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Sihoo Doro C300

Ranked #22 of 24 in Best Ergonomic Office Chairs: Herman Miller, Steelcase, Haworth & More (2026). Here is every spec we scored, where it came from, and how it compares.

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S

#22

Sihoo Doro C300

Best for: Budget 4D arms, self-adaptive lumbar

4.2/10

What we like

Watch out for

Maximum seat height not published by Sihoo
Minimum seat height not published by Sihoo

Score breakdown

Weight capacity 25%

Warranty length 20%

Seat depth adjustment 15%

Maximum seat height * 10%

Minimum seat height * 10%

Armrest adjustments 10%

Adjustable lumbar * 5%

Forward tilt * 5%

* Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

* Other unpublished figures are scored at the category median so missing data neither helps nor hurts.

Weight capacity	330 lb
Warranty length	3 yr
Seat depth adjustment	0 in
Maximum seat height	Not listed
Minimum seat height	Not listed
Armrest adjustments	4 D
Adjustable lumbar	Not listed
Forward tilt	Not listed
Seat depth	18.11" (fixed)
Lumbar	Self-adaptive
Seat height	Not published by the maker
Price	Check price

Check price at Amazon

Specs source:

Sihoo: Doro C300

Sihoo Doro C300 head-to-head

Head-to-headSihoo Doro C300 Pro vs Sihoo Doro C300

How it compares

Open the full comparison table

Steelcase Leap

#1 · 4D arms, height-adjustable lumbar, 400 lb

Humanscale Freedom Task Chair

#2 · Self-adjusting recline, 400 lb, 15-year warranty

Haworth Soji XL

#3 · 24.5" wide seat warrantied to 600 lb

Steelcase Series 1

#4 · Steelcase's value chair with 4D arms and 400 lb

Steelcase Gesture

#5 · 360° arms built for devices, 400 lb

Haworth Fern

#6 · Frameless back, optional 4D arms and forward tilt

Haworth Zody

#7 · 4D arms, forward tilt, 16–21" seat

Haworth Soji

#8 · Optional 4D arms, lumbar and forward tilt

Herman Miller Embody

#9 · 3" of seat depth travel and fully adjustable arms

Steelcase Karman

#10 · Light suspension chair with 4D arms

Herman Miller Aeron (Size B)

#11 · The mesh benchmark, sized A/B/C

Herman Miller Sayl

#12 · 350 lb rating with optional height-adjustable lumbar

Herman Miller Cosm (Mid Back)

#13 · Auto-Harmonic tilt, no tension knob

Herman Miller Lino

#14 · Optional seat depth and fully adjustable arms

Branch Ergonomic Chair

#15 · 4" of seat depth travel for 5'2"–6'2"

Branch Verve Chair

#16 · Knit chair with height-adjustable lumbar

Sihoo Doro C300 Pro

#17 · Adds seat depth and 6D arms to the C300

Hbada E3 Ultra

#18 · 2.76" of seat depth travel

Hbada E3 Air

#19 · 330 lb mesh chair with 1.97" seat depth travel

Sihoo B300 Pro

#20 · 4D lumbar and 6D arms

Sihoo Doro S300

#21 · 6D arms with independent dynamic lumbar

Branch Ergonomic Chair Pro

#23 · 5D arms, forward tilt and two-way lumbar

#24 · Low-cost mesh chair with dual-adjustable lumbar