How To Turn Off Samsung S21/S21 Plus/S21 Ultra (Full Guide)

Part 1: Turn off Samsung S21/S21 Plus/S21 Ultra in Quick Settings

Since Samsung allows you to turn some basic settins on and off using the Quick settings panel, you can power off your Samsung S21 in Quick Settings, which is probobly the easiest way. Here is the procedure of how to turn Samsung S21 off without buttons.

Way 1: Turn off Samsung S21/S21 Plus/S21 Ultra in Quick Settings

Since Samsung allows you to turn some basic settins on and off using the Quick settings panel, you can power off your Samsung S21 in Quick Settings, which is probobly the easiest way. Here is the procedure of how to turn Samsung S21 off without buttons.

• Swipe down the Quick Settings pane from the top of your Galaxy S21's display.
• Tap on the Power icon in the upper right coner of the pane. It will ask you to power off or restart.

• Tap on "Power off" and wait for the device to turn off.

  

Way 2: Power off Samsung S21/S21 Plus/S21 Ultra Using Buttons

If you want to learn how to turn off Samsung S21 without screen settings pane or password, it is also easy to access the Power Menu on your device using the buttons. Below are steps you can follow.

• Press and hold the Volume down and Side buttons together until the power menu appears onscreen.

• Select the "Power off" option and your Samsung will power off within seconds.

  

In above steps, both Volume down and Side buttons are used to turn off Galaxy S21, then you may ask: Can I turn my Samsung S21 off with only side button. The answer is definitely yes.

Though the side button is set to activate Bixby Voice by default, as mentioned earlier, the new side button on S21 is programmable and you can change it to show the "Power off" menu in your phone's settings. Therefore, you can simply press and hold the side button to power the device down.

Here is how to change side button to power button on Samsung S21:

• Go to Settings.
• Access the "Advanced Features" and tap on Side key. You will find lots of options to assign to the Side button.

• Select the "Power off menu" option under Press and hold.

  

Now you can get to the power menu by simply pressing and hold the side button.

Way 3: Shut off Samsung S21/S21 Plus/S21 Ultra with Bixby

We have outlined how to turn off Samsung S21 with/without password, it's time to introduce annother alternat way to shut off Samsung S21.

Bixby is Samsung's voice assistant like you have Siri for iPhone. You can use voice commands to ask Bixby to do anything. In this case, you can summon Bixby to power off your Android device. Make sure you have set up Bixby voice on your S21.

Here is how to shut off Samsung S21/S21 Plus/S21 Ultra with Bixby:

• Press and hold the Side button to open Bixby, or you can access Bixby through opening the Bixby app.

• When Bixby appears, you can say "Turn off the phone".

  

Your phone will then turn off.