What is the name of Apple's first iPhone with 5G connectivity?

Apple's first iPhone with 5G connectivity was the iPhone 12.

Apple introduced the iPhone 12 lineup in October 2020, bringing 5G support to the iPhone for the first time. The lineup included the standard iPhone 12, the smaller iPhone 12 mini, the iPhone 12 Pro, and the iPhone 12 Pro Max. All four models used Apple's A14 Bionic chip and supported 5G networks, although exact capabilities varied by region and carrier.

The iPhone 12 also introduced a redesigned flat-edged body, a Super Retina XDR OLED display on the regular model, Ceramic Shield front glass, and MagSafe accessories. A common mix-up is choosing the iPhone 13 because it followed the iPhone 12 and improved battery life and camera features. The iPhone SE was not Apple's first 5G iPhone; 5G arrived in the third-generation iPhone SE in 2022.