Honestly I don't even trust a used iPhone anymore. If it's not iCloud-locked, it might be SIM-locked. Had to jailbreak the last one I bought, never again. But

Honestly I don't even trust a used iPhone anymore. If it's not iCloud-locked, it might be SIM-locked. Had to jailbreak the last one I bought, never again. But yeah I'd trust a used Android phone even less. They're basically garbage past the first owner, or maybe even before.