Main trade-off
SIHOO B300 Pro
The linked B300 Pro is the standard version without a footrest. Its seat is narrower than C300 Pro V2.
Head-to-head
SIHOO B300 Pro vs C300 Pro V2: B300 shortens farther, C300 adds seat width and tilting arm pads
The short answer
Choose B300 Pro when the shorter minimum seat depth or flip-up arms solve the fit problem. B300 starts at 16.5 inches of seat depth, compared with 16.9 on C300 Pro V2. Choose C300 Pro V2 when its 20.5-inch seat width and rear-pad tilt are useful for your seated position and handheld devices. B300’s seat is 19.1 inches wide. Both reach 18.5 inches of depth and use weight-responsive recline. Neither linked standard package includes a footrest.
Before you choose
The reasoning and the trade-offs
More seat width can come with the wrong minimum depth
A household can include a user who wants more hip room and another who needs a shorter seat. C300 Pro V2 adds 1.4 inches of published width, but its minimum depth is 0.4 inches longer. B300 reaches the same 18.5-inch maximum while retracting farther. Try the shorter user first if both will share the chair. Width and depth are separate fit constraints, and a larger-looking seat does not solve both automatically.
What this is based on
20.5 minus 19.1 equals 1.4 inches of seat width. 16.9 minus 16.5 equals 0.4 inches at minimum depth. Published seat width is not inner-arm clearance.
Main trade-off
SIHOO Doro C300 Pro V2
The 16.9-inch minimum depth may be too long even when the extra seat width is welcome.
SIHOO B300 Pro
- Choose it for
- The seat needs to shorten below the C300 Pro V2’s published 16.9-inch minimum.
- Flip-up arms and a lower chair weight matter for your room setup.
- Main trade-off
- The linked B300 Pro is the standard version without a footrest. Its seat is narrower than C300 Pro V2.
SIHOO Doro C300 Pro V2
- Choose it for
- You need the additional published seat width and have checked arm spacing too.
- Tilting the rear arm pads helps you find support while holding a controller or phone.
- Main trade-off
- The 16.9-inch minimum depth may be too long even when the extra seat width is welcome.
About this comparison
B300 Pro vs C300 Pro V2 for a shared desk, controller use and limited space. Compare the fit ranges, arm movements and weight that change daily handling.
These SIHOO mesh chairs combine adjustable depth, automatic resistance and movable arms. The useful comparison is the size and movement each user needs, rather than six-dimensional versus eight-dimensional labels.
Winner by situation
Start with what you need it to do
Need a minimum depth below 16.9 inches
B300 reaches 16.5 inches. Try the real fit.
- SIHOO B300 Pro
- Better fit
- SIHOO Doro C300 Pro V2
- Caution
Need the wider published seat
C300 lists 20.5 inches versus 19.1. Check arm spacing separately.
- SIHOO B300 Pro
- Caution
- SIHOO Doro C300 Pro V2
- Better fit
Want rear-pad tilt for handheld devices
C300 documents that specific arm movement.
- SIHOO B300 Pro
- Caution
- SIHOO Doro C300 Pro V2
- Better fit
Need to plan a staircase installation
B300 is lighter by the published figures, but both need safe handling.
- SIHOO B300 Pro
- Better fit
- SIHOO Doro C300 Pro V2
- Caution
What matters in practice
The differences that matter
More seat width can come with the wrong minimum depth
A household can include a user who wants more hip room and another who needs a shorter seat. C300 Pro V2 adds 1.4 inches of published width, but its minimum depth is 0.4 inches longer. B300 reaches the same 18.5-inch maximum while retracting farther. Try the shorter user first if both will share the chair. Width and depth are separate fit constraints, and a larger-looking seat does not solve both automatically.
How we reached this conclusion
20.5 minus 19.1 equals 1.4 inches of seat width. 16.9 minus 16.5 equals 0.4 inches at minimum depth. Published seat width is not inner-arm clearance.
Clearing the desk and supporting a controller are different arm jobs
B300’s flip-up arms can clear an apron or make room at the side. C300 Pro V2 can also swing its arms aside, so desk clearance alone does not prove B300 is uniquely suitable. C300 adds rear-pad tilt that may help someone holding a controller or phone with the forearms angled upward. Try that position while seated. An eight-dimensional label does not guarantee better support, but the particular pad movement is relevant to a work-and-gaming desk.
