Apple is incredibly proud of what they've done with the camera system on the new iPhone 11 and for its new Smart Battery Case, the company is adding a dedicated button that instantly gets you ready to shoot. The camera button works whether you're locked or unlocked and it also works for selfies. As for battery life, you get an additional 50% of battery capacity, wireless charging, high-speed charging via USB-C Power Delivery, and of course, the protection of a silicon case. 

$129, apple.com