Autonomous ErgoChair Ultra 2 vs SIHOO M57
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$129.01
lower starting price for SIHOO M57 than Autonomous ErgoChair Ultra 2 at the brand stores
Differences at a glance
Sources
- Flex-Frame Ergonomic Office Chair | Autonomous ErgoChair Ultra 2 ↗Checked Oct 17, 2026
- Sihoo M57 Netz Bürostuhl – DE Sihoo Offizieller Shop ↗Checked Oct 9, 2026
- SIHOO M57 Ergonomic Mesh Office Chair – Official US Sihoo Store ↗Checked Oct 9, 2026
Autonomous ErgoChair Ultra 2SIHOO M57
- Price
- $449$319.99
- Seat height
- 18–23 in46–55 cm (≈ 18.1-21.7 in)
- Seat depth
- 18–20.5 in18.11 in (≈ 46 cm)
- Load capacity
- 320 lb330 lb (≈ 150 kg)
- Recline
- 25°Reclines up to 126°
- Headrest
- optionalHeadrest adjusts vertically up to 3.9 inches and rotates 45 degrees
- Warranty
- lifetime3 years
Questions
Which is cheaper, the Autonomous ErgoChair Ultra 2 or the SIHOO M57?
The SIHOO M57 is cheaper to start: $319.99 versus $449 for the Autonomous ErgoChair Ultra 2 at the brand stores (Oct 2026).
Which has a higher weight capacity?
The SIHOO M57, rated for 330 lb versus 320 lb for the Autonomous ErgoChair Ultra 2.
Which has a headrest?
Both: the Autonomous ErgoChair Ultra 2 as an option and the SIHOO M57 as standard.
Autonomous ErgoChair Ultra 2: specs, reviews, where to buy →SIHOO M57: specs, reviews, where to buy →
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