Main trade-off
SIHOO M57
The mesh is firm and the fixed seat depth can be too long for shorter legs.
Head-to-head
SIHOO M57 vs Staples Hyken: M57 adjusts more contact points, Hyken needs its fixed seat to fit
The short answer
M57 offers more lumbar and arm-position control with a higher load rating. Hyken is a simpler option when its fixed seat dimensions and height-adjustable arms already fit.
Before you choose
The reasoning and the trade-offs
M57 adds a full fifth of rated load
Its 330 lb rating is 20 percent above Hyken.
What this is based on
(330 divided by 275 minus 1) times 100 equals 20 percent.
Main trade-off
Staples Hyken
The 16.7-inch seat depth is fixed and the frame can feel cramped for taller or broader users.
SIHOO M57
- Choose it for
- You want to move lumbar support in and out.
- You need a rating above 275 lb.
- Main trade-off
- The mesh is firm and the fixed seat depth can be too long for shorter legs.
Staples Hyken
- Choose it for
- A 19.3 inch wide, 16.7 inch deep seat fits you.
- Arm-height adjustment is enough for your desk.
- Main trade-off
- The 16.7-inch seat depth is fixed and the frame can feel cramped for taller or broader users.
About this comparison
Compare SIHOO M57 and Staples Hyken for mesh-seat fit, lumbar adjustment and arm placement, with clear limits around their fixed seat depths and load ratings.
Winner by situation
Start with what you need it to do
Need lumbar projection adjustment
M57 adjusts lumbar depth.
- SIHOO M57
- Better fit
- Staples Hyken
- Caution
User weight between 276 and 330 lb
Only M57 is within its rating.
- SIHOO M57
- Better fit
- Staples Hyken
- Caution
Need arm-pad pivot or fore-aft adjustment
M57 supplies those movements.
- SIHOO M57
- Better fit
- Staples Hyken
- Caution
Need a seat-depth slider
Neither has an adjustable-depth seat.
- SIHOO M57
- Caution
- Staples Hyken
- Caution
What matters in practice
The differences that matter
M57 adds a full fifth of rated load
Its 330 lb rating is 20 percent above Hyken.
How we reached this conclusion
(330 divided by 275 minus 1) times 100 equals 20 percent.
Lumbar height alone cannot retract support
M57 offers an extra adjustment when pressure feels too direct.
How we reached this conclusion
Compare M57 height-and-depth lumbar with Hyken height-only lumbar adjustment.
Both require the fixed seat to fit first
Hyken gives a 16.7 inch listed depth, while neither offers a seat slide.
How we reached this conclusion
A fixed-depth design cannot independently change thigh support at the same seat height.
Choice A
SIHOO, Black
M57
A long-running budget all-mesh chair with adjustable lumbar, 3D arms, a headrest and a deeper recline.
- Best matched use
- Affordable airflow and head support for medium to taller users
Checked facts
- Three-dimensional arms move vertically, front to back and by pivot
- Lumbar support adjusts vertically and horizontally
- Official specifications list a 126 degree recline and 330 lb maximum load
Choice B
Staples, ST63139, Charcoal Gray
Hyken
A compact all-mesh budget staple with a headrest, adjustable lumbar and three-position tilt lock.
- Best matched use
- Petite users who want a cool mesh chair below premium prices
Checked facts
- Staples lists nine adjustment options including headrest, lumbar and arm height
- The mesh seat measures 19.3 inches wide by 16.7 inches deep
- Rated to 275 lb with a five-year Staples limited warranty
Meaningful differences
What changes the fit
| What changes | SIHOO M57 | Staples Hyken | Why it matters |
|---|---|---|---|
| Lumbar adjustment | Height and depth | Height | M57 provides a separate way to alter support projection. |
| Arms | 3D with fore-aft and pivot movement | Height adjustable | M57 can change pad placement around the work surface. |
| Rated load | 330 lb | 275 lb | M57 adds 55 lb of capacity. |
| Seat-depth control | Fixed | Fixed at listed 16.7 inches | Neither is a solution when a seat slide is required. |
| Recline description | Up to 126 degrees | Tilt with adjustable resistance and lock | M57 publishes an angle while Hyken describes the locking mechanism. |
What you give up
Every choice has a cost
If you choose SIHOO M57
- Build refinement, caster quality and warranty depth trail premium commercial chairs.
If you choose Staples Hyken
- Amazon names this listing generically, so confirm ST63139 or the corresponding Hyken configuration before purchase.
Recommendation switch
The decision flips if...
A short adjustable seat is more important than a headrest
Choose neither. Breck adjusts from 15 to 17.25 inches of depth and uses a cushioned seat.
What matters in practice
How to make the call
For someone who dislikes strong lumbar projection
M57 lets you adjust the support inward and outward as well as vertically. Hyken only offers the height change. That makes M57 a more promising starting point when you know position alone will not solve your preference, although comfort still needs testing.
For a desk with a narrow keyboard area
M57 arm pads can move fore and aft and pivot. 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 more useful.
For budget shopping with a known seat size
Hyken publishes a 19.3 inch seat width and 16.7 inch depth. Those measurements are useful if you can compare them with a familiar chair. Both models keep the seat depth fixed, so choose an adjustable-depth alternative when that dimension is uncertain.
What this comparison cannot tell you
- This comparison uses documented controls and dimensions. We have not measured pressure, durability or comfort in a hands-on test.
- Manufacturer warranties depend on seller eligibility and regional terms. Neither chair is presented as treatment for pain.
What the facts say
What the comparison shows
Useful conclusions from the current office chairs comparison, followed by the checked facts used to reach them.
Compared set
Only 2 of 32 models checked match every need here: “I want strong basics without premium pricing”, “I prefer a suspended mesh seat”, “I want adjustable lower-back support”, and “My keyboard and devices need flexible arm support”.
2 matching models from 32 checkedMeasured difference
SIHOO M57 lists 330 lb for published user-weight limit, 20% above Staples Hyken at 275 lb.
- SIHOO M57
- 330 lb
- Staples Hyken
- 275 lb
- Comparable models
- 13 of 32
See the checked facts and calculation notes
Match countThe count uses the current product-to-need assignments for “I want strong basics without premium pricing”, “I prefer a suspended mesh seat”, “I want adjustable lower-back support”, and “My keyboard and devices need flexible arm support”. A need with no documented match does not count.
Calculation noteThis is the published user-weight limit for the named chair. It does not measure comfort or long-term durability. 13 of 32 models have comparable published figures for context.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| SIHOO M57 |
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| Staples Hyken |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
SIHOO M57
You want to move lumbar support in and out.
See price & reviews on AmazonStaples Hyken
A 19.3 inch wide, 16.7 inch deep seat fits you.
See price & reviews on AmazonLinks open in a new tab.