X-Chair X1 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.
1 in
more seat-height adjustment on X-Chair X1 than SIHOO Doro C300 Ultra V2 (official specs)
Differences at a glance
Sources
- X1 Flex Mesh Office Chair | X-Chair Official Site ↗Checked Sep 29, 2026
- Doro C300 Ultra V2 Zero‑Gravity Full‑Body Adaptive Ergonomic Chair – UK Sihoo official Shop ↗Checked Oct 13, 2026
- Sihoo Doro C300 Ultra V2 | Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 13, 2026
- X-Chair - Warranty & Damages ↗Checked Sep 29, 2026
X-Chair X1SIHOO Doro C300 Ultra V2
- Price
- $729$679.99 – $689.99
- Seat height
- 15.56–19.75 in47.5–55.5 cm (≈ 18.7-21.9 in)
- Seat depth
- 16–18 in16.9–18.5 in (≈ 43-47 cm)
- Load capacity
- 275 lb (125 kg)330 lb (≈ 150 kg)
- Recline
- Extensive Variable Recline allows you to recline and lock into position. Recline tension can be adjusted using one tension-resistant control.Recline Angles 105°, 120°, 135°
- Arms
- 4-Dimensional armrests come standard (up, down, side-to-side, front-to-back); option to upgrade to FS 360 rotational armrests; Armrest Height 7.125in - 10.625in8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
- Headrest
- Optional add-on (standard configuration: No headrest; Headrest +$60)Ultra-wide 3D headrest, adjusts in three directions
- Lumbar support
- Dynamic Variable Lumbar (DVL)® Support; height adjustable backrest raises the DVL®Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
- Warranty
- 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)3 years (covers manufacturing defects)
Questions
Which is cheaper, the X-Chair X1 or the SIHOO Doro C300 Ultra V2?
The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 versus $729 for the X-Chair X1 at the brand stores (Sep 2026).
Which has a higher weight capacity?
The SIHOO Doro C300 Ultra V2, rated for 330 lb versus 275 lb for the X-Chair X1.
Which has a headrest?
Both: the X-Chair X1 as an option and the SIHOO Doro C300 Ultra V2 as standard.
