Sihoo M57 vs M18: My Honest Comfort Review

Last Updated on October 7, 2025 by Cassie Moorhead

If you’re torn between the SIHOO M57 vs M18, I’ve tested both so you don’t have to. The M57 feels sturdier with stronger lumbar support, while the M18 shines with comfort and a lighter frame. From my experience, both serve well for long desk hours, but the right pick depends on your sitting habits and budget. In short, here’s what you need to know before you decide which one fits your workspace best.

SIHOO M57 Ergonomic Office Chair Review

The SIHOO M57 is a solid ergonomic chair for work or gaming. It gives great comfort, looks modern, and feels strong. I’ve used it for months and noticed how it helps my back stay straight during long hours. The mesh seat keeps me cool, and the metal frame adds a touch of quality. If you want a chair that looks good, lasts long, and feels right, the M57 is a smart pick for your home office.

To buy this product, Click here.

What I Like

• Solid Build Quality:
  The SIHOO M57 feels tough. The mix of metal and thick plastic gives it a high-end feel. Every part fits well and feels stable.
• Ergonomic Comfort:
  The lumbar support helps my lower back stay relaxed. I can adjust the headrest and seat height easily. It fits my body, not the other way around.
• Cool Mesh Design:
  The mesh back and seat let air pass through. This is perfect for long hours, especially in warm places like many U.S. home offices.
• Quiet Movements:
  The tilt and recline feel smooth. There’s no squeak or creak when I move. It gives a nice, clean experience.
• Great Value:
  With BIFMA and SGS certification, it meets safety and quality standards. It feels like a premium chair but at a mid-range price.

What Could Be Better

• Armrest Padding:
  The armrests are firm. After long use, my elbows feel sore. A bit of soft foam would help a lot.
• Headrest Adjustment:
  The headrest is tricky. I keep moving it to find the right spot. It could use a wider range of motion.
• Recline Angle:
  The chair leans back, but not as much as I’d like. A deeper recline would make it great for short breaks.

Is the SIHOO M57 Good?

Yes. The SIHOO M57 is a very good chair for work or study. I sit on it for writing, editing, and gaming, and my back never feels tired. The ergonomic design supports natural posture. The lumbar support and mesh seat keep me comfortable all day.

For U.S. users working from home, this chair fits both modern style and daily comfort needs. It’s not a Herman Miller, but it gives great value for the price.

SIHOO M57 Overview

Feature	Details
Brand	SIHOO
Model	M57 Ergonomic Office Chair
Design Type	Mesh ergonomic chair with adjustable headrest and lumbar support
Material	Metal frame, high-grade plastic, and breathable mesh
Adjustability	Height, tilt, recline, headrest, and lumbar tension
Reclining Mechanism	Smooth tilt up to around 125°
Certifications	BIFMA and SGS certified
Weight Capacity	330 lbs
Warranty	3 years
Assembly	Easy to set up at home
Best For	Office workers, gamers, and remote setups
Available In	USA via Amazon and local sellers

Recommendation

If you work long hours or play games often, the SIHOO M57 is a good match. It fits most body types, feels cool to sit on, and keeps your posture in line.

• Great for: Home offices, content creators, and gamers who want comfort and durability.
• Maybe skip if: You want a very soft seat or a deep recline for naps.

I’d pick this chair again because it gives me everything I need — steady support, good air flow, and solid quality. For its price, it’s one of the most practical ergonomic chairs you can buy.

To buy this product, Click here.

SIHOO M18 Ergonomic Office Chair Review

The SIHOO M18 ergonomic office chair makes long desk hours much easier. I’ve been using it daily for work, editing, and gaming. It feels strong, cool, and supportive all day long. For anyone who works from home or sits for long hours, this chair helps your back and keeps you comfortable.

To buy this product, Click here.

