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Sihoo Doro S-Series vs. C-Series: Which office chair is right for you?

20/05/2025 | SIHOOOffice

Anyone who sits a lot needs an ergonomically designed office chair that truly supports the back – otherwise, tension and pain will quickly set in. SIHOO offers various models in its Doro S and C series. We'll explain the differences between the S100, S300, C300, and C300 Pro so you can find the chair that suits your daily routine.

Overview of the Doro S-Series

The Doro S-Series stands for ergonomic seating with a modern design and practical features. It is aimed at users who place great value on comfort and flexible adjustment options. All models are SGS and BIFMA certified and comply with the German standard DIN EN 1335 – an important quality feature for everyday office use.

Sihoo Doro S100 – The solid entry point

The S100 is ideal for anyone looking for a good, ergonomic chair without breaking the bank. The dual-dynamic lumbar support adapts well to your movements, and the 4D armrests offer a wide range of adjustments. The breathable mesh ensures a comfortable seating experience, even on long days. Furthermore, SIHOO uses recyclable materials and environmentally friendly packaging for this model.

Key features:

  • Dual-dynamic lumbar support for good support
  • 4D armrests for flexible adjustment
  • Breathable mesh cover
  • Synchronous mechanism with backrest tilt up to 135°
  • SGS and BIFMA certified, compliant with DIN EN 1335
  • Environmentally friendly materials and packaging

Doro S100

€279.99
The Sihoo Doro S100 understands that true comfort lies in the details. Its unique, two-part, and dynamically acting lumbar support system provides back support that feels tailor-made. It's your personal partner for a healthy and relieved back.

Sihoo Doro S300 – Comfort for discerning customers

The S300 is the premium model of the S-Series. Its innovative tilt mechanism with elastic plates, inspired by aerospace engineering, ensures exceptionally comfortable reclining. The lumbar support adjusts automatically, and the 6D armrests move synchronously with the backrest. The chair received the German Design Award 2023 and meets the highest quality standards.

Key features:

  • Innovative tilting mechanism for even pressure distribution
  • Automatically adaptive lumbar support with four-spring system
  • 6D armrests that move with the backrest
  • High-quality, breathable mesh
  • Certified according to SGS, BIFMA and DIN EN 1335
  • German Design Award 2023 Winner
  • Sustainable materials and production

Doro S300

€799.99
The Sihoo Doro S300 represents the highest ergonomic quality. Its innovative anti-gravity mechanism and other advanced features ensure a unique seating experience that feels almost like weightlessness.

Overview of the Doro C-Series

The Doro C-series relies on proven ergonomics and robust construction. It is particularly suitable for traditional office environments or home offices when you are looking for a reliable chair with essential features. All models are SGS and BIFMA certified.

Sihoo Doro C300 – Solid ergonomics at a fair price

The C300 features manually adjustable lumbar support and 4D armrests for optimal adaptation to your seating position. The mesh upholstery ensures breathability and comfort. The chair is robustly constructed and well-suited for frequent users, such as in offices or co-working spaces.

Key features:

  • Manually adjustable lumbar support
  • 4D armrests for individual adjustment
  • Ergonomically shaped backrest and seat with mesh
  • Synchronous mechanism with locking mechanism
  • SGS, BIFMA and DIN EN 1335 certification
  • Durable, recyclable materials

Doro C300

€279.99
The Sihoo Doro C300 offers continuous, advanced comfort and optimal support – with individually adjustable lumbar support, a flexible backrest, and 4D-coordinated armrests. This ensures lasting comfort and increased productivity at work.

Sihoo Doro C300 Pro – More comfort and technology

The C300 Pro is an evolution of the C300 and features self-adaptive lumbar support with BM tracking, which optimizes pressure distribution. The 6D armrests and 3D adjustable headrest provide even greater comfort and individual adjustment options – ideal for long workdays.

Key features:

  • Self-adaptive lumbar support with BM tracking
  • 6D armrests adapt to movements
  • 3D adjustable headrest
  • High-quality frame, SGS certified
  • Certified according to SGS, BIFMA and DIN EN 1335
  • Environmentally friendly materials

Doro C300 Pro

€279.99
The Sihoo Doro C300 Pro is the ergonomic chair for a new level of comfort. An evolution of the popular model, it offers advanced support and adapts perfectly to users of all body sizes.

Key ergonomic features compared

feature

Doro S100

Doro S300

Doro C300

Doro C300 Pro

Price (RRP)

approx. €280

approx. €640

approx. €280

approx. €560

lumbar support

Dual-dynamic

Automatic, 4 springs

Manually adjustable

Self-adaptive, BM tracking

armrests

4D

6D, synchron

4D

6D, synchron

mechanics

Synchronous, up to 135°

Innovative tilting mechanism

Synchronous, lockable

Synchronous, permanent contact

headrest

Optional, 3D adjustable

3D adjustable

Integrated, 2D adjustable

3D adjustable

Seating material

Breathable mesh

High-performance mesh

Breathable mesh

Breathable mesh

Resilience

Up to 150 kg

Up to 150 kg

Up to 150 kg

Up to 150 kg

Certifications

SGS, BIFMA, DIN EN 1335

SGS, BIFMA, DIN EN 1335, German Design Award

SGS, BIFMA, DIN EN 1335

SGS, BIFMA, DIN EN 1335

sustainability

Recyclable materials

Recyclable materials

Recyclable materials

Recyclable materials

Who are these models suitable for?

  • Doro S100: For anyone looking for a good, affordable chair for their home office or office who doesn't sit for hours every day.
  • Doro S300: For frequent users and executives who value comfort and innovative technology.
  • Doro C300: For offices, co-working spaces or home offices when a robust and functional chair is required.
  • Doro C300 Pro: For everyone who sits for long periods and values ​​maximum adjustability and ergonomic support.

What do users say?

Many customers praise the excellent workmanship and superior seating comfort of SIHOO Doro chairs. The S300, in particular, is appreciated for its comfortable feel and innovative mechanism. The C300 Pro scores points with its flexible adjustment options and easy assembly. The durability of the materials is also frequently highlighted.

Conclusion

Whether you're looking for a solid, affordable entry-level chair (S100, C300) or prefer a model with more comfort and technology (C300 Pro, S300) – Sihoo offers the right office chair for every need. Ergonomics, quality, and sustainability are the focus of all models, ensuring you can work healthily and productively.

Discover the SIHOO Doro S and C series now – for your perfect workplace!

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