When set to Automatic, Netflix balances the quality of your video with required data usage, which lets you watch approximately 4 hours of video for every GB you stream. When set to Save Data, you’ll get lower-quality video, but you’ll be able to watch about 6 hours of video for every GB you stream. When set to Maximum Data, you’ll get the highest quality video that both your device and the specific video can support. This can result in very high data usage of 3 GB per hour or more. [1] X Research source To avoid potential data overage charges from your cellular provider, it’s best to choose the Wi-Fi Only option when using Maximum Data.
Choosing the Standard option gives you normal-quality video that takes up less storage space on your phone. Choosing the Higher option gives you better video quality that takes up more storage space on your phone.