Need a new phone or a replacement SIM for an off-contract device? Need it right away? Want to avoid pesky human interaction? In a mall or airport near you, there may already be a Straight Talk vending machine.

Straight Talk, as you may recall, is a prepaid carrier that exists through a partnership between TracFone and Walmart. They’re a Mobile Virtual Network Operator (MVNO) that can sell you a SIM card that goes in still-locked but off-contract devices from the country’s major carriers. These vending machines offer everything from $300 smartphones to a quick SIM.

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