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How to Use a Blue Light Filter on Your Phone

Does your head hurt? Do you have trouble sleeping? Believe it or not, your smartphone can be to blame. Scientists believe that electronic devices that emit blue light may contribute to these problems. Fortunately, there are some easy ways to eliminate this blue light so that you can rest more easily.

Whether you have an iPhone or an Android device, we’ll show you what you can do right now to reduce the amount of blue light you receive from your various devices.

How to use Night Shift on your iPhone

IOS’s Night Shift feature allows you to filter out blue light and adjust the color warmth on your screen. It automatically adjusts the colors of your screen at sunset to your location, using geolocation and your phone’s clock to determine it. When it’s morning, it will revert your display to its usual settings. You can activate Night Shift by opening Control center and pressing Brightness adjustment. Then tap on the symbol that looks like a small sun. Otherwise go to Settings> Display and brightness> Night Shift.

We recommend that you adjust the Night Shift settings here by toggling Schedule and enter the hours for it to turn on and off automatically. Ours is on from 10 p.m. to 7 a.m. If you don’t program a time, it will automatically turn on at sunset and turn off at sunrise. You can also activate it manually overnight.

How to use the blue light filter on your Samsung Galaxy

The majority of Samsung Galaxy phones – like the new Galaxy S21 – now have a blue light filter option. The fastest way to turn it on is to pull down your notification shadow and swipe down again to access your quick settings. One of them is called Blue light filter, and you can press to turn it on and off. Otherwise, look in Settings> Display> Blue light filter.

You can change the opacity with a slider and you can also press Activate as expected then choose From sunset to sunrise or Personalized calendar if you want to specify your own preferred times.

How to use Night Light on your Pixel phone

On Google Pixel phones and some other stock Android devices running Android 8.0 Oreo and later, you can find a blue light filter option by going to Settings> Display> Night light.

Press on Schedule to specify your own hours and change the filtering level with the Intensity slide. You can also press Lights up from sunset to sunrise to automatically turn it on at night and turn it off in the morning.

How to filter blue light on other Android phones

Different manufacturers have come up with different names for their blue light filters, but the majority have one. You will usually find a quick setting option in your notification shade and scheduling options in Settings> Display.

LG calls him Comfort view, HTC and OnePlus call it Night mode, Huawei calls it Eye care, Motorola is calling it Night display, and Xiaomi calls it Reading mode.

What if your phone doesn’t have a built-in blue light filter?

If you’re unlucky enough to have a smartphone without a blue light filter, or if you don’t like the option you have, you can always try a third-party app instead.

Our favorite blue light filter app on Android is Twilight. It lets you configure a number of different profiles to schedule on and off times, and it can detect your location to automatically turn the blue light filter on and off at sunset and sunrise.

If you’re using your laptop or computer late at night, learn how to use a blue light filter on PC or Mac.

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