https://www.theverge.com/2017/9/13/16297892/apple-iphone-8-plus-x-price-features-comparison

Yesterday, Apple announced the iPhone 8, 8 Plus, and X specs, pricing, release dates, and we got to try them out. But which of these three phones is right for you? It depends on your hobbies and daily activities, of course, but I’ve broken it down to what’s most worth it depending on what you’re looking for. If you are in desperate need of a phone immediately, it’s important to note that the iPhone X won’t be out until November 3rd, and the iPhone 8 and 8 Plus come out September 22nd, so you might settle for an iPhone 8 or have to tide yourself over with a cheaper iPhone 7 Plus in the meantime.

First, let’s consider the iPhone 8 compared to its predecessor. The iPhone 8 offers some improvements to the iPhone 7, but if you just bought an iPhone 7 last year, I recommend skipping the 8 this time. It has an all-new glass design, wireless charging capabilities, and an A11 Bionic chip, with faster cores. The battery life in both the iPhone 8 and 8 Plus remains the same as the 7 and 7 Plus, too, but this year’s phones have True Tone display, which changes the screen to look better to your eyes based on ambient light around you.