SIHOO Doro S100 vs SIHOO Doro C300 Pro: Which Should You Buy?
The Doro S100 lists $290 lower, but the C300 Pro has 6D armrests where the Doro S100 has 4D.
$290
lower starting price for SIHOO Doro S100 than SIHOO Doro C300 Pro at the brand stores
Differences at a glance
Sources
- Doro S100 Ergonomic Chair | Dual Lumbar Support & 4D Armrests – UK Sihoo official Shop ↗Checked Oct 8, 2026
- Sihoo Doro C300 Pro Ergonomic Office Chair Fully Loaded Comfort – EU Sihoo official Shop ↗Checked Oct 8, 2026
- Sihoo Doro S100 Ergonomic Office Chair with Dual Dynamic Lumbar Support – Official US Sihoo Store ↗Checked Oct 8, 2026
- Sihoo Doro C300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 8, 2026
- Doro C300 Pro Ergonomic Office Chair | Adjustable Lumbar, 6D Armrests, Smart Recline – UK Sihoo official Shop ↗Checked Oct 8, 2026
- Price
- $499.99 – $509.99$789.99 – $839.99
- Seat height
- 46–54 cm46–56.7 cm
- Seat depth
- 15.15–17.12 in (≈ 38.5-43.5 cm)16.81–17.76 in (≈ 42.7-45.1 cm)
- Load capacity
- 330 lb (≈ 150 kg)330 lb (≈ 150 kg)
- Recline
- Reclines up to 135°Maximum recline angle of 135°
- Arms
- 4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage); Up and down 2.76 in, forward and back 1.18 in, side to side, rotate 72°6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)
- Headrest
- Integrated headrest adjusts up or down; upper backrest in five levelsHeadrest adjusts up and down, back and forth, or rotates
- Lumbar support
- Dual dynamic lumbar supportLumbar support automatically conforms to your spine (BM Tracking System)
- Warranty
- 3 years3 years
Questions
Which is cheaper, the SIHOO Doro S100 or the SIHOO Doro C300 Pro?
The SIHOO Doro S100 is cheaper to start: $499.99 versus $789.99 for the SIHOO Doro C300 Pro at the brand stores (Oct 2026).
Which has a higher weight capacity?
Neither. Both are rated for 330 lb in their official specifications.
Which has a headrest?
Both: the SIHOO Doro S100 as standard and the SIHOO Doro C300 Pro as standard.
As an Amazon Associate I earn from qualifying purchases. Search links may include other models or accessories; confirm the exact item, seller and condition before buying.
Read the full comparison
Key difference: The Doro S100 lists $290 lower, but the C300 Pro has 6D armrests where the Doro S100 has 4D.
What follows compares the Doro S100 and C300 Pro on SIHOO's own specifications and regular US list prices, not on a Chairpedia test.
Why compare them
Why put the SIHOO Doro S100 next to the SIHOO Doro C300 Pro? The Doro S100 and Doro C300 Pro are both upper models in SIHOO's Doro line, built around different backrest and lumbar ideas.
Specs side by side
| Official specs | SIHOO Doro S100 | SIHOO Doro C300 Pro |
|---|---|---|
| Sizes |
|
|
| Recommended user height |
|
|
| Seat height |
|
|
| Seat depth |
|
|
| Seat width |
|
|
| Load capacity |
|
|
| Recline |
|
|
| Arms |
|
|
| Lumbar support |
|
|
| Headrest |
|
|
| Warranty |
|
|
| Chair weight |
|
|
Strengths and weaknesses
SIHOO Doro S100
Strengths
- Lower list price: from $499.99 against $789.99 for the C300 Pro.
Weaknesses
- 4D armrests, against 6D on the C300 Pro.
- No footrest version is listed for the Doro S100, unlike the C300 Pro.
SIHOO Doro C300 Pro
Strengths
- 6D armrests, against 4D armrests on the Doro S100.
- A Footrest Version is sold; none is listed for the Doro S100.
Weaknesses
- Costs more: from $789.99 against $499.99 for the Doro S100.
How they differ
Price. At regular US list prices the SIHOO Doro S100 is $499.99–$509.99 and the SIHOO Doro C300 Pro is $789.99–$839.99. The Doro S100 lists $290 below the C300 Pro, before any store sale. Price options: the Doro S100 — Black $499.99, White $509.99; the C300 Pro — $789.99–$839.99.
Armrests. The SIHOO Doro S100 lists “4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage); Up and down 2.76 in, forward and back 1.18 in, side to side, rotate 72°”, the SIHOO Doro C300 Pro “6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)”. With 6D armrests the C300 Pro lets you set the pads in more ways than the Doro S100.
Footrest. SIHOO sells a Footrest Version of the C300 Pro; no such version is listed for the Doro S100.
