The catch
SIHOO B300 Pro
Seat depth is not set by automatic tension, and each user's preferred resistance is not guaranteed.
Side by side
B300 Pro is the choice for frequent handovers and quick arm clearance. B300 combines flip-up arms with automatic resistance, plus lumbar height and depth controls. Original Branch is the choice if a padded seat and manual tension are the stronger preferences. Branch’s arms are removable, which is different from flipping them away between tasks. Neither linked package includes a footrest, and Branch’s optional headrest is not included.
Before you buy
B300 offers two relevant conveniences when the chair is pushed under a desk after work and handed to another person later. The arms flip away, and recline resistance responds to the sitter. Branch can remove its arms, but that is a different setup choice, and tension stays manual. These differences grow more useful as handovers get frequent. A single user who leaves the chair set up may gain much less from them.
Where this comes from
Arm clearance and resistance mechanism set against daily parking and shared use. No time saving is promised and desk clearance is not guaranteed.
The catch
Seat depth is not set by automatic tension, and each user's preferred resistance is not guaranteed.
The catch
Removing the arms changes the configuration. Lumbar adjustment alters height and leaves depth unchanged.


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A shared small office is where B300 Pro and the original Branch meet. Compare arm clearance, padded versus mesh seating and which adjustments must be reset each day.
Either of these adjustable home-office chairs can serve the same desk. The B300 pairs a mesh seat with automatic recline and flip-up arms, while the original Branch keeps a padded seat and manual resistance.
Which one fits
B300 pairs automatic resistance with flip-up arms.
That combination comes with original Branch.
On B300, projection and height are separate.
Fit still needs checking, and only B300 stays within its stated rating.
In practice
B300 offers two relevant conveniences when the chair is pushed under a desk after work and handed to another person later. The arms flip away, and recline resistance responds to the sitter. Branch can remove its arms, but that is a different setup choice, and tension stays manual. These differences grow more useful as handovers get frequent. A single user who leaves the chair set up may gain much less from them.
Arm clearance and resistance mechanism set against daily parking and shared use. No time saving is promised and desk clearance is not guaranteed.
If you are coming from an ordinary padded chair, you may already know you prefer a cushion. Original Branch keeps that construction and adds seat-depth and arm adjustments. B300’s mesh seat is a real change, even if its handover features look more convenient. Try the contact surface and do not assume mesh is more comfortable or cooler for everyone. For a user within both load ratings, the preferred seat is a sensible reason to choose Branch.
A known material preference is set against verified seat construction. No measurement of temperature, pressure or long-term comfort.
At a shared desk, someone may find the support at the right height but too prominent. B300 has a separate depth adjustment, so projection can change without deliberately misplacing the contact height. Original Branch can move the pad up and down or take it off. That can still be acceptable, but it is a different solution. If keeping some contact matters to both users, try B300’s depth setting.
Differing contact preferences are weighed against height and depth versus height and removal. No diagnosis and no pain-relief claim.

SIHOO, Black standard, without footrest
Automatic recline resistance appeals to you because the chair changes hands often.

Branch, Original, Pebble / White, no headrest
A padded seat and manual tuning of recline resistance are what you prefer.
Spec by spec
| Spec | SIHOO B300 Pro | Branch Ergonomic Chair | In practice |
|---|---|---|---|
| Seat contact | Mesh | Foam cushion | How many controls a chair has can count for less than the material you prefer. |
| Recline setup | Weight-responsive | Manual tension | With B300 a handover step disappears, and with Branch personal control stays direct. |
| Arm clearance | Flip-up arms | Removable arms with height, width and depth adjustment | Daily clearance is a different workflow from deliberate removal. |
| Lumbar adjustment | Height and depth | Height and removal | Treat projection and contact height as separate matters. |
| Rated capacity | 330 lb | 275 lb | Seat dimensions and comfort are separate from a load limit. |
Trade-offs
Change of plan
Go with SIHOO B300 Pro. Its documented mechanisms let B300 handle both.
Go with Branch Ergonomic Chair. Branch keeps those preferences intact along with the core fit controls.
Decision guide
Easy sharing and parking are required, yet the main user may prefer a familiar cushion and a particular recline tension.
By the numbers
What we found across the office chairs we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| SIHOO B300 Pro |
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| Branch Ergonomic Chair |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Automatic recline resistance appeals to you because the chair changes hands often.
Regular arm flipping or lumbar projection adjustment is a need for you.
See price & reviews on Amazon
A padded seat and manual tuning of recline resistance are what you prefer.
You can work with the adjustable desk-arm position and do not need a daily flip-up movement.
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