SIHOO B100 vs FlexiSpot Premium Ergonomic Office Chair (C7 Max)

Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

SIHOO

SIHOO B100

$199.99 – $259.99

FlexiSpot

FlexiSpot Premium Ergonomic Office Chair (C7 Max)

$549.99 – $599.99

7 years

longer warranty on FlexiSpot Premium Ergonomic Office Chair (C7 Max) than SIHOO B100 (official terms)

Differences at a glance

SIHOO B100FlexiSpot Premium Ergonomic Office Chair (C7 Max)

Price: $199.99 – $259.99$549.99 – $599.99
Seat height: Seat height adjustable from 18.3" to 21.9"18.5–20.9 in
Load capacity: 330 lb (≈ 150 kg)300 lb; 350 lb
Recline: Three lockable angles: 110°, 125° and 135°93–135°
Arms: Flip-up 2D armrests5D
Headrest: Wide 2D adjustable headrest3D; 2.36 in, 135°
Lumbar support: Floating sacral cushion (targeted sacral support)adjustable self-adaptive dynamic
Warranty: 3 years10 years

Which is cheaper, the SIHOO B100 or the FlexiSpot Premium Ergonomic Office Chair (C7 Max)?

The SIHOO B100 is cheaper to start: $199.99 versus $549.99 for the FlexiSpot Premium Ergonomic Office Chair (C7 Max) at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO B100, rated for 330 lb versus 300 lb for the FlexiSpot Premium Ergonomic Office Chair (C7 Max).

Which has a headrest?

Both: the SIHOO B100 as standard and the FlexiSpot Premium Ergonomic Office Chair (C7 Max) as standard.