> Essentially, Smart HDR was choosing the wrong base frame for HDR processing when you took a selfie. Instead of choosing a frame with a short shutter speed to freeze motion and preserve detail, it would sometimes choose a frame with longer shutter speed. The front camera also does not have optical image stabilization, so it takes blurrier shots at the same shutter speed as the rear, stabilized camera. The result is a loss of detail that looks like smoothing on the front camera.
> Essentially, Smart HDR was choosing the wrong base frame for HDR processing when you took a selfie. Instead of choosing a frame with a short shutter speed to freeze motion and preserve detail, it would sometimes choose a frame with longer shutter speed. The front camera also does not have optical image stabilization, so it takes blurrier shots at the same shutter speed as the rear, stabilized camera. The result is a loss of detail that looks like smoothing on the front camera.