SIHOO M18 vs Herman Miller Zeph
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
- M18 Classic Ergonomischer Bürostuhl – SIHOO DE official store ↗Checked Oct 16, 2026
- Zeph Multipurpose Armchair - Herman Miller Store ↗Checked Oct 17, 2026
- Sihoo M18 Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
SIHOO M18Herman Miller Zeph
- Price
- $289.99 – $299.99$560 – $715
- Seat height
- 44–54 cm14.75–20.25 in
- Seat depth
- 17.91 in (≈ 45.5 cm)17 in
- Load capacity
- 330 lb (≈ 150 kg)350 lb
- Warranty
- 3 years12 years
Questions
Which is cheaper, the SIHOO M18 or the Herman Miller Zeph?
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.
Swap in a similar chair
Compare SIHOO M18 with
Compare Herman Miller Zeph with
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- SIHOO M18 vs Branch Ergonomic Chair Arms: Adjustable armrests on SIHOO M18; 3D removable armrests on Branch Ergonomic Chair.
- SIHOO M18 vs FlexiSpot OC3 Arms: Adjustable armrests on SIHOO M18; 2D on FlexiSpot OC3.