FlexiSpot C7 Morpher vs SIHOO M57

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

FlexiSpot

FlexiSpot C7 Morpher

$799.99 – $849.99

SIHOO

SIHOO M57

$319.99

7 years

longer warranty on FlexiSpot C7 Morpher than SIHOO M57 (official terms)

Differences at a glance

FlexiSpot C7 MorpherSIHOO M57

Price: $799.99 – $849.99$319.99
Seat height: 17.72–21.26 in46–55 cm (≈ 18.1-21.7 in)
Seat depth: 16.14–18.7 in18.11 in (≈ 46 cm)
Load capacity: 380 lb330 lb (≈ 150 kg)
Recline: 93–135°Reclines up to 126°
Arms: 5D3D coordinated armrests (up and down, left and right, forward and backward)
Headrest: 135°Headrest adjusts vertically up to 3.9 inches and rotates 45 degrees
Lumbar support: air lumbar supportDual-adjustable lumbar support (vertical and horizontal)
Warranty: 10 years3 years

Which is cheaper, the FlexiSpot C7 Morpher or the SIHOO M57?

The SIHOO M57 is cheaper to start: $319.99 versus $799.99 for the FlexiSpot C7 Morpher at the brand stores (Oct 2026).

Which has a higher weight capacity?

The FlexiSpot C7 Morpher, rated for 380 lb versus 330 lb for the SIHOO M57.

Which has a headrest?

Both: the FlexiSpot C7 Morpher as standard and the SIHOO M57 as standard.