Sihoo M59AS vs M57: My Honest Comfort Test
- Md Lemon Mia
- Oct 11, 2025
- 7 min read
Looking at the Sihoo M59AS vs M57, both are ergonomic mesh chairs made for daily work. I’ve tried them, and each has its own feel. The M59AS gives stronger lumbar support and feels solid. The M57 is lighter, easy to move, and more budget-friendly. From my years of testing chairs, I know small things—like a headrest tilt or cushion shape—can change comfort in a big way. Let’s see which one is right for you.
Is the Sihoo M59AS Good?
Yes, both chairs are good. I tested them side by side, and here’s what I found. The SIHOO M59AS feels like the smarter pick if you want more comfort and back support. The M57 is simple, steady, and works well if you want a clean mesh office chair.
The M59AS has Adaptive Dynamic Lumbar Support. It moves with your back and makes long hours easier. The Double Back Design also spreads support across your spine. I noticed less pain after long typing sessions.
The M57 still holds its ground. It is light, simple, and still gives solid posture support.
Assembly for both took me less than 20 minutes. Both hold up to 330 lbs, which is strong enough for most users in the US.
What I Like
M59AS lumbar support: The back moves with me. My lower back feels less tense at the end of the day.
3D flip-up armrests: I can fold them up when I play guitar or sit cross-legged. That freedom feels great.
Mesh build: The chairs stay cool. In summer heat, this beats leather by far.
Saddle shape cushion (M59AS): My hips don’t feel sore even after long workdays.
What Could Be Better
Price gap: The M59AS costs more. It has extra features, but the M57 is kinder on the wallet.
Headrest tilt: The range is a bit short. Taller users may feel limited.
Stock in the US: The M59AS can sell out fast. The M57 is easier to find.
Recommendation
Pick the M59AS if you want the best comfort, flexible lumbar support, and long-hour seating. Pick the M57 if you want a budget-friendly mesh office chair that still works well.
Both meet BIFMA and SGS standards, so you know they are safe and tested for daily use. That matters for US buyers who want long-term value.
In short:
M59AS = More comfort and back health.
M57 = Simple, breathable, and affordable.
Is the Sihoo M57 Good?
Yes, the SIHOO M57 ergonomic office chair is a solid choice. I’ve used it for long workdays, and it balances comfort with support in a way that feels natural. The adjustable headrest gives steady neck support, while the adaptive lumbar support fits the curve of my lower back.
When I spent over six hours at my desk, the breathable mesh backrest kept me cool, unlike leather chairs that trap heat. The waterfall-edge seat also helped my legs feel relaxed because it didn’t cut off circulation. For me, that was a big plus during long Zoom calls or writing sessions.
The reinforced aluminum base feels strong and stable. It can hold up to 330 lbs, which makes it a good option for US buyers who want a safe and durable computer desk chair. Both BIFMA and SGS certifications add peace of mind, as these tests prove the chair meets global safety and quality standards.
What I Like
Ergonomic support that adapts to me: The split backrest design follows the curve of my spine. It feels natural and reduces strain after long hours.
3-way adjustable armrests: I can move them up, down, forward, or sideways. I often flip them out when I’m typing, then bring them back in for gaming.
Cooling mesh and seat design: The mesh stays breathable, and the waterfall-edge seat keeps my legs comfortable. I noticed less stiffness compared to my old chair.
What Could Be Better
Headrest range: While the adjustable headrest works well for me, taller users above 6’2” may want more tilt options.
Instructions: The setup guide could be clearer. I had to check a video to finish the assembly.
Color options: Right now, the main finishes are black and gray. More style choices would help it blend into different home offices.
Recommendation
If you want a mesh office chair that balances ergonomics, durability, and price, the SIHOO M57 is a strong pick. It’s best for people who sit for long stretches—writers, gamers, and remote workers.
For US buyers, it’s worth noting that the M57 meets BIFMA and SGS standards and is even backed by recommendations from the Ergonomics Application Association. That means it’s tested not just for comfort but also for safety and stability.
In short:
Choose the M57 if you want all-around comfort with adaptive lumbar support and breathable mesh.
Look at other models if you are taller than 6’2” or if you want more premium materials.
Details Comparison: Sihoo M59AS vs M57
I’ve used both the Sihoo M59AS and the Sihoo M57 for long workdays. Both are ergonomic mesh office chairs, but they feel different in design and comfort. Let’s break it down step by step.
