Chinese smartphone maker Oppo announced the Find N5, the world’s thinnest foldable smartphone. However, as is often the case with Chinese phones, American consumers are out of luck. When folded, the Oppo Find N5 is just 8.93 millimeters (0.35 inches) thick. For comparison, the OnePlus Open, an impressive and sleek foldable in its own right, is 11.7 millimeters (0.46 inches) thick when folded. The Google Pixel 9 Pro Fold is 10.5 millimeters (0.41 inches), the Samsung Galaxy Z Fold 6 is a beefy 12.1 millimeters (0.48 inches), the Honor Magic V3 is 9.2 millimeters (0.36 inches), and the Vivo X…