Sihoo M18 Ergonomic Office Chair vs Staples Carder Mesh Back

The Sihoo M18 is the more adjustable chair: a headrest, a lumbar pad that moves in four directions, 126° recline and a 330 lb rating. The Staples Carder is a simpler mesh-back task chair with a swivel base and adjustable arms, and it is lighter and easier to move around. Reviewers of the M18 praise the lumbar support and headrest for long desk sessions but note the seat foam is firm and the chair is heavy to assemble. The Carder gets credit for breathable mesh and simple setup, but owners say its padding and back support are basic. Buy the M18 for all-day ergonomics; buy the Carder for light, short sitting.

• Choose the Sihoo M18 if you sit for long stretches and want a headrest, adjustable lumbar support and a real recline.
• Choose the Staples Carder Mesh Back if you want a light, simple mesh task chair for short sessions and occasional desk work.