Build Quality: Sihoo M59AS vs M57
The M59AS feels a bit more solid thanks to its double back design. The frame and mesh feel tight, and the reinforced aluminum base adds stability. The M57 is still sturdy, but it has a lighter feel and more plastic parts.
In my use, the M59AS gave me more confidence when leaning back. The M57 holds fine, but it feels less premium.
M59AS rating: 9/10
M57 rating: 8/10
Comfort and Support: Sihoo M59AS vs M57
The M59AS has adaptive lumbar support that moves with my spine. This made a clear difference when I worked for 6–8 hours. The Saddle Shape Cushion also reduced hip pressure. The M57 has good lumbar support, but it’s fixed and less dynamic.
My back felt fresher after long days in the M59AS. The M57 was fine for shorter sessions, but I noticed stiffness after extended use.
M59AS rating: 9.5/10
M57 rating: 8/10
Adjustability: Sihoo M59AS vs M57
Both chairs have 3D flip-up armrests and an adjustable headrest. On the M59AS, the headrest tilts more, which worked well for my neck. The M57 headrest works, but the range is smaller.
The tilt tension on the M59AS felt smoother and more natural. The M57 sometimes felt a bit stiff when reclining.
M59AS rating: 9/10
M57 rating: 7.5/10
Breathability: Sihoo M59AS vs M57
Both chairs use a mesh back and seat. The airflow was great on both, especially in warm weather. I didn’t sweat much even during long work hours.
If I had to compare, the mesh on the M59AS felt more elastic and firm. The M57’s mesh is softer, which some may prefer.
M59AS rating: 9/10
M57 rating: 9/10
Ease of Assembly: Sihoo M59AS vs M57
Both took me about 20 minutes to set up. The parts were labeled, and the hex tool was included. The M59AS instructions were a bit clearer. The M57’s guide was okay but could be improved.
No major issues with either, but I found the M59AS smoother to assemble.
M59AS rating: 9/10
M57 rating: 8/10
Performance: Sihoo M59AS vs M57
When it comes to day-to-day performance, the M59AS wins. The dynamic lumbar support and saddle cushion made long sessions less tiring. The M57 still performs well, but it’s simpler and better for shorter use.
For me, the M59AS kept me more focused and less fatigued.
M59AS rating: 9.5/10
M57 rating: 8/10
Ease of Use: Sihoo M59AS vs M57
Both are easy to adjust. The M59AS has more fine-tuned settings, but that also means a small learning curve. The M57 is simpler, which some may prefer.
I enjoyed the flexibility of the M59AS, though the M57’s straightforward setup was nice when switching between tasks.
M59AS rating: 9/10
M57 rating: 8.5/10
Value for Money: Sihoo M59AS vs M57
The M59AS costs more, but you get better ergonomics and build. If you spend long hours sitting, the price is justified. The M57 is cheaper and still gives solid support, making it a good choice for tighter budgets.
For US buyers, both meet BIFMA and SGS certifications, so whichever you choose, you’re getting a safe and tested product.
M59AS rating: 8.5/10
M57 rating: 9/10
Overall: Sihoo M59AS vs M57
Both chairs are good, but they suit different needs. The M59AS is better if you want premium ergonomics and plan to sit for long hours. The M57 is better if you want a reliable, breathable, and budget-friendly option.
From my experience, I lean toward the M59AS because it reduced my back pain and helped me work longer without fatigue. But if price matters more, the M57 is still a great pick.
M59AS overall rating: 9/10
M57 overall rating: 8.5/10
FAQs for Sihoo M59AS vs M57
Which chair is better for long hours, Sihoo M59AS vs M57?
The Sihoo M59AS offers stronger lumbar support and a saddle cushion, making it better for long work hours. The M57 is fine for shorter daily use.
Is the Sihoo M59AS worth the higher price compared to M57?
Yes, if you sit for many hours daily. The M59AS has premium build and comfort. The M57 is more budget-friendly while still reliable.
Do both Sihoo M59AS and M57 have breathable mesh?
Yes, both chairs use a breathable mesh back and seat. The M59AS mesh feels firmer, while the M57 has a softer, lighter mesh design.
Which chair is easier to assemble, Sihoo M59AS or M57?
Both take about 20 minutes to assemble. The M59AS has clearer instructions. The M57 is still easy but may need extra guidance from a video.
Are Sihoo M59AS and M57 good for tall users?
The M59AS has a better headrest tilt range, making it more suitable for taller users. The M57 fits well, but above 6’2” it may feel limited.
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