Fit before features
Seat height and depth should let your feet rest flat and leave a small gap behind your knees. Prioritise fit and adjustability over features you may not use.
Adjustments that count
Prioritise adjustable seat height, armrests and lumbar support. Tilt tension and lock are useful if you lean back often.
Materials and warranty
Compare the specific materials and construction; comfort varies by chair and person. Read the warranty terms and the seller's return policy before you buy.
This guide offers general information, not professional advice. Check official sources before making decisions.