I recently purchased an iPad. The built in camera has an auto-HDR option. I spotted a new Tesla parked on Clyborn Avenue in Chicago and decided to test the HDR option of the iPad camera.
The shooting conditions were difficult, with bright sun, long shadows, shiny metal... Compared with the non-HDR version, the auto-HDR is a considerable improvement. I believe in this version of the iOS, 3 exposures are measured.