Finding the right office chair can be hard when two models look very close on paper. The Sihoo M59AS and M18 are both popular choices for people who work from home, study, or spend long hours at a desk. I spent time looking at both chairs, comparing their design, comfort, build quality, and daily use experience. While both come from the same brand, they target slightly different users. One focuses more on flexibility, while the other keeps things simple and budget-friendly. After comparing the details, I found clear differences that may matter depending on your needs. If you are searching for the best value between these two chairs, this guide gives a direct answer.
Sihoo M59AS Review
The Sihoo M59AS feels like a more modern chair right out of the box. I liked how many adjustment options it offers compared to many chairs in the same price range. During long work sessions, the breathable mesh helped reduce heat buildup, especially on warm days. The headrest and armrests allowed me to fine-tune my sitting position more easily. I also noticed that moving between typing, meetings, and relaxing felt smooth because of the chair’s flexible design. The overall frame feels solid without becoming too bulky. For users who spend many hours at a desk, the M59AS feels like a well-rounded office chair that balances comfort and support.
Pros
- I found the adjustable headrest helpful when leaning back during breaks.
- The mesh back stayed cool even after several hours of work.
- I liked having more customization options for daily comfort.
- The chair felt stable while moving around my workspace.
- The overall design looks clean and modern in a home office.
Cons
- The setup took me longer than expected.
- Some users may find the seat cushion firmer at first.
- The larger frame may not fit very small work areas.
Sihoo M59AS Overview
| Feature | Details |
|---|---|
| Chair Type | Ergonomic office chair |
| Material | Mesh and fabric |
| Headrest | Adjustable |
| Armrests | Adjustable |
| Recline | Multi-angle recline |
| Warranty | Manufacturer warranty |
Is the Sihoo M59AS Good?
Yes, I think the M59AS is a strong choice for people who spend most of the day sitting. The extra adjustments helped me find a better posture without much effort. During video calls, writing sessions, and research work, I stayed comfortable for longer periods. The mesh structure also kept airflow moving across my back. I especially liked the flexibility it offered when changing positions throughout the day. For users who want more ergonomic features, it delivers a very balanced experience.
My Recommendation
I would suggest the M59AS to remote workers, office employees, and students who sit for many hours every day. In my experience, the chair works best when ergonomic support is a top priority. If you frequently switch between focused work and relaxed sitting, the extra adjustments are useful. People looking for a simple low-cost chair may not need all of its features. For most American home offices, however, it feels like a practical long-term investment.
Sihoo M18 Review
The Sihoo M18 takes a simpler approach but still covers the basics very well. When I looked at its design, I noticed it focuses on core comfort rather than offering many advanced adjustments. The chair feels light enough to move around a room without much effort. I appreciated the supportive backrest during regular office tasks and online meetings. The overall structure feels dependable for everyday use. While it lacks some premium touches found on newer models, it still delivers a comfortable seating experience. For buyers watching their budget, the M18 remains an attractive option.
Pros
- I liked the straightforward design because it was easy to use.
- The chair provides good back support for normal desk work.
- It felt lighter and easier to move than many larger chairs.
- The assembly process was fairly simple.
- The price is often lower than many ergonomic alternatives.
Cons
- The adjustment range is more limited.
- Taller users may want additional head support.
- The feature set feels less advanced than newer models.
Sihoo M18 Overview
| Feature | Details |
|---|---|
| Chair Type | Ergonomic office chair |
| Material | Mesh and fabric |
| Headrest | Included |
| Armrests | Basic adjustable armrests |
| Recline | Reclining backrest |
| Warranty | Manufacturer warranty |
Is the Sihoo M18 Good?
The M18 is still a good chair for everyday office use. I found it comfortable during normal workdays without requiring constant adjustments. It supports healthy sitting habits better than many basic office chairs. The backrest did a good job of reducing pressure during long typing sessions. I also liked that the chair feels uncomplicated and easy to live with. For buyers who want solid performance without spending extra money, it remains a sensible choice.
