It seems something has changed with the S20 compared to the S9/S10. Using the CameraConstrainedHighSpeedCaptureSession Camera2 APIs to capture video previously worked with S9/S10, but with the S20 I am getting camera capture session state listener errors and a camera state listener camera device errors. Outside of my original code which is similar to many java examples around the internet on this API, I have tried to run this sample written in Kotlin (https://github.com/android/camera-samples/tree/master/Camera2SlowMotion) and it will not run on the S20 either. I have not tested this sample against a S9 or S10 yet, but I will try to do that in the coming days. Has anyone had success using the high speed recording API on the S20?