The Sihoo M57 is proof that a good office chair does not have to cost a fortune. After over two years of use, it stands out as a strong budget option that gets a lot right. It offers a well-rounded mix of comfort, support, and practicality.
It is not perfect, and there are a few trade-offs, but overall, there is far more to like than to complain about. Here's everything to know.
Sihoo M57: A Quick Overview
The Sihoo M57 is a budget ergonomic chair that delivers solid support, comfort, and function without feeling cheap.
After using it five to six days weeky, there were no major signs of wear, and the chair still felt more premium than its price suggests. Features like adjustable armrests, a breathable mesh backrest, and a tilt mechanism make it a practical option for long sitting hours.
It also feels well built. The metal frame supports up to 150 kg, the aluminium base is stable, and the casters roll smoothly and quietly. The only downside is that the plastic wheels are not ideal for carpet.
The M57 covers the key ergonomic adjustments you would expect, and the recline is one of its strongest features. The seat and back move together in a way that feels secure and comfortable when leaning back. Setup is also straightforward, with clear instructions that make assembly easy.
Net weight: 18.9 kg
Dimensions: 70 x 70 x 110 - 132 cm
Seat height: 45.5 to 55.5 cm
Recline angle: 110, 116, and 126 degrees
Armrest: 61 to 78 cm
Headrest: 45-degree rotation
Material: Aluminium, mesh
Weight capacity: 150 kg
Warranty: 3 years
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Best Bits of Sihoo M57
As a budget-friendly option, does Sihoo’s M57 have the features you are looking for in an office chair? Let’s discuss each of them one by one:
#1. Decent Build Quality
The Sihoo M57 is well built where it matters most. The aluminium base and nylon casters provide a stable, solid foundation, and the chrome gas lift works smoothly without making height adjustment a struggle.
Even the plastic parts feel better than you would expect at this price. They do not come across as cheap or flimsy. The mesh upholstery is another strong point. It is not overly soft, but it is breathable, comfortable, and durable enough for long-term use.
#2. Decent Adjustability
Regarding adjustments, the Sihoo M57 has the edge over most budget office chairs. Once you've experienced this level of flexibility, there's no going back.
Take the seat height, for instance; you can adjust it up to 10 cm, other points of adjustments include:
Tilt Mechanism
The multifunction tilt is a strong feature and a clear step up from a basic centre tilt. It lets you lock the chair into three recline angles; 110°, 120°, and 130°, depending on how you want to sit. 110° works well for upright sitting and easy standing, 120° is better for stretching, and 130° is ideal for relaxing. The same lever used for seat height also controls the recline settings.
Lumbar Support
I would usually choose adaptive lumbar support over bi-directional lumbar support, but this chair changed my mind. It took a bit of trial and error to get the rear adjustment knob right, but once I found the right setting, the lumbar support felt excellent. It matched the curve of my back well and gave proper lower-back support.
Adjustable Armrests and Headrest
The 3D armrests are not exceptionally flexible, but for this price, they do a good job. They offer four height settings across a 7 cm range, plus 7 cm of forward and backward movement and 36 degrees of side-to-side adjustment.
The headrest is another strong point, especially for a budget chair. It has five height adjustments with about 10 cm of range, and you can adjust it while seated, which is genuinely useful. It also rotates up to 45 degrees, giving you more control over neck and head support.
#3. Superior Comfort
The Sihoo M57 is very comfortable for the price. It supports long sitting sessions well without becoming tiring, especially when set up properly with your feet flat on the floor and your elbows level with the desk.
The high-density mesh seat gets the balance right. It is firm enough to keep you supported and stable, but not so hard that it becomes uncomfortable over time. The back support is also more structured than heavily contoured, which works well for people who prefer a firmer feel.
Another standout detail is the waterfall seat edge. It helps reduce pressure on the thighs and improves weight distribution, which makes long periods of sitting more comfortable and helps prevent numbness.
#4. Good Assembly
The Sihoo M57 arrives in compact, well-protected packaging. The parts are properly padded and wrapped, so nothing feels thrown in or poorly packed.
Assembly is straightforward. The manual is clear, and there is also a video guide on the brand’s website if you prefer to follow visually. It helps to lay out all the parts before starting, and the included toolkit is enough to get the job done.
Size is another plus. Unlike many chairs bought online, it does not feel awkwardly too small or too bulky. The M57 fits neatly into a home office setup without wasting space.
#5. Fair Warranty and Return Policy
The Sihoo M57 comes with a 3-year warranty and a 30-day return policy. That is decent, but it falls short of competitors that offer much longer warranty coverage.
