SIHOO
SIHOO M59AS Ergonomic Office Chair, Desk Chair with 3D Flip-up Armrests, Computer Chair with Dual Back Design and Adaptive Dynamic Lumbar Support Grey
Very Good
In stock on Amazon.com
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Branch
Branch Ergonomic Chair Pro - Mesh Office Chair with 14 Points of Adjustment - Height, Depth & Tilt Adjustable - 5D Armrests - Forward Tilt, Smooth Recline, and Lumbar Support - Black
Very Good
- Mesh back
- 4D arms
- Adjustable lumbar
- Seat depth adjustment
$499.00
In stock on Amazon.com
Check PriceSpecs verified August 2026
Amazon.com data updated October 13, 2026, 2:34 pm ET. Price and availability are accurate as of the time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply.
Ergo Score Breakdown
Ergo Score: 51/100
Adjustability 23/40
Armrests10/104D armrests: 10/10
Seat height0/6Not listed by the seller
Seat depth5/5seat depth adjustment: 5/5
Lumbar adjustment5/7lumbar adjustments: 5/7
Recline0/2Not listed by the seller
Tilt lock0/3Not listed by the seller
Tilt tension3/3tilt tension: 3/3
Advanced tilt0/4Not listed by the seller
Support 21/30
Lumbar support12/12lumbar support: 12/12
Upper back support0/4Not listed by the seller
Headrest adjustment0/2Not listed by the seller
Cushion5/5high-density-foam seat: 5/5
Seat edge0/3Not listed by the seller
Breathable back4/4mesh back: 4/4
Build 7/30
Warranty0/9Not listed by the seller
Weight capacity4/6275 lb capacity: 4/6
Certifications0/5Not listed by the seller
Base0/3Not listed by the seller
Gas lift0/2Not listed by the seller
Owner rating3/54.3 stars from 142 reviews: 3/5
Comfort Index
Comfort Index: 51/100
Seat cushion16/20
Cushion thicknessNot listed by the seller
ReclineNot listed by the seller
Breathable back15/15
HeadrestNot listed by the seller
Armrests10/10
Owner rating10/25
Specifications
| Seat height range | Not listed by the seller |
|---|---|
| Seat width | Not listed by the seller |
| Seat depth | Not listed by the seller |
| Seat depth adjustable | Yes |
| Seat cushion | High-density foam |
| Cushion thickness | Not listed by the seller |
| Back material | Mesh |
| Backrest height | Not listed by the seller |
| Backrest width | Not listed by the seller |
| Armrests | 4D adjustable |
| Lumbar support | Yes |
| Lumbar adjustments | Height, depth |
| Headrest | Not listed by the seller |
| Max recline | Not listed by the seller |
| Tilt mechanism | Not listed by the seller |
| Base material | Not listed by the seller |
| Casters | Not listed by the seller |
| Gas lift | Not listed by the seller |
| Weight capacity | 275 lb |
| Chair weight | 42 lb |
| Overall height | Not listed by the seller |
| Warranty | Not listed by the seller |
| Certifications | Not listed by the seller |
What We Like
- 4D arms, a seat depth adjustment and a lumbar that moves in height and depth give it an adjustability sub-score of 23, one of the highest in the home office category.
- The back is mesh over a high-density foam seat cushion.
Watch Out For
- The build sub-score is 7: the warranty, certification, base material and gas lift class lines all score zero.
- The title names forward tilt and recline, but a recline angle and a tilt lock are not stated in the spec details.
- It is among the five highest-priced chairs in its category, with 142 reviews behind the 4.3 rating.
At a Glance
Branch's Pro model puts its adjustability into the arms, the seat and the lumbar, on a mesh back. The arms move four ways, and the listing states a 275 lb capacity.
Who This Chair Is For
- People who change arm position through the day, since the arms adjust four ways.
- Sitters who want the lumbar set separately for height and depth.
Who Should Look Elsewhere
- Anyone who wants a headrest: the listing does not state one.
- Anyone above the 275 lb the listing states.
How the Branch Ergonomic Chair Pro handles lumbar and tilt
The lumbar moves in height and depth, and tilt tension is adjustable.
Alternatives to Consider
Why consider: Reclines to 125 degrees and carries a 3-year warranty, neither of which the Branch Pro listing states, and has a Comfort Index of 71 against 51 here.
FLEXISPOT
FLEXISPOT ErgoX Premium Ergonomic Office Chair with Footrest - Adjustable 3D Armrests, Dynamic Lumbar Support, Recline & Tilt Function, Mesh Seat, for Home & Office Use, Black
Very Good
In stock on Amazon.com
Why consider: States a seat height range of 20.1 to 22.4 inches and 3 tilt lock positions, neither of which the Branch Pro listing states, though its arms are 3D against 4D here.
Frequently Asked Questions
How do the arms adjust?
The listing states height, width, depth and pivot adjustment, which is the 4D class.
What does the Branch Pro weigh?
The chair weight is listed at 42 lb.
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Amazon.com data updated October 13, 2026, 2:34 pm ET. Price and availability are accurate as of the time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply.