The above table assumes that your smartphone or mobile broadband device supports the features necessary to achieve that speed.

Due to the nature of internet access services provided over mobile networks and geographical, topographical, built environments and other factors affecting the variability of data speeds, the estimated maximum speeds above are not guaranteed and may not be available at all locations and within all environments.

Theoretical maximum 4G and 5G speeds provided are also only available where Three has upgraded the site and deployed all of our 4G and 5G spectrum. This number of sites will increase over time.

The upload and download speeds achieved by SMARTY customers may also vary due to a number of factors. These factors are outlined in our terms & conditions