20GB ought to do it. With 20GB you'll be able to download 16 apps, stream 20 hours of video & 24 hours of music, browse online for 20 hours and send about 40,000 emails per day (not that you would actually want to do that).

For the average smartphone user in 2026, 20 GB of data is generally sufficient, but it depends heavily on your video consumption habits. If you primarily use your phone for web browsing, social media (scrolling text and photos), GPS navigation, and music streaming, 20 GB is a very comfortable allowance. However, video is the "data killer." Watching YouTube or Netflix in High Definition (1080p) can consume about 3 GB per hour. If you stream HD video for just one hour every day, you will exhaust your 20 GB limit in less than a week. Conversely, "Standard Definition" (480p) uses only about 0.5 GB per hour, allowing for 40 hours of viewing. For remote workers, 20 GB allows for roughly 25 to 30 hours of video calls on Zoom or Teams. If you have consistent access to Wi-Fi at home and work, 20 GB is more than enough for "on-the-go" use. But if you are a "power user" who downloads large files or uses your phone as a mobile hotspot for a laptop, you might find a 50 GB or Unlimited plan more suitable for your needs.