Comparisons
Contessa II vs Aeron: Seat Fit and Configuration Compared
Compare Contessa II and Aeron by frame size, seat configuration, adjustment location and headrest options, with a practical seller checklist.
By the Chairpedia Editorial Team·June 25, 2026·2 min read
Choose between the exact configurations, not a general claim that one brand is more comfortable. Start with seat fit and the controls you want, then compare the complete offer from the seller.
Four differences to verify
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| Check | Herman Miller Aeron | Okamura Contessa II |
|---|---|---|
| Seat fit | Choose the appropriate A, B or C frame. | Check the offered seat-depth adjustment and regional dimensions; one frame is not a universal fit. |
| Seat construction | Suspension seat; compare the edge and frame against your legs. | Mesh, fabric and leather configurations appear in the manufacturer lineup. Confirm the specific seat build. |
| Control location | Use the guide for the fitted Aeron tilt and back-support options. | Armrest levers control height and recline; other adjustments are separate. |
| Headrest | Verify any added headrest and compatibility separately. | Fixed and adjustable options are distinct; not every headrest adjusts. |
What to test in person
Use the same desk and shoes for both chairs if possible. Check seat-edge contact, how closely you can approach the keyboard, and whether the back support reaches a useful position for you. Compare recline at similar resistance, not at arbitrary showroom settings.
Do not choose based on our former star ratings for lumbar support or on a universal “soft versus firm mesh” verdict. Those would require a defined comparison method and evidence we do not have. This guide uses documented configuration differences and a test you can repeat.
Before requesting a quote
- Aeron: specify size, generation, arms, back support and tilt.
- Contessa II: specify seat upholstery, arms, headrest type and regional model code.
- For both: ask for the delivered total, assembly requirements, return costs and who handles service.
A manufacturer's dimensional drawing is not automatically a usable seat measurement. Read its arrows and configuration notes. Likewise, a price from another country does not establish the delivered price or warranty coverage for your address.
Next: Aeron size selection, Contessa generation and used-condition checks, Contessa II details and Aeron details.
Sources and method
Manufacturer documentation checked September 13, 2026. This is an editorial buying guide, not a controlled comparison or a medical recommendation. The diagrams organize purchase checks; they do not show measured performance.
Existing article photographs and illustrations
Retained from the earlier edition. These images are contextual illustrations; the current checks and source documents above govern configuration details.
Compare the configured chairs
Match the offered seat, arms and headrest to your shortlist. For Aeron, also confirm the size and generation. Verify delivery and seller coverage separately.
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Okamura Contessa II
Identify the generation before comparing a new or used offer.
- Confirm Contessa II / Seconda rather than the original Contessa.
- Check the listed seat material, headrest and regional configuration.
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Check the selected model, seller, delivery and return terms on the destination.
Herman Miller Aeron
Choose the size and generation before comparing offers.
- Match size A, B or C to the exact chair in the listing.
- Confirm Classic or Remastered, fitted controls and condition.
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Check the selected model, seller, delivery and return terms on the destination.