SIHOO B300 Pro vs Autonomous ErgoChair Ultra 2
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$119.01
lower starting price for SIHOO B300 Pro than Autonomous ErgoChair Ultra 2 at the brand stores
Differences at a glance
Sources
- Sihoo B300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 16, 2026
- Flex-Frame Ergonomic Office Chair | Autonomous ErgoChair Ultra 2 ↗Checked Oct 17, 2026
SIHOO B300 ProAutonomous ErgoChair Ultra 2
- Price
- $329.99 – $379.99$449
- Seat height
- 46.8–55.3 cm18–23 in
- Seat depth
- 16.5–18.5 in (≈ 42-47 cm)18–20.5 in
- Load capacity
- 330 lb (≈ 150 kg)320 lb
- Recline
- Three lockable recline angles: 105°, 120°, 135°25°
- Headrest
- 3D Ultra-Wide Headrestoptional
- Warranty
- 3-Year Free Warrantylifetime
Questions
Which is cheaper, the SIHOO B300 Pro or the Autonomous ErgoChair Ultra 2?
The SIHOO B300 Pro is cheaper to start: $329.99 versus $449 for the Autonomous ErgoChair Ultra 2 at the brand stores (Oct 2026).
Which has a higher weight capacity?
The SIHOO B300 Pro, rated for 330 lb versus 320 lb for the Autonomous ErgoChair Ultra 2.
Which has a headrest?
Both: the SIHOO B300 Pro as standard and the Autonomous ErgoChair Ultra 2 as an option.
SIHOO B300 Pro: specs, reviews, where to buy →Autonomous ErgoChair Ultra 2: specs, reviews, where to buy →
