So the new iPhone 7 black variant has a nice aluminum body with matte finish. the iPhone 7 is also now waterproof with IP67 rating. the 12mp rear camera with the led flash are present on the back, the power button with the I’m tray are present on the right side, The iPhone is a great flagship smartphone with great specs, performance and camera, it might not be that much worth to upgrade from an iPhone 6 or 6s but if you want the better camera, waterproofing you can definitely go for it