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The vivoz5x's reverse charging can charge mobile phones, not only Android phones can be charged, but also Apple phones. If it is to charge an Android phone, generally use the OTG to USB data cable, if it is to charge an Apple phone, you need to connect a USB to lightnig interface data cable in the middle, and then connect to the phone, but the charging efficiency is relatively slow, and the utility is relatively limited.
Yes, it won't do any harm.Vivo chargers or other mobile phone chargers can basically provide 5V1A or 2A power, and most mobile phones can be compatible with charging. iPhone charging does not set a lock code, as long as it is 5V DC power supply can be used.