When sourcing super-thin stabilizers, especially for camera or smartphone use, the payload capacity is the most critical factor; it must support your device weight despite the stabilizer's slim profile. Look for brushless motor technology which provides silent and smooth stabilization. Additionally, verify the battery energy density, as super-thin designs often have limited space, making high-capacity lithium-polymer batteries essential for achieving a 6-10 hour operating time. Ensure the thickness does not exceed 35mm-45mm when folded for true portability.