SIHOO M57 Ergonomic Office Chair with 3D Armrests

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Product guide

SIHOO M57 Ergonomic Office Chair with 3D Armrests

The SIHOO M57 is an ergonomic office chair with 3D adjustable armrests, lumbar support and a mesh back and seat. Its tilt and seat-height adjustments give desk users several ways to alter their position, while customer feedback reports both comfort and adjustability as strengths and some concerns about ergonomics and the hydraulic mechanism.

At a glance

Armrests adjust in height, move forwards and backwards, and rotate, according to the listing.
The listing describes an S-shaped backrest, adjustable headrest and lumbar support.
Tilt is listed at 110°-116°-126°, with an 8cm height adjustment range.
Mesh seat and backrest are presented as breathable materials.

Price

€189.99Save 24%

Reference price: ~~€249.99~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Multiple armrest adjustments allow the position of hand support to be changed.
Lumbar support, headrest, tilt and seat-height adjustment offer several ways to tailor a seated position.
Customer feedback reports positive experiences with comfort, assembly and adjustability.

Cons

Customer feedback includes reports of hydraulic mechanism failures after one year, so long-term mechanism reliability is a consideration.

Technical specifications

18 specifications

Identity
Brand	SIHOO
Model	M57

Dimensions and installation
Form factor	Office Chair
Dimensions listed	69.9 x 69.9 x 105.9 centimetres
Weight listed	16.5 Kilograms
Assembly	Requires assembly

Materials and finish
Material listed	Polypropylene
Seat material	Polyester
Backrest and seat fabric	Mesh
Colour	black

Adjustments and support
Armrests	3D adjustable
Tilt range	110°-116°-126°
Height adjustment range	8cm
Lumbar support	Adjustable
Back style	Open Back
Movement	Swivel

Capacity and care
Maximum weight recommendation	330 Pounds
Care instructions	Wipe Clean

What to know before buying

Listing details to confirm

The listing gives a separate overall size of 43D x 61W x 110H centimetres, a seat height of 21 Inches and a back interior height of 123 Centimeters alongside other dimension claims. These measurements are inconsistent or unclear, so confirm the relevant chair and seat dimensions before purchase. The listing also claims a 150 kg capacity in its title and feature text, while the separate maximum weight recommendation is 330 Pounds. Its model name is M57 but its model number is B100-LITE-JP-4. These discrepancies do not establish a product defect.

What’s in the box

Included

Cushion

Who is it for?

A good fit for

Desk users seeking adjustable arm support, lumbar support and a headrest.
Buyers who prefer a mesh back and seat and want a chair with tilt and height adjustment.

Less suited to

Buyers who need fully consistent published measurements or a clearly confirmed capacity stated in a single unit.
Buyers prioritising assured long-term hydraulic reliability, given reports of mechanism problems in customer feedback.

SIHOO M57 Ergonomic Office Chair with 3D Armrests · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 4,748 ratings

5 stars65%65%
4 stars18%18%
3 stars8%8%
2 stars3%3%
1 star6%6%

Customer feedback reports positive experiences with quality, comfort, value, ease of assembly and adjustability. Lumbar support is appreciated, but ergonomic feedback is mixed, including a concern about uneven weight distribution. Some customers also report hydraulic mechanism failures after one year. These reports matter if the chair is intended for regular desk use, where sustained support and mechanism reliability are relevant. They describe customer experiences, not verified performance findings.

Positive themes

Customer feedback reports comfort and easy assembly.
Feedback describes the lumbar support and adjustability positively.

Negative themes

Some customers report hydraulic mechanism failures after one year.

Mixed feedback

Ergonomics receive mixed feedback, including a reported issue with uneven weight distribution.
Functionality feedback is mixed.

Frequently asked questions

What adjustments does the SIHOO M57 list?

The listing describes height-adjustable armrests that also move forwards and backwards and rotate, plus an 8cm seat-height adjustment range and tilt positions of 110°-116°-126°.

What materials are listed?

Polypropylene is listed as the material, while the seat material is given as polyester and the seat and backrest are described as mesh.

Does the chair require assembly?

Yes. The listing says assembly is required.

What should I check about the dimensions and weight limit?

The listing contains inconsistent dimensions and gives capacity as both 150 kg and 330 Pounds. Confirm the measurements and applicable capacity for the specific listing before buying.