How we reached this conclusion
Documented arm movements crossed with desk clearance and handheld-device use. No grip-strength, fatigue or comfort benefit is claimed.
The heavier chair affects stairs more clearly than it affects rolling
If the chair must go upstairs to a bedroom office or move during a house move, the published 15.94 lb weight difference is worth planning around. It does not tell us how hard either chair rolls across carpet. Caster type, floor surface and load also matter there. B300 reduces the mass to handle compared with C300 Pro V2, but both are bulky assemblies. Arrange suitable help rather than treating the lighter specification as permission to lift alone.
How we reached this conclusion
59.64 minus 43.7 equals 15.94 lb, using manufacturer chair weights rather than carton mass. No rolling-force or individual lifting-capacity inference.
Choice A
SIHOO, Black standard, without footrest
B300 Pro
The seat needs to shorten below the C300 Pro V2’s published 16.9-inch minimum.
- Best matched use
- The seat needs to shorten below the C300 Pro V2’s published 16.9-inch minimum.
Checked facts
- Seat depth: 16.5 to 18.5 inches
- Seat width: 19.1 inches
- Arm movements: Six-dimensional arms with flip-up clearance
- Chair weight: 43.7 lb
Choice B
SIHOO, Black, Standard
Doro C300 Pro V2
You need the additional published seat width and have checked arm spacing too.
- Best matched use
- You need the additional published seat width and have checked arm spacing too.
Checked facts
- Seat depth: 16.9 to 18.5 inches
- Seat width: 20.5 inches
- Arm movements: Eight-dimensional arms with rear-pad tilt and swing-away movement
- Chair weight: 59.64 lb
Meaningful differences
What changes the fit
| What changes | SIHOO B300 Pro | SIHOO Doro C300 Pro V2 | Why it matters |
|---|---|---|---|
| Seat depth | 16.5 to 18.5 inches | 16.9 to 18.5 inches | B300 adds 0.4 inches at the shorter end, with the same published maximum. |
| Seat width | 19.1 inches | 20.5 inches | C300 adds 1.4 inches of published seat width, not necessarily the same gain between the arms. |
| Arm movements | Six-dimensional arms with flip-up clearance | Eight-dimensional arms with rear-pad tilt and swing-away movement | Both can clear space. C300’s pad tilt is a separate handheld-device option. |
| Chair weight | 43.7 lb | 59.64 lb | C300 is 15.94 lb heavier by the manufacturer figures. This is not a rolling-effort measurement. |
| Recline | Weight-responsive, 105/120/135-degree locks | Weight-responsive, 105/120/135-degree locks | Automatic resistance and the listed angles do not independently justify the larger chair. |
What you give up
Every choice has a cost
If you choose SIHOO B300 Pro
- A 43.7 lb chair can still be awkward to lift. Do not treat lower weight as a safe-handling guarantee.
If you choose SIHOO Doro C300 Pro V2
- Manufacturer chair weight is 59.64 lb. Plan assembly and stair handling separately from everyday rolling.
Recommendation switch
The decision flips if...
The shorter minimum seat setting decides fit
Choose SIHOO B300 Pro. B300 retracts 0.4 inches farther.
Seat width and upward forearm support are the priorities
Choose SIHOO Doro C300 Pro V2. C300 offers the wider seat and tilting rear pads, subject to a fit trial.
What matters in practice
Before you choose
You want a chair roomy enough for one user without making the seat too long for the other, and it must also work for evening gaming.
What this comparison cannot tell you
- No medical, comfort or durability ranking. Published dimensions are not a guarantee of usable inner clearance.
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.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| SIHOO B300 Pro |
|
| |
| SIHOO Doro C300 Pro V2 |
|
|
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 B300 Pro
The seat needs to shorten below the C300 Pro V2’s published 16.9-inch minimum.
Flip-up arms and a lower chair weight matter for your room setup.
See price & reviews on AmazonSIHOO Doro C300 Pro V2
You need the additional published seat width and have checked arm spacing too.
Tilting the rear arm pads helps you find support while holding a controller or phone.
See price & reviews on AmazonLinks open in a new tab.