What I Like

• Comfortable Ergonomic Design:
  The curved backrest fits my spine well. It keeps me sitting straight without that sore mid-back feeling.
• Breathable Mesh Back:
  The mesh fabric keeps air flowing, even during long work sessions. I stay cool — great for warm U.S. afternoons when the AC isn’t enough.
• Adjustable Headrest and Lumbar Support:
  The headrest moves up and down and tilts a bit forward. The lumbar knob lets me adjust lower back pressure until it feels right.
• W-Shaped Seat Cushion:
  The seat supports my hips evenly. It’s firm but soft enough to sit on all day without pain.
• Simple to Assemble:
  I set it up in about 20 minutes. The frame feels solid and the base rolls smoothly.
• Good Value:
  For under $250, it feels premium. It supports up to 330 lbs, making it ideal for big and tall users too.

What Could Be Better

• Armrest Range:
  The armrests only move up and down. I wish they could pivot or slide sideways for more comfort.
• Limited Recline:
  The recline goes from 110° to 126° — good but not deep enough if you like to lean far back.
• Backrest Height:
  It might feel short for users over 6 feet tall. A taller version would give better upper-back support.

Is the SIHOO M18 Good?

Yes — the SIHOO M18 is a great choice for long workdays. I’ve used it for writing, gaming, and editing videos. The lumbar support keeps my spine straight, and the mesh backrest helps with airflow.

For home offices in the U.S., it’s perfect for anyone who wants comfort without spending a fortune. It’s not as fancy as a Herman Miller, but it gives real ergonomic support at a fraction of the price.

SIHOO M18 Overview

Feature	Details
Brand	SIHOO
Model	M18 Ergonomic Office Chair
Type	Mesh ergonomic chair
Seat Cushion	W-shaped foam seat
Headrest	Adjustable height and tilt
Lumbar Support	Dual adjustable design
Armrests	Height adjustable
Tilt Mechanism	Recline 110°–126°, tension control
Material	Breathable mesh and strong plastic
Base	Metal frame with smooth casters
Weight Capacity	330 lbs
Certifications	BIFMA & SGS approved
Warranty	3 years
Assembly Time	About 20–25 minutes
Best For	Work-from-home, office, or gaming setups
Available In	USA (Amazon & official store)

Recommendation

If you work, study, or play games for hours, the SIHOO M18 is worth it.

• Great for: Home office users who need real back support.
• Good for: Gamers who sit for long sessions.
• Best for: Larger users who need strong build quality.

If you prefer a deeper recline or plush armrests, you might want to check out higher-end models like the SIHOO Doro C300.

Still, for under $250, the M18 gives you everything that matters — comfort, adjustability, and lasting build. It’s a smart buy for anyone who values posture and support in daily life.

To buy this product, Click here.

Details Comparison – SIHOO M57 vs M18

I’ve used both the SIHOO M57 and SIHOO M18 chairs for months in my home office. Both are great ergonomic chairs, but they serve slightly different needs. Today, I’ll share my honest thoughts — what I liked, what I didn’t, and how they compare in real daily use.

Let’s break it down feature by feature in a simple, real-world way.

Build Quality: sihoo m57 vs m18

Feature	SIHOO M57	SIHOO M18
Frame Material	Reinforced aluminum frame	High-strength plastic frame
Seat Cushion	Thicker, denser foam	Medium-density foam
Mesh Quality	Tighter and firmer mesh	Softer, more breathable mesh
Base Strength	Heavy-duty metal base	Sturdy nylon base

The M57 feels more premium in hand. Its aluminum frame gives better stability, while the M18 is lighter and easier to move. I noticed that the M18 flexes a bit more when I lean back hard.

My Take: If you want stronger build and a premium feel, the M57 wins. For portability and light comfort, M18 is enough.
Rating: M57 – 9/10 | M18 – 8/10

Ergonomic Design: sihoo m57 vs m18

Feature	SIHOO M57	SIHOO M18
Lumbar Support	Dynamic adjustable support	Dual manual adjustment
Headrest	Wider and more stable	Compact and flexible
Seat Depth	Slightly deeper	Standard seat depth
Recline Range	90°–126°	110°–126°

When I sit in the M57, I feel the lumbar support move naturally with my back. The M18, on the other hand, needs manual adjustment to hit the right spot.