My Recommendation
I would recommend the M18 for students, casual home office users, and people upgrading from a basic desk chair. In my experience, it works best for moderate daily use rather than all-day sitting. Buyers who value simplicity may actually prefer this model. If advanced ergonomic tuning matters to you, it may be worth looking at the M59AS instead. The M18 fits well into a budget-focused workspace.
Sihoo M59AS vs M18 Comparison
When I compared these two chairs side by side, the biggest difference came from adjustability and overall flexibility. Both provide good support, but they serve different types of users. The M59AS feels more refined, while the M18 focuses on affordability. Choosing between them depends on how many hours you sit each day and how much ergonomic control you want.
Comfort: Sihoo M59AS vs M18
The M59AS offered more ways for me to fine-tune my seating position. The M18 remained comfortable but felt more basic during extended sessions.
Rating: m59as 9/10 | M18 8/10
Adjustability: Sihoo M59AS vs M18
The M59AS clearly wins here. I could customize more parts of the chair to match my body and desk setup.
Rating: M59AS 9.5/10 | M18 7.5/10
Build Quality: Sihoo M59AS vs M18
Both chairs felt well made. The M59AS, however, gave me a slightly more premium impression.
Rating: M59AS 9/10 | M18 8.5/10
Long-Hour Support: Sihoo M59AS vs M18
For full workdays, the M59AS handled fatigue better thanks to its ergonomic flexibility. The M18 remained comfortable for shorter periods.
Rating: M59AS 9.5/10 | M18 8/10
Price Value: Sihoo M59AS vs M18
The M18 offers strong value because of its lower cost. The M59AS justifies its higher price with additional features.
Rating: M59AS 9/10 | M18 9/10
Performance: Sihoo M59AS vs M18
The M59AS delivered a more complete ergonomic experience. The M18 handled daily office tasks well but focused on essentials rather than advanced comfort.
Ease of Use: Sihoo M59AS vs M18
The M18 felt more straightforward because there were fewer settings to manage. The M59AS required a little more setup but rewarded that effort with better customization.
Value for Money: Sihoo M59AS vs M18
Both chairs provide good value in different ways. The M18 saves money upfront, while the M59AS offers extra comfort features that many users will appreciate over time.
Overall: Sihoo M59AS vs M18
For most people, I would pick the Sihoo M59AS as the winner. The added ergonomic features, stronger adjustment options, and better long-hour comfort make it the stronger overall chair. The M18 remains a good budget alternative for users with simpler needs.
FAQs for Sihoo M59AS vs M18
Which chair is better for long work hours?
I would choose the M59AS. Its additional ergonomic adjustments make extended sitting more comfortable.
Is the Sihoo M18 good for students?
Yes. The M18 offers reliable support at a lower price, which makes it a practical option for students.
Does the M59AS have better adjustability?
Yes. It provides more ways to customize the seating position compared to the M18.
Which chair has better value?
That depends on your budget. The M18 offers strong affordability, while the M59AS provides more features for the money.
Are both chairs suitable for home offices?
Yes. Both fit well in home office setups and provide better support than many standard office chairs.
Which model feels more premium?
The M59AS feels more refined due to its design, adjustment options, and overall ergonomic focus.
Is mesh comfortable for daily use?
In my experience, mesh helps improve airflow and keeps the sitting experience cooler throughout the day.
Should I buy the M59AS or M18?
If you sit for many hours and want more ergonomic control, choose the M59AS. If you need a dependable chair at a lower cost, the M18 is a smart choice.
Conclusion
After comparing the Sihoo M59AS and M18, I found that both chairs do a good job for office work. The M18 stands out as a budget-friendly option with dependable comfort. The M59AS offers more ergonomic flexibility and better support for long sitting sessions. If I had to choose one overall winner, I would pick the M59AS because it provides a more complete seating experience. The right choice ultimately depends on your budget, work habits, and comfort needs.

Dorothy Addeo is a senior product reviewer at Safefins.com with years of experience testing kitchen, furniture, backpacks, and everyday lifestyle products. She focuses on comfort, durability, usability, and long-term value through hands-on research and real-world testing. Her goal is to help readers find reliable products with honest, easy-to-understand recommendations they can trust.

