If you're seeking an ergonomic chair around the $140 price point and prioritize space-saving, the BESTFAIR chair is an excellent choice. Ideal for home office users with compact setups, its flip-up armrests (1D) allow you to tuck the chair fully under your desk, maximizing room. It suits users up to 300 lbs who appreciate basic lumbar support that targets the spine's curve and a breathable mesh material for comfort during standard work hours, even if advanced lumbar/armrest adjustments aren't critical.

The Ergalithic chair is perfect for individuals prioritizing extensive adjustability, durability, and a robust design for extended use. At a slightly lower price point of $129.99, it offers superior value with a 12-year warranty and a higher 350 lbs weight capacity. Ideal for taller or heavier users, or anyone desiring ultimate customization with 4D armrests and adjustable lumbar support for prolonged comfort. If precise ergonomic positioning for long hours is key, this chair is a strong contender.