Yes, we have tested and can confirm that the USB4 cable is compatible with the new iPhone 15. Keep in mind that the data transfer speed is limited to USB 2.0 speeds (5Gbps) for the iPhone 15 and 15 Plus while the iPhone 15 Pro and Pro Max support USB 3.2 Gen 2 speeds (10Gbps).

Video output and charging is still supported with the cable and the iPhone 15 lineup.