If you're seeking a budget-friendly ergonomic chair under $110 that doesn't compromise on core features, the AreShark is ideal. It's perfect for users prioritizing a highly adjustable 3D headrest, breathable mesh to prevent heat buildup, and quiet casters to protect floors. With a 300 lbs capacity and a 3-year warranty, it offers solid value for everyday home office, task, or light gaming use, especially if advanced armrest or seat depth adjustments aren't critical.

The Ergalithic chair is best for users who require enhanced support and a higher weight capacity for long hours. Its 330 lbs max weight capacity provides superior stability, while the unique 'X' back design ensures robust lumbar support, crucial for extended work sessions. If you need to easily tuck your chair under your desk, the flip-up armrests are a key advantage. This chair suits those prioritizing sturdy construction and specific lumbar support over multi-adjustable armrests or seat depth, willing to spend a bit more for added durability and functionality.