C Office Chair
The core difference between the Sihoo C100 and C300 lies in their functional configurations and applicable scenarios. The C100 is suitable for users with limited budgets or light usage, while the C300 is aimed at users who sit for long periods or seek high-quality experiences. Here is a detailed comparative analysis:

1. Positioning and Target Users
The C100 is positioned as a cost-effective option in the thousand-yuan range, primarily targeting light users, female users, or those new to ergonomic chairs. Its functional design balances basic support and comfort, making it suitable for students, young white-collar workers working from home, and other users with limited budgets or low usage frequency. The C300, on the other hand, is a fully upgraded model optimized for office workers, gamers, or scenarios requiring prolonged sitting. It meets high-intensity usage demands through more complex adjustment functions and material upgrades.
2. Core Functional Differences
- Lumbar Support System: Both models adopt Domino 3D lumbar support technology, but the C300 is additionally equipped with a flexible back-following frame that more precisely fits body curves and dynamically adapts to different sitting postures, offering more significant spinal protection.
- Armrest Adjustment: The C100's 4D linked armrests support up-down, front-back, and angular rotation adjustments, meeting basic work scenario needs. The C300 is upgraded to six-dimensional bionic joint armrests with richer adjustment dimensions, suitable for complex operations such as gaming and drawing.
- Recline Angle: The C100 offers a large 145ยฐ recline angle, suitable for short-term relaxation. The C300 supports a wider adjustment range of 120-155ยฐ and optimizes comfort for lunch break scenarios.
- Chassis and Materials: The C300 uses an aluminum alloy chair base, offering better stability and load-bearing capacity than the C100's ordinary materials. It also features one-touch operation for simplified adjustment processes.
3. Scenario Adaptability
The C100's functional design focuses more on light scenarios such as daily office work, online class learning, or occasional TV watching. Its Smart gravity-sensing chassis automatically adjusts the backrest force according to body weight, lowering the usage threshold. The C300 covers high-intensity scenarios such as prolonged work and gaming through upgraded configurations. For example, its six-dimensional armrests reduce arm fatigue, and the aluminum alloy chair base ensures stability during long sitting periods.
4. Selection Recommendations
- Choose C100: If you have a limited budget, low usage frequency, or need to balance cost-effectiveness with basic functions (e.g., students, home office workers).
- Choose C300: If you require complex adjustment functions, prolonged usage, or pursue higher comfort and stability (e.g., office workers, gamers).
Both models provide lumbar support through Domino technology, but the C300 excels in materials, adjustment dimensions, and scenario adaptability, making it suitable for users with higher experience demands.



