Autonomous ErgoChair Pro vs SIHOO Doro C300 Ultra V2

Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

Autonomous

Autonomous ErgoChair Pro

$499

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

$180.99

lower starting price for Autonomous ErgoChair Pro than SIHOO Doro C300 Ultra V2 at the brand stores

Differences at a glance

Autonomous ErgoChair ProSIHOO Doro C300 Ultra V2

Price: $499$679.99 – $689.99
Seat height: 18.5–22 in (47–55.9 cm)47.5–55.5 cm (≈ 18.7-21.9 in)
Seat depth: 19–21.5 in (48.3–54.6 cm)16.9–18.5 in (≈ 43-47 cm)
Load capacity: 300 lb (136.1 kg)330 lb (≈ 150 kg)
Recline: Synchro-tilt; 22° recline range; 5 lock positions (Donati reclining mechanism)Recline Angles 105°, 120°, 135°
Arms: 3D armrests; armrest height 11–14 in from seat8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Headrest: Adjustable headrest (standard)Ultra-wide 3D headrest, adjusts in three directions
Lumbar support: Sliding (height-adjustable) lumbar; 6 in lumbar height rangeDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty: Lifetime warranty3 years (covers manufacturing defects)

Which is cheaper, the Autonomous ErgoChair Pro or the SIHOO Doro C300 Ultra V2?

The Autonomous ErgoChair Pro is cheaper to start: $499 versus $679.99 for the SIHOO Doro C300 Ultra V2 at the brand stores (Sep 2026).

Which has a higher weight capacity?

The SIHOO Doro C300 Ultra V2, rated for 330 lb versus 300 lb for the Autonomous ErgoChair Pro.

Which has a headrest?

Both: the Autonomous ErgoChair Pro as standard and the SIHOO Doro C300 Ultra V2 as standard.