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The blue light filter, as the name suggests, filters out the blue light, which is supposed to be easy on the eyes and help us fall asleep better. The blue light filter can also be used on the Samsung device. It can be activated manually or automatically, and the intensity can also be changed.

Note: These instructions show how to manually switch the blue light filter on/off.

Android 11 | One UI 3.0
Step 1: Tap on  Settings
Step 2: Tap on  Display
Step 3: Enable or disable  Eye comfort shield
  1. Tap on Settings
  2. Tap on Display
  3. Enable or disable Eye comfort shield
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Samsung Instructions