Okamura Contessa II vs Herman Miller Aeron: Which Should You Buy?
Compare configurations, fit checks and purchase terms using manufacturer documentation.
Herman Miller
Herman Miller Aeron
$1,775 – $2,840
Differences at a glance
Sources
- Okamura Contessa II Spec Guide, Global (BIFMA, mm), January 2026 ↗Checked Sep 26, 2026
- Aeron Chair – Specs (hermanmiller.com) ↗Checked Sep 26, 2026
- Contessa II | Okamura global (okamura.com, Asia Pacific English) ↗Checked Sep 26, 2026
- Aeron Chairs product sheet (PDF, © 2026 MillerKnoll) ↗Checked Sep 26, 2026
- Okamura Japan product page: Contessa Seconda (Japanese) ↗Checked Sep 26, 2026
- Aeron Chair – Herman Miller Store (US) ↗Checked Sep 26, 2026
- Okamura Global General Warranty Statement (excludes Japan) ↗Checked Sep 26, 2026
- OKAMURA Lifestyle Store (Japan) (price) ↗Checked Oct 11, 2026
- Price
- ¥243,650 – ¥377,410$1,775 – $2,840
- Seat height
- 434–544 mm (17.1–21.4 in)14.4–19.3 in (36.6–49 cm); 14.8–22.8 in (37.6–57.9 cm); 15.8–22.8 in (40.1–57.9 cm)
- Seat depth
- 400–450 mm (15.7–17.7 in)16 / 17 / 18.5 in (40.6 / 43.2 / 47.0 cm)
- Load capacity
- 300 lb (136 kg)300 / 350 / 400 lb (136 / 158.8 / 181.4 kg)
- Recline
- Ankle-tilt reclining; recline angle 26°Harmonic 2 Tilt; options: Standard/Basic tilt, Tilt Limiter, Tilt Limiter with Seat Angle
- Arms
- 4D arm or fixed arm; armrest height from the floor 604–814 mm (4D arm), 639–749 mm (fixed arm) (23.8–32 in; 25.2–29.5 in)Arm height 7.5–11.5 in (adjustable arms); 8.5 in (fixed arms); Options: Fully Adjustable Arms, Height-Adjustable Arms with Pivot, Height-Adjustable Arms, No Arms, Stationary Arms; Arm Height 7.5–11.5 in (Fully Adjustable Arms, specs page)
- Headrest
- Options: large fixed headrest or small adjustable headrest (up/down, front/back, swivel)None offered by Herman Miller
- Lumbar support
- Optional lumbar support with 60 mm height adjustment (can be retrofitted) (2.4 in)Options: No additional support, PostureFit, Adjustable Lumbar Support, Adjustable PostureFit SL
- Warranty
- 10 years: structural components, including mechanisms and adjustable arms; 5 years: casters, gas cylinder, adjustment levers; 2 years: coating finish, mesh and fabric, cushions, arm pads12-year, 3-shift warranty, with limited exceptions
What users mention
From 2 Okamura Contessa II and 423 Herman Miller Aeron user reviews, most mentioned first. Green is liked, orange is a caution.
Price and value
Okamura Contessa II6 mentionsHerman Miller Aeron180 mentionsComfort
Okamura Contessa II7 mentionsHerman Miller Aeron138 mentionsAdjustability
Okamura Contessa II5 mentionsHerman Miller Aeron127 mentionsBuild quality
Okamura Contessa II5 mentionsHerman Miller Aeron114 mentionsSize and fit
Okamura Contessa II4 mentionsHerman Miller Aeron93 mentionsBreathability
Okamura Contessa II7 mentionsHerman Miller Aeron88 mentions
Questions
Which has a headrest?
Only the Okamura Contessa II (as an option); the Herman Miller Aeron does not offer one.
What do owners mention most?
Comfort for the Okamura Contessa II, and price and value for the Herman Miller Aeron, based on review summaries.
As an Amazon Associate I earn from qualifying purchases. Search links may include other models or accessories; confirm the exact item, seller and condition before buying.
Identify the generation before comparing a new or used offer.
Read the Contessa II / Seconda guideChoose the size and generation before comparing offers.
Choose Aeron size A, B or CRead the full comparison
Contessa II or Aeron: which should you shortlist?
Shortlist Contessa II if a manufacturer-listed headrest option or upholstered seat is important. Shortlist Aeron if you want to compare three chair sizes with a suspension seat and back. Neither feature list establishes which will feel better for you. This is a research-based comparison, not a hands-on test.
Compare the configuration, not just the model name
| Official specs | Okamura Contessa II | Herman Miller Aeron |
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| Sizes |
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| Seat height |
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| Seat depth |
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| Seat width |
| Not stated |
| Load capacity |
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| Recline |
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| Arms |
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| Lumbar support |
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| Headrest |
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| Warranty |
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| Chair weight | Not stated |
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Sources: Okamura Contessa II specifications and options; Herman Miller Aeron specifications and options.
Fit checks before checkout
Our recommendation is to check the exact chair's seat height, seat depth, arm clearance and return conditions against your desk and body measurements. We do not assign either model a universal user-height range or infer comfort from its weight. Try the configuration you intend to order when practical.
Compare the total purchase terms
Ask each seller for an itemized quote covering the chair configuration, delivery, taxes and any assembly charge. Confirm who handles returns, return freight and warranty service in your country. We have not verified live prices, stock, delivery eligibility or seller-specific coverage, so this comparison does not declare a price or warranty winner.
Okamura identifies Teknion as its partner for the USA and Canada. Use the manufacturer's regional availability information to start that inquiry. A marketplace search can contain accessories or other models; confirm the exact chair before ordering. Official-source links here are not affiliate links; retailer links elsewhere on this page may earn us a commission.
Continue your research
Frequently asked
- Does every Contessa II include a headrest?
- No. Okamura lists fixed and adjustable headrests as options. Confirm the configuration in the seller quote.
- Which chair is better for taller users?
- This comparison does not assign a height-based winner. Aeron has sizes A, B and C; compare the exact chair dimensions, your desk and your own measurements before ordering.
- Which chair costs less?
- We have not verified live, like-for-like prices. Compare quotes for the selected configurations, including delivery, taxes and return costs.
Affiliate links: we may earn a commission from qualifying purchases. Check current delivery, return and warranty terms on Amazon.
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