For kids’ Junior Data plans:

Data is split between two speed tiers:

As one tier is used up, speeds shift automatically to the next. Essential functions like calls and location stay active throughout.

For adult Balance plans:

Data starts at high speed and gradually shifts to slower speeds as you use more – High-Speed Data → Cruise Data → Settle Down Data → Overdid It Data. The slowdowns are gentle nudges, not cutoffs, so essentials stay working while distracting content gets harder to enjoy.