The Fold 4 features Snapdragon 8+ Gen 1 chip while Fold 3 features Snapdragon 888 chip. Fold 4 also features a 50MP primary camera and a 3x optical zoom 10MP telephoto lens. In contrast, Fold 3 features a 12MP primary camera and a 2x optical zoom 12MP telephoto lens. See the full specs comparison between Fold 3 and Fold above in the article above.