A3473

iPhone 18 Pro Max (U.S.) (iPhone19,3) - Front view

iPhone 18 Pro Max (U.S.)

iPhone19,3

A3473
View Firmware Signing Status Downgrade Status
Quick Info
Earliest Firmware
iOS 27.0
September 14, 2026
Latest Firmware
iOS 27.0
September 14, 2026
Total Firmware
1 release
Support Span
0 days
About model A3473

The model number A3473 belongs to the iPhone 18 Pro Max (U.S.) (device identifier iPhone19,3). Apple assigns multiple model numbers to each device for regional and connectivity variants, so one device usually carries several of them.

How do I find the model number on my device?

Open Settings > General > About and read the Model Number field. The number is also printed in the fine print on the back of the device and, on some models, on the SIM tray. Our model identification guide walks through every method.

Which iOS versions can the iPhone 18 Pro Max (U.S.) run?

iOS 27.0 through iOS 27.0, across 1 releases spanning 0 days. See the full firmware list on the device page.