The return policy is also fairly strict. To qualify for a refund, the chair must be in its original condition, unused or unassembled, with the original packaging and proof of purchase. Sihoo also requires the returned chair to be inspected before approving any refund.
What Could Be Improved?
There’s much to be admired about the Sihoo M57 for its price point. However, I found a few things to be less impressive about this chair. They include:
#1. Standard Aesthetics
The Sihoo M57 gets the job done ergonomically, but visually it is nothing special. The mesh pattern feels a bit dated and does not have the clean, refined look you might expect from a standout office chair.
The colour options also do not help much. Grey, black, and dark grey are all safe and dull choices. Lighter finishes like white or light grey would have made it more appealing and easier to fit into brighter workspaces.
#2. Lacks Seat Depth Adjustment
The Sihoo M57 misses a few adjustments that would have made it much better. The biggest one is seat depth adjustment. It worked fine for me, but shorter users may struggle to get proper back support, which can affect posture.
The 3D armrests are solid for the price, but they still feel limited. Extra width and pivot adjustment would have made them more versatile and improved support for different sitting positions.
#3. Castors Aren’t Carpet-Friendly
The castors are durable, but they are not ideal for carpet. On medium to thick pile carpets, they feel heavy and do not roll as smoothly as they should. The thin rubber strip does little to improve that.
They perform much better on hard floors. If you plan to use the chair on carpet, a chair mat is the practical fix.
Sihoo M57: Rating & Ranking
Here's how the Sihoo M57 compares to the other ergonomic chairs. For context, the ErgoTune Supreme ranked ahead of it with a 4.8-star rating.
| Category | Rating (5.0) |
|---|---|
| Ergonomics | 4.5 |
| Build Quality | 4.0 |
| Aesthetics | 4.0 |
| Ease of Assembly | 4.5 |
| Pricing | 5.0 |
| Return Policy | 5.0 |
| Warranty | 3.0 |
| Overall | 4.2 |
The Competition
Are the Sihoo M57's limitations giving you pause? Here are alternatives to consider. For a more in-depth look, check out my comprehensive guide on Australia's best ergonomic office chairs.
ErgoTune Supreme V3
ErgoTune Supreme and Sihoo M57 both have sturdy aluminium alloy frames and support up to 150 kg, but the ErgoTune clearly offers more.
It fixes some of the M57’s main limitations by adding both seat height and seat depth adjustment, which gives a better fit for more body types. It also comes with 5D armrests, so you get everything the M57 offers plus width and pivot adjustment.
Another advantage is ease of use. The recline tension control on the ErgoTune is easier to reach and adjust because the knob sits near the front edge of the seat.
Is the Sihoo M57 Good for Sitting All Day?
The Sihoo M57 is built to make long sitting sessions more comfortable. Its breathable mesh seat and back improve airflow and help reduce heat buildup, while the adjustable lumbar support, armrests, and headrest let you tailor the chair to your body and sitting style.
That said, no chair solves the problem of sitting still for too long. Even with good ergonomic support, long periods of uninterrupted sitting can still affect your health. The chair can improve comfort, but you should still take regular breaks, stretch, and move throughout the day. Avoid sitting continuously for hours without getting up.
Does the Sihoo M57 Mesh Wear Out?
The mesh on the Sihoo M57 is durable and holds up well under regular use. It resists tearing better than you might expect from a budget chair.
That said, like any mesh seat or backrest, it is not immune to wear over time. Constant pressure and movement can eventually cause some stretching or sagging, especially with heavy daily use. If that happens, comfort and ergonomic support will drop, and the affected part may need replacing.
Sihoo M57 vs M18
The Sihoo M57 and M18 are both ergonomic chairs from the same brand, but the M57 is the more capable option.
The M18 is cheaper, which makes it appealing if budget is the main concern. But the M57 gives you a stronger, more stable build and supports up to 150 kg, compared with the M18’s 105 kg limit.
The M57 also offers better armrest adjustment. The M18 only gives you height adjustment, while the M57 adds depth adjustment as well, which improves support and comfort over long sessions.
Darren Sherwood
Final Thoughts
At under $500 with a 3-year warranty, the Sihoo M57 offers strong value. Very few chairs in this price range give you this level of ergonomic support and adjustment.
It is not perfect, and some of its downsides will matter depending on your preferences. But overall, it performs far better than its price suggests. For comfort, support, and day-to-day use, it is a worthwhile buy.
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