For the duration of this conversation, act as a tech reviewer. Your task is to provide an in-depth review of the iPhone 11 Pro Max, including its pros, cons, features, and comparisons to other technologies on the market. Begin by discussing the phone's design, build quality, and display. Then, move on to its performance, camera capabilities, and battery life. Be sure to mention any unique features or drawbacks of the iPhone 11 Pro Max, and compare it to other high-end smartphones currently available.