The data from the Chromecast image stream could end up being a large percentage of someone’s monthly data allowance. If you’ve got 2-3 Chromecasts sitting in your home on multiple TV’s you could see 30-40GB or more of your data be used up without watching anything at all on your Chromecast. The images downloaded are high resolution files and over the course of a month, it’s possible for more than 15GB or more of your data to be downloaded, just by leaving your Chromecast on and sitting there idle in your home. It’s basically an image stream that never ends. Instead they are actually downloaded from the Google servers, sometimes as often as every 5 seconds. The wallpapers that you see on your TV screen are not locally stored inside your Chromecast. When a Chromecast is idle and nothing is being streamed to it, you may have noticed that on your TV screen that there is a nice wallpaper that changes every few seconds and also the weather is displayed too. The second way that a Chromecast uses data is actually when idle. If you want to learn more about saving data when using streaming services, see our data saving guides here. The whole time you are watching, your Chromecast will be streaming the content using your Wi-Fi network and this will use your data.

The first way is if you are using it to watch videos from streaming services like Netflix, Stan or YouTube on your phone or tablet. But what many people don’t realise is that their Chromecast actually uses a large amount of data (10GB+ per month) and for people on small data plans, things can add up quite quickly without anyone knowing.Ī Chromecast consumes data in two ways.

Many people even have one Chromecast connected to every TV in their home and as they move around between each room, they simply stream their preferred content, easily, quickly and fast. People love to use the device to stream movies and images from their phones or tablets to their TV screens.

In recent years a little streaming device known as the Chromecast has become one of the most common household items inside many homes around Australia.

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