Seat size. Seat height: the SIHOO Doro S100 lists “18.11–21.26 in (46–54 cm)”, the SIHOO Doro C300 Pro “18.11–22.32 in (46–56.7 cm)”. Seat width: the SIHOO Doro S100 lists “20.08 in (51 cm)”, the SIHOO Doro C300 Pro “20.28 in (≈51.5 cm)”. Seat depth: the SIHOO Doro S100 lists “15.15–17.12 in (≈38.5–43.5 cm)”, the SIHOO Doro C300 Pro “16.81–17.76 in (≈42.7–45.1 cm)”.
Other details. For the Doro S100 and C300 Pro, the table above gives the headrest, lumbar support and chair weight in each brand's own wording.
Same on both. The Doro S100 and C300 Pro list the same recline (up to 135°), warranty (3 years) and maximum load (330 lb, ≈150 kg).
Who should buy which
- Pick the Doro S100 over the C300 Pro if you want the lower price — the Doro S100 lists $290 below the C300 Pro.
- Pick the Doro S100 over the C300 Pro if you want a lighter chair to move around: 49.13 lb (≈22.3 kg) against 55.34 lb (≈25.1 kg).
- Pick the C300 Pro over the Doro S100 if you want 6D armrests rather than 4D.
- Pick the C300 Pro over the Doro S100 if you want a built-in footrest (Footrest Version).
- Pick the C300 Pro over the Doro S100 if you want a seat that rises higher: 18.11–22.32 in (46–56.7 cm).
Sources
- SIHOO Doro S100 (compared here with the C300 Pro): Doro S100 Ergonomic Chair | Dual Lumbar Support & 4D Armrests – UK Sihoo official Shop; Sihoo Doro S100 Ergonomic Office Chair with Dual Dynamic Lumbar Support – Official US Sihoo Store, checked 2026-10-08; US list price from SIHOO US Official Store, checked 2026-10-08.
- SIHOO Doro C300 Pro (compared here with the Doro S100): Sihoo Doro C300 Pro Ergonomic Office Chair Fully Loaded Comfort – EU Sihoo official Shop; Sihoo Doro C300 Pro Ergonomic Office Chair – Official US Sihoo Store; Doro C300 Pro Ergonomic Office Chair | Adjustable Lumbar, 6D Armrests, Smart Recline – UK Sihoo official Shop, checked 2026-10-08; US list price from SIHOO US Official Store, checked 2026-10-08.
- Figures marked ≈ for the Doro S100 and C300 Pro are Chairpedia's unit conversions, not brand figures.
Frequently asked
- Which is cheaper, the SIHOO Doro S100 or the SIHOO Doro C300 Pro?
- The SIHOO Doro S100: at regular US list prices it starts at $499.99, against $789.99 for the SIHOO Doro C300 Pro, a gap of $290; sale prices for the Doro S100 and C300 Pro change often, so check both stores before ordering.
- Which has more adjustable armrests, the Doro S100 or the C300 Pro?
- The SIHOO Doro C300 Pro, listed with "6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)", against "4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage); Up and down 2.76 in, forward and back 1.18 in, side to side, rotate 72°" on the SIHOO Doro S100.
- Which is sold with a footrest, the Doro S100 or the C300 Pro?
- The SIHOO Doro C300 Pro: SIHOO sells a Footrest Version at the upper end of the $789.99–$839.99 list-price range, and no footrest version is listed for the SIHOO Doro S100.
- Which is lighter, the Doro S100 or the C300 Pro?
- The SIHOO Doro S100, at 49.13 lb (≈22.3 kg) against 55.34 lb (≈25.1 kg) for the SIHOO Doro C300 Pro.
Affiliate links: we may earn a commission from qualifying purchases. Check current delivery, return and warranty terms on Amazon.
Swap in a similar chair
Compare SIHOO Doro S100 with
Compare SIHOO Doro C300 Pro with
More comparisons
- SIHOO Doro S100 vs HBADA E3 Pro (2026 Edition) Arms: 4D coordinated armrests on SIHOO Doro S100; Armrest Height: 28.3"–34.4" on HBADA E3 Pro (2026 Edition).
- SIHOO Doro S100 vs SIHOO M18 Arms: 4D coordinated armrests on SIHOO Doro S100; Adjustable armrests on SIHOO M18.
- SIHOO Doro S100 vs SIHOO Doro C300 Pro V2 Arms: 4D coordinated armrests on SIHOO Doro S100; 8D Bionic Armrests on SIHOO Doro C300 Pro V2.
- SIHOO Doro C300 Pro vs Steelcase Gesture Arms: 6D coordinated armrests on SIHOO Doro C300 Pro; Width 10.25–22.5 in between arms on Steelcase Gesture.
- SIHOO Doro C300 Pro vs HBADA X7 Air SIHOO Doro C300 Pro lists at $789.99 – $839.99; HBADA X7 Air at $1,399 (official stores).
- SIHOO Doro C300 Pro vs HBADA E3 Pro (2026 Edition) Arms: 6D coordinated armrests on SIHOO Doro C300 Pro; Armrest Height: 28.3"–34.4" on HBADA E3 Pro (2026 Edition).