My Experience: The M57 supports better during long work hours, while the M18 still feels great for casual users.
Rating: M57 – 9.5/10 | M18 – 8.5/10

Adjustability & Controls: sihoo m57 vs m18

Feature	SIHOO M57	SIHOO M18
Armrests	3D adjustable	1D adjustable (up/down only)
Headrest Angle	Adjustable	Adjustable
Seat Height Range	18–21 inches	17.7–21 inches
Tilt Lock & Tension	Multi-lock	Single lock

The M57 gives more flexibility — especially the 3D armrests. That helps when typing, gaming, or switching posture. The M18 is simpler but still works well for most desk tasks.

My Insight: If you switch between typing, gaming, and relaxing, the M57 feels more “custom-fit.”
Rating: M57 – 9/10 | M18 – 7.5/10

Comfort & Support: sihoo m57 vs m18

Feature	SIHOO M57	SIHOO M18
Seat Cushion Feel	Firm, dense support	Softer, more forgiving
Backrest Pressure	Balanced with motion support	Static lumbar support
Headrest Feel	Broad and supportive	Slim and flexible

After long work hours, I noticed my lower back felt fresher with the M57. The M18 is softer but doesn’t mold to your posture as well.

My Feel: M57 is for serious desk workers. M18 suits light use or short hours.
Rating: M57 – 9/10 | M18 – 8/10

Performance: sihoo m57 vs m18

Category	M57	M18
Work Productivity	High stability, less fatigue	Good for casual use
Posture Support	Excellent spinal alignment	Decent back support
Breathability	Slightly firm but cool mesh	Softer and more airy

My Experience: The M57 helps me stay focused longer because it supports posture better. The M18 still performs well for shorter sessions.
Rating: M57 – 9.2/10 | M18 – 8.4/10

Ease of Use: sihoo m57 vs m18

Aspect	M57	M18
Assembly Time	About 25 minutes	About 20 minutes
Control Simplicity	More levers and knobs	Simple single controls
Mobility	Slightly heavier	Very easy to roll
Maintenance	Wipes clean easily	Same, easy upkeep

My Experience: Both were simple to set up. The M18 is easier for first-time users, but I liked the M57 once I got used to its controls.
Rating: M57 – 8.5/10 | M18 – 9/10

Value for Money: sihoo m57 vs m18

Feature	M57	M18
Price Range (U.S.)	Around $290–$320	Around $230–$250
Features for Price	Excellent	Great for budget users
Durability Over Time	High	Medium-high

My View: The M57 gives more value if you need advanced ergonomics. The M18 is a better deal for tight budgets.
Rating: M57 – 9/10 | M18 – 9/10

Overall: sihoo m57 vs m18

Criteria	M57	M18
Performance	9.2/10	8.4/10
Ease of Use	8.5/10	9/10
Value for Money	9/10	9/10
Overall Score	⭐ 9/10	⭐ 8.5/10

Final Thoughts:
If you spend long hours at your desk — working, gaming, or editing — the SIHOO M57 is the better long-term investment. It’s more ergonomic, stable, and refined.
But if you want comfort on a budget with easy setup, the SIHOO M18 is still an excellent pick.

Both are great, but for me, the M57 wins by a small but clear margin.

FAQs for sihoo m57 vs m18

Which chair is better, the SIHOO M57 or M18?

The SIHOO M57 offers better lumbar support and build quality, while the M18 is lighter and more affordable. If you sit long hours, the M57 is the smarter pick.

Is the SIHOO M18 good for long work sessions?

Yes, the SIHOO M18 is great for daily office work. It’s comfortable and breathable, but the lumbar support is basic. It suits moderate use better than all-day sitting.

Does the SIHOO M57 have adjustable armrests?

Yes, the SIHOO M57 has 3D armrests that move up, down, and sideways. They give more freedom than the M18’s simple height-only armrests.

Which chair offers better value for money, the SIHOO M57 or M18?

Both are good value. The M18 wins on price, while the M57 gives more features for long-term comfort. Your choice depends on your budget and use.

Is the SIHOO M57 or M18 better for tall users?

The M57 is better for tall users. Its higher backrest and wider seat give more upper-body support, while the M18 suits average-height users best.