Sihoo M57 Ergonomic Office Chair Review: Worth It? (November 2026)
The SIHOO M57 suits desk users who want breathable mesh seating and several posture adjustments. Its headrest, lumbar support, 3D armrests and 90° to 126° recline give you options to tune the chair, but check its dimensions and fit before choosing it.
On this page (7 sections)
- What stands out about the SIHOO M57 ergonomic chair?
- Is the M57 a good choice for long desk sessions?
- What should you check before buying the M57?
- How does the M57 compare with the SIHOO M18?
- When does another SIHOO chair make more sense?
- Is the M57 right for your workspace?
- Should you choose the SIHOO M57?
The SIHOO M57 ergonomic office chair is a mesh-back chair with practical adjustments for desk work. You can change the headrest, lumbar support, seat height and recline, making it a strong fit if you want to shift posture during the day.
Its split backrest and mesh construction are paired with a waterfall-edge seat. Before buying, check the chair’s dimensions and whether its adjustment range suits your desk and sitting preferences.
What stands out about the SIHOO M57 ergonomic chair?
The M57 stands out for combining breathable mesh seating with adjustable headrest and lumbar support. See our mesh vs leather office chair guide to compare surface materials.
It also has 3D armrests and reclines from 90° to 126°.
SIHOO M57 Ergonomic Office Chair: Best for adjustable mesh seating
- Mesh back
- 3D armrests
- Adjustable headrest and lumbar support
- 90° to 126° recline
A mesh-back chair with adjustments for headrest position, lumbar height and depth, and recline. Consider it if you want to change your posture during desk work.
Pros
- Lumbar support adjusts in height and depth
- Headrest tilts and lifts
- 3D armrests
- Reclines from 90° to 126°
Cons
- Assembly required
- Check chair dimensions against your desk and room
The lumbar support moves in height and depth, so you can position it to meet your lower back. The headrest tilts and lifts, while the recline range lets you change your back angle rather than staying upright all day.
SIHOO describes the backrest as split and shaped to follow the spine’s natural curve. Those design details may appeal if you want more adjustment than a basic fixed-back task chair provides, though comfort and fit still depend on your body and setup.
Is the M57 a good choice for long desk sessions?
The M57 may suit long desk sessions if its adjustable support and mesh back fit your body. Its feature set gives you several ways to change position, but no chair can guarantee comfort for every person.
The mesh back allows airflow, and the seat has a waterfall edge intended to support the thighs. The headrest, lumbar support and recline give you additional options to adjust how you sit through focused work and breaks.
Start with a neutral setup: feet supported, shoulders relaxed and elbows near desk height. Adjust the lumbar support so it meets your lower back without forcing you into an uncomfortable position.
An ergonomic office chair buying guide can help you compare seat fit, back support and adjustment needs across chair styles. If mesh is your priority, see our picks for the best ergonomic mesh office chair.
What should you check before buying the M57?
Check the chair’s size, your desk clearance and the fit of its support features before buying. The M57 measures 27.5 x 27.5 x 41.7 in, and its stated backrest width is 20.07 in.
| Detail | SIHOO M57 |
|---|---|
| Back | Mesh, split backrest |
| Seat | Waterfall edge |
| Headrest | Height and tilt adjustment |
| Lumbar support | Height and depth adjustment |
| Armrests | 3D adjustable |
| Recline | 90° to 126° |
| Dimensions | 27.5 x 27.5 x 41.7 in |
| Backrest width | 20.07 in |
| Weight capacity | 330 lb |
| Assembly | Required |
Measure the space beneath your desk, including the distance between any drawers or supports. Check whether the chair can roll back far enough and whether the armrests clear the desk when you move in.
The chair’s dimensions matter for access too. Measure doorways and tight turns along the route to your workspace, especially if the chair will be assembled before it enters the room.
If you need more height at the desk, first check the chair’s available height adjustment and your foot support. Our guide on how to make an office chair higher covers options and fit considerations.
How does the M57 compare with the SIHOO M18?
The M57 offers more specific adjustment details for its lumbar support and recline, while the M18 gives a recommended user height range. Choose based on which features matter more for your body and work setup.
