It’s somewhat surprising for Apple to add functionality on an external accessory like this, but if there’s any phone it makes sense for, it’s the iPhone 11; it’s probably the biggest leap in iPhone image quality since portrait mode was introduced. The button is able to directly launch the camera app whether the phone is locked or unlocked. One quick press will take a photo once in the app while holding the button will capture a video. Apple doesn’t specify exactly how big the batteries in the cases are, but says each should provide “up to 50 percent longer battery life.” This is particularly notable considering Apple made major gains on battery life this year – finally challenging Android flagships in this regard. Otherwise, it retains all your iPhone functionality, including support for lightning accessories, wireless charging, and fast charging. The cases will set you back $129. Via MacStories