If you're on the fence between these phones, opt for the more affordable iPhone 11.
This may be the last year of the "notch" — that blocked-out portion of your iPhone's display that allows room for the front-facing camera system — and you might want to upgrade once the iPhone adopts a cleaner look. Plus, 5G support is rumored for next year's iPhones, and you might want a piece of that action in just 12 months from now.
Unless you haven't upgraded in years and you desperately want the best Apple can offer, most people are going to be very happy with the standard iPhone 11. It means you can spend less money now on a quality phone, and save more money for the future when you're really ready to invest in an all-new experience.
You can learn about Apple's new iPhones, and preorder them, on Apple's website. All the new iPhone 11 models will release to the public on Friday, September 20.