Blue light filter

When the Blue light filter is turned on. It makes your eyes comfortable to use your smartphone. I prefer at night to use this blue light filter option. It is easy to watch the display without any difficulty to our eyes. We can increase and decrease the opacity of the blue light filter in the settings. I thanks to Samsung for this feature. Good technology to save our eyes from being strain. Thank you so much Samsung. Love from Rehmanphotomind.