SIHOO B100 review: the budget office chair that gets the basics right

The B100 makes sense because it solves the real budget-chair problem: most listings talk about comfort in soft, emotional language while saying very little about how the chair actually adjusts.

SIHOO at least publishes the parts that let you make an honest decision. That alone puts this chair ahead of a lot of the category.

What stands out on the spec sheet

Four published details do most of the work here:

The adjustable lumbar support matters more than extra padding because back fit is not one-size-fits-all.
The 2D flip-up armrests are useful in smaller home offices where the chair still needs to tuck under a desk.
The 135-degree recline gives you enough range to change posture during a long day instead of locking into one position.
The 330-pound capacity is a stronger credibility signal than the vague weight guidance many competing listings avoid.

The main tradeoff

The B100 is a fit-first recommendation, not a luxury one. If what you want is plush cushioning or a chair that looks more expensive in photos than it feels in daily use, this is the wrong way to shop the category.

This model works better when your priority is a chair that adjusts cleanly and stays practical inside an ordinary desk setup.

When to buy it

Buy the B100 when you want the safest under-$300 starting point for a normal home office. Skip it if you already know you need a taller backrest profile or more armrest range than a basic budget chair usually gives.

If that second case sounds closer to your setup, the better next read is the roundup of the best ergonomic office chairs for tall people. For the broader budget category, start with the roundup of the best office chairs for back pain under $300.

Bottom line

The B100 is here for the same reason the best budget products usually win: it is specific where weaker competitors stay vague. That makes it easier to trust and easier to recommend.

Check the SIHOO B100 on Amazon (paid link) · price shown on Amazon