Limited-time offer; subject to change. 5G device req'd to access 5G network.  Data available for 3 monthly cycles for approximately 90 days. During congestion, customers on this plan using>50GB/mo. may notice reduced speeds until next monthly cycle due to data prioritization. Video typically streams on smartphone/tablet in SD quality. Tethering not available. Not for international use.  Active non-T-Mobile service required; your carrier's terms also apply. You may need to upgrade when you switch to get full coverage. Coverage not available in some areas. Not for international use. See Network Management Policies and Terms and Conditions (including arbitration provision) at T-Mobile.com for additional information.