Streaming is one of the biggest reasons people burn through data. Between Netflix binges, YouTube marathons, and Spotify playlists, it’s easy to wonder: How much data does streaming actually use—and is it different on Wi-Fi vs. mobile data?

Let’s break it down so you know what’s eating your gigabytes and how to manage it.

Streaming on Wi-Fi vs. Mobile Data

  • Wi-Fi: Usually unlimited (you pay a flat monthly fee to your ISP), so you can stream freely without worrying about overage charges.

  • Mobile data: Depends on your carrier plan. Even “unlimited” plans may slow your speeds after a certain threshold.

This means your streaming quality matters more on mobile data than Wi-Fi, since every gigabyte counts.

How Much Data Do Streaming Services Use?

Here’s an estimate of what popular platforms consume per hour:

Service

Low Quality

Standard (SD)

High Quality (HD)

Ultra HD (4K)

Netflix

~300 MB/hr

~700 MB/hr

~3 GB/hr

~7 GB/hr

YouTube

~240 MB/hr

~700 MB/hr

~1.5–3 GB/hr

~7–8 GB/hr

Spotify

~40 MB/hr

~70 MB/hr

~150 MB/hr

N/A

Disney+ / Prime Video

~500 MB/hr

~1 GB/hr

~3 GB/hr

~7–10 GB/hr

Why It Matters More on Mobile

On Wi-Fi, you can stream in the highest quality without consequences (besides maybe slowing other devices in your home). But on mobile data:

  • HD eats gigabytes quickly. Just three hours of 4K streaming could use up to 21 GB.

  • Music streaming adds up. Four hours a day of Spotify in high quality equals ~18 GB a month.

  • Gaming and cloud services use even more. Platforms like Xbox Cloud Gaming can burn through 10–15 GB per hour.

Related: 7 Ways to Save Money on Your Mobile Data Bill

Tips to Save Data While Streaming

  • Adjust video quality: Many apps let you choose playback resolution (e.g., Netflix’s “Data Saver” mode).

  • Download over Wi-Fi: Save movies, shows, or playlists offline before leaving home.

  • Use carrier add-ons: Some providers offer unlimited streaming passes for apps like Netflix or YouTube.

  • Monitor your usage: Check your phone’s data tracker to see what’s eating the most gigabytes.

Final Thoughts

Streaming is fun, but it’s also one of the biggest drains on mobile data. On Wi-Fi, you have the freedom to binge in 4K without worry. On cellular data, you need to be more mindful of how much your apps consume.