The first iPhone Apple called Pro: three color-matched cameras, the Super Retina XDR display, and four hours more battery than the XS.
Released September 20, 2019 · Discontinued October 13, 2020 · From $999 (64 GB, unlocked)

Apple used the word Pro on an iPhone for the first time here. What earned it was the third camera: wide, ultra-wide and telephoto, all 12 megapixels, all color-matched so switching between them mid-video did not shift the image. Night mode came too, and the combination made this the phone that stopped most people carrying a camera. The screen was new. Super Retina XDR, 5.8 inches of OLED at 458 pixels per inch, 1200 nits peak brightness and a claimed two million to one contrast ratio, and it was plainly better than the XS panel next to it. The A13 Bionic ran the whole thing on a battery that lasted four hours longer than the XS, which was the largest single-generation jump Apple had managed. The back was milled from one piece of glass with a matte finish. It cost $999 and shipped September 20, 2019.
The first Pro-branded iPhone drew strong marks for cameras and battery, with reviewers hedging on how much had really changed.