Branch Ergonomic Chair Pro vs Sihoo M18 Ergonomic Office Chair

Buy the Ergonomic Chair Pro if you want the most adjustable seat here: 14 adjustment points, 5D armrests, forward seat tilt and a removable two-way lumbar support, backed by a 7-year warranty. Buy the M18 if you are a heavier or taller user who wants a headrest and a deep recline out of the box, with a 330 lb capacity and a 4.9 rating across far more reviews. The Pro is the more configurable chair and the better long-term buy for mixed desk work; the M18 is the sturdier, simpler all-rounder for lounging and bigger frames.

• Choose the Ergonomic Chair Pro if you sit at a desk for hours and want fine-tuned fit, forward tilt and a long warranty.
• Choose the M18 if you weigh more, want a headrest and recline built in, and prefer a padded seat to mesh.