5G: 5G is still developing. Not all devices & signals are compatible; may not support 5G tethering; check device specs. Coverage not available in some areas. While 5G access won't require a certain plan or feature, some uses/services might. See Coverage details, Terms and Conditions, and Open Internet information for network management details (like video optimization). If you cancel your line before receiving 24 bill credits, you may owe up to the full value of your device ($799.99 – Samsung Galaxy S21 5G 128GB); if canceling your account, you can contact us first to instead make discounted monthly balance payments. Tax on pre-credit price due at sale. Limited-time offer; subject to change. Qualifying credit and service on a Plus plan required. If you have cancelled lines in past 90 days, you may need to reactivate them first. $10 SIM card, and, in stores & on customer service calls, $20 assisted or upgrade support charge may be required. $799.99 via bill credits; must be active and in good standing to receive credits; allow 2 bill cycles. May not be combinable with some offers or discounts.