Hello,
Array returned by + [ARFaceTrackingConfiguration supportedVideoFormats] contains only a single supported format with 1280 x 720 resolution. While for ARWorldTrackingConfiguration +supportedVideoFormats reports two formats: with 1920 x 1080 and 1280 x 720 resolutions.
I opened a bug report, however it was closed as a duplicate.
Will the higher resolution be supported in future releases of iOS/ARKit?