The hinge mechanism has been refined through six generations of engineering and it's great: Samsung reduced the crease visibility significantly compared to previous models, though you'll still feel it slightly when running your finger across the center. The JetBlack finish resists fingerprints better than glossy alternatives, and the Armor Aluminum frame adds durability without excessive weight. Samsung rates this phone for 200,000 folds which translates to roughly five years of opening and closing the device 100 times daily.