SIHOO Doro C300 Ultra V2 vs Sidiz T80
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
12 years
longer warranty on Sidiz T80 than SIHOO Doro C300 Ultra V2 (official terms)
Differences at a glance
Sources
- Sihoo Doro C300 Ultra V2 | Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 13, 2026
- T80 work-tech chair – SIDIZ (SIDIZ official store, Korea) ↗Checked Sep 29, 2026
SIHOO Doro C300 Ultra V2Sidiz T80
- Price
- $679.99 – $689.99₩689,000 – ₩859,000
- Load capacity
- 330 lb (≈ 150 kg)Maximum load 125 kg (≈ 276 lb)
- Recline
- Recline Angles 105°, 120°, 135°Multi-limited tilt (limits backrest recline angle), tilt tension adjustment
- Arms
- 8D Bionic Armrests (up, down, forward, back, rotate, or tilt)3D adjustable armrests (height, front-back position, left-right angle)
- Headrest
- Ultra-wide 3D headrest, adjusts in three directionsHeadrest height / angle adjustment
- Lumbar support
- Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levelsLumbar support height adjustment
- Warranty
- 3 years (covers manufacturing defects)15-year quality warranty (for customers who register the product)
Questions
Which has a headrest?
Both: the SIHOO Doro C300 Ultra V2 as standard and the Sidiz T80 as standard.
Swap in a similar chair
Compare SIHOO Doro C300 Ultra V2 with
Compare Sidiz T80 with
More comparisons
- SIHOO Doro C300 Ultra V2 vs SIHOO Doro S300 Arms: 8D Bionic Armrests on SIHOO Doro C300 Ultra V2; 6D coordinated armrests on SIHOO Doro S300.
- Sidiz T80 vs Herman Miller Aeron Headrest: Headrest height / angle adjustment on Sidiz T80; None offered by Herman Miller on Herman Miller Aeron.
- Sidiz T80 vs Steelcase Gesture Headrest: Headrest height / angle adjustment on Sidiz T80; Optional on Steelcase Gesture.




