Browse your Pixel phone’s large library of ringtones to find the one that’s right for you.
Step 1 of 6
To change your ringtone, press a Volume button.
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To open “Sound & vibration” settings, tap More 
Step 3 of 6
Tap Settings.
Step 4 of 6
Tap Phone ringtone.
Step 5 of 6
Choose a ringtone category.
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After you find a ringtone you like, tap Save.