Review of Office Chairs in the 300-400 Yuan Price Range

Among office chairs in the 300-400 yuan price range, models such as Sihoo M76-001, Gedeli YH13, JD.COM Z5 Soft, Yongyi M60 Pro, Sihoo M56, and Hebiao P1 stand out and can be selected based on specific needs.

1. Sihoo M76-001: A Representative of Cost-Effectiveness and Functional Balance
This model focuses on ergonomic design, with a C-shaped backrest that fits the curve of the waist and back, combined with an adjustable lumbar pillow to accommodate the lumbar support needs of users of different heights. The seat cushion uses high-density foam + double-sided breathable holes, balancing comfort and breathability, making it less prone to stuffiness during prolonged sitting. The armrests support 90° flipping for easy storage; the 8cm pneumatic lift + 360° rotation function allows flexible adjustment of height and angle. The chassis is equipped with a 20° gentle rocking recline, suitable for short breaks. The PU silent wheels produce low noise during movement, suitable for hard floors.

2. Gedeli YH13: An Entry-Level Model with Rich Adjustment Functions
Its advantage lies in multi-dimensional adjustment: the headrest can be raised, lowered, and rotated, the backrest supports height adjustment, and the lumbar support features an elastic self-adaptive design that dynamically fits the waist. In terms of materials, the chassis uses a thickened steel structure, providing higher safety; the seat cushion is made of molded foam + breathable mesh fabric, with moderate softness and hardness. However, some users report that the recline angle is relatively small (about 15°), suitable for mild recline needs.

3. JD.COM Z5 Soft: A Choice with Solid Material Usage
This model highlights soft upholstery materials, with the headrest, backrest, and seat cushion all covered with thickened foam, providing a soft touch and suitable for users who prefer a soft seat feel. The backrest adopts an S-shaped bionic curve, and the lumbar support is a fixed design, providing stable support. The chassis features a three-stage pneumatic rod, ensuring safe load-bearing; the armrests support up and down adjustment, but cannot rotate or flip.

4. Yongyi M60 Pro and Sihoo M56: Supplementary Options with Functional Differentiation
The split backrest design of Yongyi M60 Pro allows independent adjustment of the upper and lower parts, accommodating different body types; the widened seat cushion (about 50cm) of Sihoo M56 is more friendly to users with a larger build, but both are slightly inferior to the previous models in terms of lumbar support or material breathability.

Purchase Recommendations:

• For those pursuing waist and back support and flexibility, prioritize Sihoo M76-001;
• For those needing multi-dimensional adjustment, Gedeli YH13 is more suitable;
• For those preferring a soft seat feel, JD.COM Z5 Soft is the preferred choice;
• For those with a larger build or needing a wide seat cushion, consider Sihoo M56.

(Note: Specific performance differences should refer to the original review data, such as details on lumbar support pressure distribution and recline angles.)