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

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

FlexiSpot

FlexiSpot Premium Ergonomic Office Chair (C7 Max)

$549.99 – $599.99

SIHOO

SIHOO B100

$199.99 – $259.99

7 years

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

Differences at a glance

FlexiSpot Premium Ergonomic Office Chair (C7 Max)SIHOO B100

Price: $549.99 – $599.99$199.99 – $259.99
Seat height: 18.5–20.9 inSeat height adjustable from 18.3" to 21.9"
Load capacity: 300 lb; 350 lb330 lb (≈ 150 kg)
Recline: 93–135°Three lockable angles: 110°, 125° and 135°
Arms: 5DFlip-up 2D armrests
Headrest: 3D; 2.36 in, 135°Wide 2D adjustable headrest
Lumbar support: adjustable self-adaptive dynamicFloating sacral cushion (targeted sacral support)
Warranty: 10 years3 years

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

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