RESPAWN FLEXX vs SIHOO B300 Pro
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$69.01
lower starting price for SIHOO B300 Pro than RESPAWN FLEXX at the brand stores
Differences at a glance
Sources
- RESPAWN product page — specifications ↗Checked Oct 17, 2026
- Sihoo B300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 16, 2026
RESPAWN FLEXXSIHOO B300 Pro
- Price
- $399$329.99 – $379.99
- Seat height
- 19.3–22.2 in46.8–55.3 cm
- Seat depth
- 18.9–20.5 in16.5–18.5 in (≈ 42-47 cm)
- Load capacity
- 300 lb330 lb (≈ 150 kg)
- Headrest
- height-adjustable, pivoting, padded3D Ultra-Wide Headrest
- Lumbar support
- padded, adjustable4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustment
Questions
Which is cheaper, the RESPAWN FLEXX or the SIHOO B300 Pro?
The SIHOO B300 Pro is cheaper to start: $329.99 versus $399 for the RESPAWN FLEXX at the brand stores (Oct 2026).
Which has a higher weight capacity?
The SIHOO B300 Pro, rated for 330 lb versus 300 lb for the RESPAWN FLEXX.
Which has a headrest?
Both: the RESPAWN FLEXX as standard and the SIHOO B300 Pro as standard.
