SIHOO Doro C300 Pro V2 vs SIHOO Doro C300 Pro: Which Should You Buy?

Key difference: The C300 Pro V2 is the newer model and lists $290 lower, but the C300 Pro keeps automatic lumbar support.

Every figure for the C300 Pro V2 and C300 Pro comes from SIHOO's own US, UK and EU stores, and prices are regular US list prices rather than sale prices; Chairpedia has not tested either chair.

Why compare them

Why put the SIHOO Doro C300 Pro V2 next to the SIHOO Doro C300 Pro? The V2 is SIHOO's later revision of the Doro C300 Pro and is sold alongside the original, so the real question is what the revision changed and whether the original still earns its higher list price.

Specs side by side

Strengths and weaknesses

SIHOO Doro C300 Pro V2

Strengths

• Lower list price: from $499.99 against $789.99 for the C300 Pro.
• 8D armrests, against 6D armrests on the C300 Pro.
• Lumbar you set by hand ("Domino Sacral-Lumbar Support 2.0: moves up or down, 3 support levels"), where the C300 Pro's works on its own.

Weaknesses

• Lumbar is set by hand ("Domino Sacral-Lumbar Support 2.0: moves up or down, 3 support levels"), while the C300 Pro's moves on its own.

SIHOO Doro C300 Pro

Strengths

• Automatic lumbar support ("Lumbar support automatically conforms to your spine (BM Tracking System)"), where the C300 Pro V2's is set by hand.

Weaknesses

• Costs more: from $789.99 against $499.99 for the C300 Pro V2.
• 6D armrests, against 8D on the C300 Pro V2.
• No manual lumbar setting is listed for the C300 Pro, unlike the C300 Pro V2.

How they differ

Price. At regular US list prices the SIHOO Doro C300 Pro V2 is $499.99–$549.99 and the SIHOO Doro C300 Pro is $789.99–$839.99. The C300 Pro V2 lists $290 below the C300 Pro, before any store sale.

Lumbar support. The SIHOO Doro C300 Pro V2 lists “Domino Sacral-Lumbar Support 2.0: moves up or down, 3 support levels”, the SIHOO Doro C300 Pro “Lumbar support automatically conforms to your spine (BM Tracking System)”. The C300 Pro's lumbar moves on its own as you shift, while the C300 Pro V2's is positioned by hand.

Armrests. The SIHOO Doro C300 Pro V2 lists “8D Bionic Armrests (up, down, forward, back, rotate, or tilt)”, 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 8D armrests the C300 Pro V2 lets you set the pads in more ways than the C300 Pro.

Seat size. Seat height: the SIHOO Doro C300 Pro V2 lists nothing, the SIHOO Doro C300 Pro “18.11–22.32 in (46–56.7 cm)”. Seat width: the SIHOO Doro C300 Pro V2 lists “20.5 in (≈52 cm)”, the SIHOO Doro C300 Pro “20.28 in (≈51.5 cm)”. Seat depth: the SIHOO Doro C300 Pro V2 lists “16.9–18.5 in (≈43–47 cm)”, the SIHOO Doro C300 Pro “16.81–17.76 in (≈42.7–45.1 cm)”.

Other details. Headrest: the SIHOO Doro C300 Pro V2 lists “Ultra-wide 3D headrest, adjusts in three directions”, the SIHOO Doro C300 Pro “Headrest adjusts up and down, back and forth, or rotates”. Recline: the SIHOO Doro C300 Pro V2 lists “Up to 135°; positions at 105°, 120° and 135°”, the SIHOO Doro C300 Pro “Up to 135°”. Chair weight: the SIHOO Doro C300 Pro V2 lists “59.64 lb (≈27.1 kg)”, the SIHOO Doro C300 Pro “55.34 lb (≈25.1 kg)”.

Same on both. The C300 Pro V2 and C300 Pro list the same warranty (3 years), maximum load (330 lb, ≈150 kg) and Footrest Version option.

Who should buy which

• Pick the C300 Pro V2 over the C300 Pro if you want the lower price — the C300 Pro V2 lists $290 below the C300 Pro.
• Pick the C300 Pro V2 over the C300 Pro if you want 8D armrests rather than 6D.
• Pick the C300 Pro V2 over the C300 Pro if you want a lumbar position you set yourself and that stays put.
• Pick the C300 Pro over the C300 Pro V2 if you want lumbar support that adjusts itself as you move, with nothing to set.
• Pick the C300 Pro over the C300 Pro V2 if you want a lighter chair to move around: 55.34 lb (≈25.1 kg) against 59.64 lb (≈27.1 kg).

Not published by the brand (C300 Pro V2 vs C300 Pro): seat height for the SIHOO Doro C300 Pro V2.

Sources

• SIHOO Doro C300 Pro V2 (compared here with the C300 Pro): Sihoo Doro C300 Pro V2 Ergonomic Office Chair – 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 C300 Pro V2): 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 C300 Pro V2 and C300 Pro are Chairpedia's unit conversions, not brand figures.