 1.4 inches narrower and its maximum listed depth is 2.25 inches less than Soji’s. That makes Amia worth checking when a shared home office also needs a walkway past the chair. It does not prove the chair will tuck under your desk. Arm height, the desk apron, swivel and recline can use the space you thought you had saved.
How we reached this conclusion
28 minus 26.625 equals 1.375 inches. 27 minus 24.75 equals 2.25 inches. Static body dimensions are not a measured operating envelope.
Sharing the chair works only inside both people’s usable range
A household needing comfortable seat settings of 15.75 and 18 inches can reach both on Amia. Soji covers the longer setting but misses the shorter one. Reverse the problem, with one person needing 18.75 inches, and Amia is the chair that runs out of travel. These are examples using already-established comfortable settings, not body measurements that prescribe a chair. Both people also need to reset height, arms and manual tension. A wider adjustment range helps only when it includes the settings each person actually needs.
How we reached this conclusion
Interval membership using hypothetical known-good seat settings, with no invented body-height conversion.
Choice A
Steelcase, 4821410
Amia
You need a seat setting of at least 15.5 but below 16.25 inches that Soji cannot reach. Check knee clearance in person.
- Best matched use
- You need a seat setting of at least 15.5 but below 16.25 inches that Soji cannot reach. Check knee clearance in person.
Checked facts
- Usable seat depth: 15.5 to 18.5 inches
- Standard seat height: 16 to 21 inches
- Back and seat: Upholstered back and cushioned seat
- Overall body: 26.625 inches wide, 21.75 to 24.75 inches deep
Choice B
Haworth, Mist
Soji
You want a mesh back while keeping a cushioned seat, and its 16.25 to 18.75-inch depth range fits you. The selected Soji has no forward tilt.
- Best matched use
- You want a mesh back while keeping a cushioned seat, and its 16.25 to 18.75-inch depth range fits you. The selected Soji has no forward tilt.
Checked facts
- Usable seat depth: 16.25 to 18.75 inches
- Standard seat height: 16.4 to 21 inches
- Back and seat: Selected Mist mesh back and cushioned seat
- Overall body: 28 inches wide, 27 inches deep
Meaningful differences
What changes the fit
| What changes | Steelcase Amia | Haworth Soji | Why it matters |
|---|---|---|---|
| Usable seat depth | 15.5 to 18.5 inches | 16.25 to 18.75 inches | Amia reaches 0.75 inch shorter. Soji reaches 0.25 inch deeper. The shared range is 16.25 to 18.5 inches. |
| Standard seat height | 16 to 21 inches | 16.4 to 21 inches | The same upper limit means neither is a solution to every high desk. |
| Back and seat | Upholstered back and cushioned seat | Selected Mist mesh back and cushioned seat | Choose the surface you prefer after checking body fit. Neither has a mesh seat here. |
| Overall body | 26.625 inches wide, 21.75 to 24.75 inches deep | 28 inches wide, 27 inches deep | Amia’s published body is narrower and shallower. These are not the clearance needed to recline, roll or pass behind it. |
| Recline control | Manual tension and upright back lock | Manual tension and upright back lock | Two people sharing the desk may want different resistance, even if they use the same seat height. |
| Selected adjustments | 4D arms and height-adjustable LiveLumbar | 4D arms and adjustable lumbar, without forward tilt | Do not price a forward-tilt Soji configuration and then buy this different listing. |
What you give up
Every choice has a cost
If you choose Steelcase Amia
- Pay more only if the shorter seat setting or upholstered back solves a real preference or fit problem.
If you choose Haworth Soji
- If both fit, compare the exact new offers and return terms. A lower price is useful only when the selected configuration is right.
Recommendation switch
The decision flips if...
Your required depth is below 16.25 inches but at least 15.5
Choose Steelcase Amia. Amia reaches the shorter setting. Trial fit still decides comfort.
Both ranges fit and a mesh back is the priority
Choose Haworth Soji. Soji gives you mesh behind a cushioned seat without needing an Amia Air substitution.
The desk forces either chair too high for supported feet
Choose neither. Resolve the desk and foot-support setup before expecting a chair swap to fix it.
What matters in practice
Before you choose
A breathable back is appealing, but it does not help if the seat keeps you from sitting against it. Check usable seat depth before deciding by upholstery.
What this comparison cannot tell you
- Manufacturer dimensions describe an adjustment range, not a guarantee of comfort for a particular height or body shape.
- No chair is presented as a treatment for pain. Desk height, keyboard position, movement breaks and individual fit still matter.
What the facts say
What the comparison shows
Useful conclusions from the current office chairs comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Steelcase Amia |
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| Haworth Soji |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Steelcase Amia
You need a seat setting of at least 15.5 but below 16.25 inches that Soji cannot reach. Check knee clearance in person.
You prefer an upholstered back and want to set recline resistance yourself. Check the selected carpet casters against your floor.
See price & reviews on AmazonHaworth Soji
You want a mesh back while keeping a cushioned seat, and its 16.25 to 18.75-inch depth range fits you. The selected Soji has no forward tilt.
You need a setting beyond Amia’s 18.5-inch maximum. The extra quarter inch is small, so trial fit matters.
See price & reviews on AmazonLinks open in a new tab.