The M57’s lumbar support moves in height and depth, and its recline is specified from 90° to 126°. The M18 lists seat height, headrest, lumbar support and back support adjustment, along with a recommended height range of 5 ft 6 in to 6 ft 2 in.
The M18 has a breathable mesh back and 2D armrests. It may be a better fit if its stated height range suits you and you don't need the M57’s listed 3D armrests or specified recline range.
Read our SIHOO M18 ergonomic office chair reviews for a closer look at that alternative. For a side-by-side choice, compare the SIHOO M18 or M57 ergonomic chair.
When does another SIHOO chair make more sense?
Consider another SIHOO chair if you need a feature the M57 does not list, such as a retractable footrest or a full-mesh seat. The B100 PRO has both, along with 4D flip-up armrests and three recline angles.
SIHOO M18 Ergonomic Office Chair: Best for a simpler SIHOO alternative
- Breathable mesh back
- Adjustable headrest
- Adjustable lumbar support
- Seat and back support adjustments
A mesh-back alternative with four support points and several adjustments. Its stated height range can help you decide whether it may suit your frame.
Pros
- Adjustable headrest and lumbar support
- Mesh back promotes airflow
- Height range is stated
Cons
- Armrests are 2D rather than 3D
- No recline angle range is stated
SIHOO B100 PRO Ergonomic Mesh Office Chair: Best for a footrest and full-mesh seat
- Full-mesh back and seat
- Retractable footrest
- 4D armrests
- Three recline angles
A full-mesh option with a retractable footrest, 4D armrests and three recline positions. Consider it if those features matter more than the M57's adjustable lumbar depth.
Pros
- Retractable footrest
- 4D flip-up armrests
- Three recline angles
Cons
- Lower stated weight capacity than the M57
- Footrest needs space to extend
The B100 PRO’s full-mesh seat and back may appeal if you want airflow across more of the chair. Its footrest can extend for breaks, but make sure you have room in front of the chair for it.
The M18 may suit you better if the stated height range is useful and its adjustment set covers your needs. For more options across the range, see our guide to the best SIHOO ergonomic office chair.
Is the M57 right for your workspace?
The M57 is a sensible choice if you want mesh seating, adjustable lumbar support and a wide recline range. It is less compelling if you need a footrest, a full-mesh seat or a chair selected around a stated height range.
Before choosing, consider how long you sit, how often you recline and whether you use the headrest. You can also compare another model in the Hbada E3 Pro chair review.
Also think about desk height, legroom and how much room you have to move the chair.
A chair with wheels is not the only option for active sitting. If you are comparing different seating positions, our guide to a saddle stool without wheels explains what to consider.
Gaming chairs are another common alternative, but their shape and support vary. See are gaming chairs good for your back for a practical comparison of sitting styles.
Should you choose the SIHOO M57?
Choose the SIHOO M57 if you want a mesh-back chair with 3D armrests, adjustable lumbar depth and a 90° to 126° recline. Choose the M18 if its stated user height range matters more, or the B100 PRO if a footrest and full-mesh seat are priorities.
Check your desk clearance and chair dimensions before deciding. The right fit depends on whether the support and adjustment points work for your body and workspace.
Frequently asked questions
Is the SIHOO M57 a mesh chair?
Yes. The M57 has a breathable mesh back and a waterfall-edge seat.
Its mesh back may suit you if you want airflow behind your torso, while the padded seat offers a different feel under your thighs; check the chair’s measurements and seating shape against your preferences.
What can you adjust on the SIHOO M57?
You can adjust the headrest height and tilt, lumbar support height and depth, seat height, and recline. The chair reclines from 90° to 126°, and its armrests are 3D adjustable.
These controls offer several ways to change position during desk work.
How does the SIHOO M57 compare with the M18?
The M57 has 3D armrests, lumbar adjustment in both height and depth, and a stated recline range of 90° to 126°. The M18 has 2D armrests and its stated adjustments include seat height, headrest, lumbar support and back support; it also gives a recommended height range of 5 ft 6 in to 6 ft 2 in.
Does the SIHOO M57 need assembly?
Yes, assembly is required. Set aside clear floor space before you start, and follow the included instructions.
Check the assembled chair’s dimensions against your desk, doorway and room layout so it can move into place and fit without blocking nearby paths.
