Main trade-off
Branch Ergonomic Chair
The documented 3D arm movements do not include pad pivot.
Head-to-head
Choose Soji when you want the pads to pivot as your forearms change angle between typing and a handheld device. Soji adds arm-pad pivot to the height, width and depth movements shared with the original Branch. Choose Branch when its three-dimensional arms fit and being able to remove them is useful for another activity. Both adjust seat depth and manual recline tension. The linked Mist Soji does not establish the optional forward-tilt package.
Before you choose
Typing and holding a tablet need not put the forearms at the same angle. Both chairs can change pad height, width and depth, but the selected Soji also pivots the pads. That can let the support follow the second task without shifting the entire chair. Branch may already work if your elbows stay in a similar position. The useful test is the actual movement between tasks, not a generic four-versus-three adjustment count.
What this is based on
Verified arm directions crossed with two device positions. No exact reach or comfort improvement is assumed.
Main trade-off
The documented 3D arm movements do not include pad pivot.
Main trade-off
Do not assume the optional forward tilt is present in the linked Mist package.


Original Branch Ergonomic Chair vs Haworth Soji for typing, tablets and a desk that serves several jobs. Compare arm movement and the selected packages.
These are padded-seat, mesh-back task chairs for the same home-office job. Both already supply seat-depth and manual tension control, so arm behavior is a more useful starting point.
Winner by situation
Selected Soji provides pivot.
Branch documents removal. Soji removal was not established.
Both provide these controls.
Do not assume it on either linked configuration.
What matters in practice
Typing and holding a tablet need not put the forearms at the same angle. Both chairs can change pad height, width and depth, but the selected Soji also pivots the pads. That can let the support follow the second task without shifting the entire chair. Branch may already work if your elbows stay in a similar position. The useful test is the actual movement between tasks, not a generic four-versus-three adjustment count.
Verified arm directions crossed with two device positions. No exact reach or comfort improvement is assumed.
For a person who types during the day and plays an instrument at the same desk later, a movable pad can still leave the arm structure in the way. Branch documents removable arms, so that option can be checked against the assembly instructions. This research does not establish the same removal arrangement for the selected Soji. Do not conclude that Soji cannot be modified. Choose Branch for this requirement only after accepting that removal may be a deliberate setup change rather than a daily quick action.
Positive documentation of removability crossed with an arm-obstructed task. Unknown Soji removal procedure stays unknown.
Soji publishes a seat-depth range of 16.25 to 18.75 inches. Branch publishes an 18 to 22 inch depth figure without a sufficiently clear matching measurement basis in the source reviewed here. Subtracting those figures could make Branch look dramatically larger without proving usable sitting depth. Both have a slider, so test the shortest and longest usable positions with your back against the backrest. A clear unknown is more useful than a precise-looking but unreliable fit claim.
Measurement-basis conflict recorded explicitly. No cross-brand depth calculation is performed.

Branch, Original, Pebble / White, no headrest
The three-dimensional arm movement already fits your typing position.

Haworth, Mist
The forearm angle changes between keyboard and handheld-device work.
Meaningful differences
| What changes | Branch Ergonomic Chair | Haworth Soji | Why it matters |
|---|---|---|---|
| Arm directions | Height, width and depth | Height, width, depth and pivot in selected package | Pivot changes pad angle without requiring the whole chair to rotate. |
| Open side for other tasks | Documented removable arms | Arm removal is not established here | Missing documentation is not proof of impossibility. Branch is the verified option for this requirement. |
| Recline | Manual tension and synchronized tilt | Manual tension and upright lock | Both leave resistance under the user’s control. |
| Seat depth | Adjustable, published measurement basis unclear | 16.25 to 18.75 inches | Try both. The unlike published measurements do not support a reliable depth subtraction. |
What you give up
Recommendation switch
Choose Haworth Soji. Soji adds pad pivot.
Choose Branch Ergonomic Chair. Branch provides that option, subject to its assembly procedure.
What matters in practice
You want arm support while typing, but the same desk may also need open space for a tablet, instrument or another close task.
What the facts say
Useful conclusions from the current office chairs comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Branch Ergonomic Chair |
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| Haworth Soji |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

The three-dimensional arm movement already fits your typing position.
You want documented removable arms for an occasional task that needs an open side.
See price & reviews on Amazon
The forearm angle changes between keyboard and handheld-device work.
You want pad pivot while keeping seat-depth and manual recline control.
See price & reviews on AmazonLinks open in a new tab.