FlexiSpot Standard Ergo Office Chair (C4) vs SIHOO Doro C300 Pro V2
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

FlexiSpot
FlexiSpot Standard Ergo Office Chair (C4)
$219.99 – $239.99
VS

SIHOO
SIHOO Doro C300 Pro V2
$499.99 – $549.99
$280
lower starting price for FlexiSpot Standard Ergo Office Chair (C4) than SIHOO Doro C300 Pro V2 at the brand stores
Differences at a glance
Sources
- Standard Ergonomic Office Chair | FlexiChair C4 | Flexispot ↗Checked Oct 17, 2026
- Sihoo Doro C300 Pro V2 Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 16, 2026
FlexiSpot Standard Ergo Office Chair (C4)SIHOO Doro C300 Pro V2
- Price
- $219.99 – $239.99$499.99 – $549.99
- Seat height
- 17.91–20.87 in17.5–20.9 in
- Seat depth
- 19.49 inSeat Depth 16.9" - 18.5"
- Load capacity
- 300 lb330 lb (≈ 150 kg)
- Recline
- 90–135°Recline Angles 105°, 120°, 135°
- Arms
- 3D8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
- Headrest
- 3DUltra-wide 3D headrest, adjusts in three directions
- Lumbar support
- fixedDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
- Warranty
- 5 years3 years (covers manufacturing defects)
Questions
Which is cheaper, the FlexiSpot Standard Ergo Office Chair (C4) or the SIHOO Doro C300 Pro V2?
The FlexiSpot Standard Ergo Office Chair (C4) is cheaper to start: $219.99 versus $499.99 for the SIHOO Doro C300 Pro V2 at the brand stores (Oct 2026).
Which has a higher weight capacity?
The SIHOO Doro C300 Pro V2, rated for 330 lb versus 300 lb for the FlexiSpot Standard Ergo Office Chair (C4).
Which has a headrest?
Both: the FlexiSpot Standard Ergo Office Chair (C4) as standard and the SIHOO Doro C300 Pro V2 as standard.
FlexiSpot Standard Ergo Office Chair (C4): specs, reviews, where to buy →SIHOO Doro C300 Pro V2: specs, reviews, where to buy →
Swap in a similar chair
Compare FlexiSpot Standard Ergo Office Chair (C4) with
Compare SIHOO Doro C300 Pro V2 with
More comparisons
- SIHOO Doro C300 Pro V2 vs Herman Miller Aeron Arms: 8D Bionic Armrests on SIHOO Doro C300 Pro V2; Arm height 7.5–11.5 in on Herman Miller Aeron.
- SIHOO Doro C300 Pro V2 vs Steelcase Leap V2 Load capacity: 330 lb on SIHOO Doro C300 Pro V2; 400 lb on Steelcase Leap V2.
- SIHOO Doro C300 Pro V2 vs HBADA X7 Smart SIHOO Doro C300 Pro V2 lists at $499.99 – $549.99; HBADA X7 Smart at $1,509 (official stores).
- SIHOO Doro C300 Pro V2 vs LiberNovo Omni Arms: 8D Bionic Armrests on SIHOO Doro C300 Pro V2; 4D Armrest Adjustment on LiberNovo Omni.






