HDR stands for "High Dynamic Range" and is available on every Samsung device. If you want to take pictures where there is a high difference in brightness (for example, a lot of sunlight or landscapes), HDR on the Samsung device can help to prevent over- and underexposure by means of software. On Samsung devices, HDR is turned on by default, but is only used depending on the situation. In the camera settings, HDR can be deactivated or permanently activated.

Android 10 (One UI 2.0)
Step 1:  Open the  Camera -App
Step 2:  Open the  Settings
Step 3:  Enable or disable  Auto HDR
  1. Open the Camera-App
  2. Open the Settings
  3. Enable or disable Auto HDR

Samsung Instructions