Okamura Sylphy vs Humanscale Diffrient Smart
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
Differences at a glance
Sources
- Sylphy | Office | Product information | Okamura Corporation ↗Checked Sep 29, 2026
- Ergonomic Mesh Back Office Chair | Diffrient Smart | Humanscale ↗Checked Sep 29, 2026
- Okamura office seating safety and warranty periods (updated Jan 28, 2026) ↗Checked Sep 29, 2026
- OKAMURA Lifestyle Store (Japan) (price) ↗Checked Oct 11, 2026
Okamura SylphyHumanscale Diffrient Smart
- Price
- From ¥106,040$1,987
- Recline
- Back-seat synchro recline with forward tilt: 23° upright to reclined, 10° upright to forward; locks in 4 positions18° recline + 8° backrest tilt
- Arms
- Adjustable arms: 100 mm height; arm pad 50 mm front-back, 20° inward, 20° outwardFixed Duron Arms / Adjustable Duron Arms / 4D Adj Duron Arms / Armless
- Lumbar support
- Lumbar support (mesh back): height adjusts over 60 mmTri-panel Form-Sensing mesh adapts its lumbar support to each user (no manual lumbar adjustment)
- Warranty
- Structure 8 years (purchases from Jan 5, 2021); mechanisms and moving parts 2 years; exterior and surface finish 1 year15-year, 24/7 warranty
What users mention
From 2 Okamura Sylphy and 2 Humanscale Diffrient Smart user reviews, most mentioned first. Green is liked, orange is a caution.
Comfort
Okamura Sylphy4 mentionsHumanscale Diffrient Smart3 mentionsPrice and value
Okamura Sylphy4 mentionsHumanscale Diffrient Smart2 mentionsAdjustability
Okamura Sylphy2 mentionsHumanscale Diffrient Smart3 mentionsDesign
Okamura Sylphy2 mentionsHumanscale Diffrient Smart3 mentionsBuild quality
Okamura Sylphy3 mentionsHumanscale Diffrient Smart1 mentionBack support
Okamura Sylphy2 mentionsHumanscale Diffrient Smart2 mentions
Questions
What do owners mention most?
Comfort for the Okamura Sylphy, and comfort for the Humanscale Diffrient Smart, based on review summaries.
Okamura Sylphy: specs, reviews, where to buy →Humanscale Diffrient Smart: specs, reviews, where to buy →
Swap in a similar chair
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More comparisons
- Okamura Sylphy vs Herman Miller Aeron Arms: Adjustable arms: 100 mm height on Okamura Sylphy; Arm height 7.5–11.5 in on Herman Miller Aeron.
- Okamura Sylphy vs Steelcase Gesture Arms: Adjustable arms: 100 mm height on Okamura Sylphy; Width 10.25–22.5 in between arms on Steelcase Gesture.
- Humanscale Diffrient Smart vs Herman Miller Aeron Load capacity: up to 400 lbs. on Humanscale Diffrient Smart; 300 / 350 / 400 lb on Herman Miller Aeron.
- Humanscale Diffrient Smart vs Steelcase Gesture Load capacity: up to 400 lbs. on Humanscale Diffrient Smart; 400 lb on Steelcase Gesture.