When you spend long hours at your desk, the right ergonomic chair isn’t just a nice-to-have — it’s essential for your health, posture, and productivity. At Sihoo, we understand that no two users are the same. That’s why we offer multiple ergonomic solutions, including the Doro C300 and the Doro S100 — both built to meet the demands of European professionals and fully compliant with EU ergonomic standards.
But which one suits your workspace and workstyle better? Let’s break it down.
At a Glance: Quick Comparison
Feature |
Sihoo Doro C300 |
Sihoo Doro S100 |
Lumbar Support |
Self-adaptive dynamic system |
Dual-zone dynamic lumbar support |
Armrests |
4D adjustable (height, depth, width, pivot) |
4D adjustable (height, depth, width, pivot) |
Backrest |
Floating, flexible mesh |
Structured dual-panel mesh |
Tilt Mechanism |
Synchronous tilt with recline lock |
Synchronous tilt with lumbar engagement |
Seat Depth |
Adjustable (approx. 43.5–46 cm) |
Adjustable (approx. 38.5–43.5 cm) |
Weight Capacity |
Up to 136 kg (300 lbs) |
Up to 136 kg (300 lbs) |
Warranty |
3 years |
3 years |
Certifications |
EN 1335, BIFMA, SGS compliant |
EN 1335, BIFMA, SGS compliant |
Lumbar Support
Both chairs feature intelligent lumbar systems that adjust to your movements — but in different ways:
- Doro C300 offers a self-adaptive lumbar system that synchronizes with your spine as you move. It’s ideal if you shift posture frequently throughout the day and want subtle, continuous support without manual adjustments.
- Doro S100 includes a dual-zone lumbar design that provides separate upper and lower back support. This makes it a great fit if you sit for extended periods and prefer a firmer, more structured feel.
Both models are designed to reduce the risk of musculoskeletal disorders (MSDs) and comply with EN 1335 ergonomic standards widely adopted in Europe.
Ergonomic Adjustability
Whether you’re switching between video calls, focused work, or casual reading, both the C300 and S100 adapt to you. Each chair features:
- 4D armrests — customizable in height, depth, width, and angle
- Synchronous tilt with recline lock — lean back naturally while staying supported
- Breathable mesh backrest — stays cool even during long sessions
- Pneumatic seat height and depth adjustment — to suit various body types and desk setups
The C300 feels lighter and more agile — perfect for creative environments or hybrid work setups where movement matters.
The S100 offers a steadier, more grounded experience — ideal for traditional offices and long sitting sessions.
Design & Build
- C300 is sleek and minimalist, with a floating back design that looks right at home in modern workspaces.
- S100 has a dual-panel backrest that not only adds extra lumbar support but also creates a classic, professional aesthetic.
Both models are made with eco-conscious materials and pass BIFMA, SGS, and EN 1335 certification standards — ensuring safety, durability, and sustainability.
Standards You Can Trust
Both chairs comply with the EN 1335 European ergonomic standard, and support EU health directives like Directive 89/391/EEC, which focuses on reducing workplace-related strain and injury risks.
Whether you work in Germany, France, the Netherlands, or any EU country, the C300 and S100 meet the requirements for adjustability, comfort, and safety at work.
Which Chair Should You Choose?
Your Workstyle or Priority |
Best Fit |
You move frequently or switch postures often |
Doro C300 |
You sit for long hours with little movement |
Doro S100 |
You prefer a clean, modern aesthetic |
Doro C300 |
You need firm, structured lower back support |
Doro S100 |
You want full compliance with EU standards |
Both models |
Final Thoughts
Both the Doro C300 and Doro S100 are thoughtfully engineered to enhance your comfort, protect your spine, and support productive work — all while meeting the strict ergonomic expectations of European workplaces.
- Choose the C300 if you value freedom of movement and modern design.
- Choose the S100 if you prefer stable, all-day lumbar support and classic structure.
Still not sure which model fits you best?Explore detailed specifications and verified customer reviews on our product pages to make your decision with confidence.
FAQs
Which chair is better for long sitting hours?
The Doro S100 offers more structured lumbar support for long-term seated work.
Are both chairs EN 1335 certified?
Yes, both Doro C300 and S100 meet EN 1335 European ergonomic standards.
What’s the main difference between C300 and S100?
C300 is more dynamic and flexible; S100 is more structured and stable.