PS-1 features: - Retractable - Can mount phone in different orientations - Arca Swiss base
PC-90II features: - Lightweight compact metallic phone clamp (60g only) - Rubberized Grip - Integrated Arca Swiss plate at the base - 1/4" female threads on bottom surface, and one end of the clamp. - 56-90mm width can accommodate the largest mobile phones even with cases. - Quick release button to extend/retract fast
