Technical Head-to-Head
Featherlite Helix vs The Sleep Company SmartGRID Onyx
Direct side-by-side comparison of Featherlite Helix and The Sleep Company SmartGRID Onyx. Compare adjustment mechanisms, backrest support, dimensions, warranty, and pricing.
Direct Specification Differential & Physical Lab Audit
Side-by-side spec comparison is normalized across identical measurement units (cm, degrees, kg) without merchant bias.
Detailed Specifications Matrix
| Feature / Specification | Featherlite Helix | The Sleep Company SmartGRID Onyx |
|---|---|---|
| Max Weight Capacity | 120 kg | 125 kg |
| Chair Weight | 15.2 kg | 17.8 kg |
| Seat Height (Min) | 430 mm | 440 mm |
| Seat Height (Max) | 520 mm | 530 mm |
| Seat Width | 480 mm | 500 mm |
| Seat Depth | 460 mm | 490 mm |
| Backrest Height | 580 mm | 650 mm |
| Lumbar Support | Curved S-Shape Integrated Spine Contour | 2D Adjustable Lumbar Pad (Height & Depth) |
| Armrest Type | 1D Height Adjustable Armrests | 3D Adjustable Soft PU Arms |
| Headrest Included | No | Yes |
| Gas Lift Cylinder | Class 3 Tested Cylinder | Class 4 Hydraulic Gas Lift |
| Frame Material | Polymer Matrix | Engineered Fiber Mesh Polymer |
| Base Material | Nylon Base | High-Strength Nylon Base |
| Tilt Mechanism | Self-Calibrating Synchro Mechanism | 3-Position Lock Synchro Tilt |
| Max Recline Angle | 120 degrees | 135 degrees |
| Warranty Duration | 3 years | 3 years |