The catch
SIHOO M57
The mesh is firm. Shorter legs may find the fixed seat depth too long.
Side by side
SIHOO M57 vs Staples Hyken: M57 adjusts more contact points, while Hyken’s fixed seat has to fit already
Quick verdict
M57 gives you more lumbar and arm-position control and a higher load rating. Hyken is the simpler option if its fixed seat dimensions and height-adjustable arms already fit you.
Before you buy
Why, and what it costs you
M57 gives a full fifth more rated load
Its rating of 330 lb is 20 percent higher than Hyken's.
Where this comes from
(330 divided by 275 minus 1) times 100 gives 20 percent.
The catch
Staples Hyken
The fixed 16.7-inch seat depth can leave taller or broader users feeling cramped in the frame.
SIHOO M57
- Why pick it
- Moving lumbar support in and out appeals to you.
- Your rating needs to be above 275 lb.
- The catch
- The mesh is firm. Shorter legs may find the fixed seat depth too long.
Staples Hyken
- Why pick it
- You fit a seat 19.3 inch wide and 16.7 inch deep.
- Your desk needs nothing beyond arm-height adjustment.
- The catch
- The fixed 16.7-inch seat depth can leave taller or broader users feeling cramped in the frame.
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What this page compares
Mesh-seat fit, lumbar adjustment and arm placement are compared for SIHOO M57 and Staples Hyken, with clear limits around their fixed seat depths and load ratings.
Which one fits
Pick the situations that sound like you
Need to adjust lumbar projection
Lumbar depth adjusts on M57.
- SIHOO M57
- Better fit
- Staples Hyken
- Caution
The user weighs from 276 to 330 lb
M57 alone is within its rating.
- SIHOO M57
- Better fit
- Staples Hyken
- Caution
Need the arm pads to pivot or adjust fore-aft
Those movements come with M57.
- SIHOO M57
- Better fit
- Staples Hyken
- Caution
Need a slider for seat depth
Neither seat adjusts in depth.
- SIHOO M57
- Caution
- Staples Hyken
- Caution
In practice
Differences you will notice
M57 gives a full fifth more rated load
Its rating of 330 lb is 20 percent higher than Hyken's.
How we worked this out
(330 divided by 275 minus 1) times 100 gives 20 percent.
Lumbar height by itself can't pull the support back
When pressure feels too direct, M57 has an additional adjustment.
How we worked this out
Set M57's height-and-depth lumbar against Hyken's height-only lumbar adjustment.
The fixed seat has to fit first on both
Hyken's listed depth is 16.7 inch. Neither offers a seat slide.
How we worked this out
With a fixed depth, you can't change thigh support on its own at the same seat height.
Option A
SIHOO, Black
M57
This budget all-mesh chair has been around a long time. It offers adjustable lumbar, 3D arms, a headrest and a deeper recline.
- Best for
- Medium to taller users who want airflow and head support on a budget
Facts we checked
- Arms with three-dimensional adjustment move up and down, front to back, and pivot
- Lumbar support can be shifted both vertically and horizontally
- A 330 lb maximum load and a 126 degree recline are listed in the official specifications
Option B
Staples, ST63139, Charcoal Gray
Hyken
Compact and all-mesh, this budget staple has a headrest, adjustable lumbar support and a tilt lock with three positions.
- Best for
- A cool mesh chair priced below premium models, for petite users
Facts we checked
- Nine adjustment options are listed by Staples, among them headrest, lumbar and arm height
- Mesh seat, 16.7 inches deep and 19.3 inches wide
- Staples adds a five-year limited warranty, and the rating is 275 lb
Spec by spec
Where they really differ
| Spec | SIHOO M57 | Staples Hyken | In practice |
|---|---|---|---|
| Lumbar adjustment | Height and depth | Height | M57 has its own way to alter how far the support projects. |
| Arms | 3D with fore-aft and pivot movement | Height adjustable | On M57 you can change where the pads sit around the work surface. |
| Rated load | 330 lb | 275 lb | M57 has 55 lb more capacity. |
| Seat-depth control | Fixed | Fixed at listed 16.7 inches | When a seat slide is required, neither solves it. |
| Recline description | Up to 126 degrees | Tilt with adjustable resistance and lock | M57 gives an angle, and Hyken describes the locking mechanism. |
Trade-offs
What each pick costs you
With SIHOO M57
- Premium commercial chairs do better on build refinement, caster quality and warranty depth.
With Staples Hyken
- The Amazon listing has only a generic name, so before you buy, confirm it is ST63139 or the matching Hyken configuration.
Change of plan
When the answer changes
A seat that is short and adjustable matters more than a headrest
Neither model fits. Breck's depth adjusts from 15 to 17.25 inches, and its seat is cushioned.
Decision guide
How to decide
More lumbar and arm-position control plus a higher load rating point to M57. Hyken is the simpler choice when its fixed seat dimensions and height-adjustable arms already fit.
If strong lumbar projection bothers you
On M57 the support moves inward and outward as well as vertically, while Hyken only changes height. That makes M57 the more promising place to start when you know position alone will not settle your preference, though comfort still needs testing.
For a desk where the keyboard area is narrow
The arm pads on M57 move fore and aft and pivot, whereas Hyken mainly changes their height. If your elbows cannot line up comfortably over the pads, a seat that otherwise fits will not make the arms any more useful.
For budget shopping when you know your seat size
Hyken's published figures are a 19.3 inch seat width and 16.7 inch depth. They help if you can compare them with a chair you know. Seat depth is fixed on both models, so pick an adjustable-depth alternative when that dimension is uncertain.
What this page can’t tell you
- Documented controls and dimensions are what this comparison uses. No hands-on test of pressure, durability or comfort was done by us.
- A manufacturer warranty depends on the seller's eligibility and on regional terms. Neither chair is presented as treating pain.
By the numbers
What the data shows
What we found across the office chairs we compare, plus the checked facts behind each finding.
How many fit
Only 2 of the 32 models checked meet every need here: “I want solid basics without paying premium prices”, “I like a suspended mesh seat”, “I need lower-back support I can adjust”, and “I need flexible arm support for my keyboard and devices”.
2 models fit, out of 32 checkedThe gap in numbers
SIHOO M57 lists 330 lb for listed user-weight limit, 20% more than the 275 lb on Staples Hyken.
- SIHOO M57
- 330 lb
- Staples Hyken
- 275 lb
- Models with this figure
- 13 of 32
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “I want solid basics without paying premium prices”, “I like a suspended mesh seat”, “I need lower-back support I can adjust”, and “I need flexible arm support for my keyboard and devices”. A need with no documented match is not counted.
How we calculatedThis is the user-weight limit the maker publishes for the named chair. It says nothing about comfort or how well the chair holds up over the years. For context, 13 of 32 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| SIHOO M57 |
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| Staples Hyken |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
SIHOO M57
Moving lumbar support in and out appeals to you.
See price & reviews on AmazonStaples Hyken
You fit a seat 19.3 inch wide and 16.7 inch deep.
See price & reviews on AmazonEach link opens in a new tab.
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