Herman Miller Zeph vs SIHOO M18
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
9 years
longer warranty on Herman Miller Zeph than SIHOO M18 (official terms)
Differences at a glance
Sources
- Zeph Multipurpose Armchair - Herman Miller Store ↗Checked Oct 17, 2026
- M18 Classic Ergonomischer Bürostuhl – SIHOO DE official store ↗Checked Oct 16, 2026
- Sihoo M18 Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
Herman Miller ZephSIHOO M18
- Price
- $560 – $715$289.99 – $299.99
- Seat height
- 14.75–20.25 in44–54 cm
- Seat depth
- 17 in17.91 in (≈ 45.5 cm)
- Load capacity
- 350 lb330 lb (≈ 150 kg)
- Warranty
- 12 years3 years
Questions
Which is cheaper, the Herman Miller Zeph or the SIHOO M18?
The SIHOO M18 is cheaper to start: $289.99 versus $560 for the Herman Miller Zeph at the brand stores (Oct 2026).
Which has a higher weight capacity?
The Herman Miller Zeph, rated for 350 lb versus 330 lb for the SIHOO M18.
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