SIHOO B300 Pro vs FlexiSpot Standard Ergo Office Chair (C4)
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
SIHOO
SIHOO B300 Pro
$329.99 – $379.99
VS
FlexiSpot
FlexiSpot Standard Ergo Office Chair (C4)
$219.99 – $239.99
2 years
longer warranty on FlexiSpot Standard Ergo Office Chair (C4) than SIHOO B300 Pro (official terms)
Differences at a glance
Sources
- Sihoo B300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 16, 2026
- Standard Ergonomic Office Chair | FlexiChair C4 | Flexispot ↗Checked Oct 17, 2026
SIHOO B300 ProFlexiSpot Standard Ergo Office Chair (C4)
- Price
- $329.99 – $379.99$219.99 – $239.99
- Seat height
- 46.8–55.3 cm17.91–20.87 in
- Seat depth
- 16.5–18.5 in (≈ 42-47 cm)19.49 in
- Load capacity
- 330 lb (≈ 150 kg)300 lb
- Recline
- Three lockable recline angles: 105°, 120°, 135°90–135°
- Arms
- 6D All-Around Armrests (rotate, adjust, flip up)3D
- Headrest
- 3D Ultra-Wide Headrest3D
- Lumbar support
- 4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustmentfixed
- Warranty
- 3-Year Free Warranty5 years
Questions
Which is cheaper, the SIHOO B300 Pro or the FlexiSpot Standard Ergo Office Chair (C4)?
The FlexiSpot Standard Ergo Office Chair (C4) is cheaper to start: $219.99 versus $329.99 for the SIHOO B300 Pro 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 FlexiSpot Standard Ergo Office Chair (C4).
Which has a headrest?
Both: the SIHOO B300 Pro as standard and the FlexiSpot Standard Ergo Office Chair (C4) as standard.
SIHOO B300 Pro: specs, reviews, where to buy →FlexiSpot Standard Ergo Office Chair (C4): specs, reviews, where to buy →
