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Tips for using Google Duo

You can use Google Duo to make video calls to your family, friends, and anyone else who uses the app. Your calls are encrypted, which means they're private to you and the person you're calling.

Download the latest version of Duo for Android devices or Duo for iPhones.

If you're just getting started with Duo, here are some tips for how to use the app and help you get the most out of your experience.

Make calls to other kinds of phones

You can make video calls to all your friends on smartphones with Google Duo, even if you don't have the same kind of phone as they do. You just need to make sure your contact has Duo installed.

See a video preview with Knock Knock

When you call a contact using Duo, the other person can see live video of you while the phone rings if they have you as a contact. You won't be able to see the person you're calling until they answer.

You can also turn Knock Knock off.

Use less data

If you can't connect to a Wi-Fi network, Duo automatically lowers your connection to 1Mbps. If you have plenty of data on your mobile plan and don't want to limit the quality, you can turn off Limit mobile data usage in Settings.

Block numbers

For unwanted phone calls, you can also block a phone number from calling you.

Get great video and audio quality

To make sure you're looking and sounding your best for a video call:

  • Make sure you have lots of light. For the best lighting, put two lights behind your device facing you and one behind you.
  • You can switch camera views to show yourself or what you're looking at in front of you. If the camera points to your face, hold your device at eye level to help others see your face.
  • Make sure nothing (ex: your finger) is blocking your device's camera or microphone.
  • Connect to Wi-Fi before calling. Using Wi-Fi will save your data usage and also could be a better video connection. If you can't, turn on your data.

If you're having problems with your video call, try fixing your call quality.

Caroline author photo

Caroline is a Google Duo expert and author of this help page. Help her improve this article by leaving feedback below.

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