Broadband ads lead with download speed — but upload speed quietly determines how smooth your video calls, gaming, and cloud work actually feel.
Download speed is how fast data comes to your device — streaming Netflix, downloading files, loading webpages.
Upload speed is how fast data leaves your device — sending emails with attachments, uploading to cloud storage, video call audio/video, livestreaming, and multiplayer gaming inputs.
Why the gap matters: Many standard broadband packages (especially FTTC) offer heavily asymmetric speeds — for example, 70 Mbps download but only 20 Mbps upload. Full fibre (FTTP) packages typically offer much stronger, sometimes symmetrical, upload speeds.
Where weak upload speed shows up in daily life:
- Video calls freezing or dropping quality, even when download speed tests look fine
- Slow cloud backups (Google Drive, iCloud, Dropbox)
- Laggy multiplayer gaming despite a “fast” download speed
- Livestreaming or uploading content taking far longer than expected
How to check what you actually need:
- Casual browsing/streaming: upload rarely matters much
- Remote work with video calls: look for at least 10-20 Mbps upload
- Content creators, streamers, gamers: prioritise packages with high, ideally symmetrical upload speeds
Bottom line: When comparing packages, don’t just look at the big download number — check the upload speed too, especially if calls, gaming, or cloud work are part of your daily routine.