The polar Krypton 001 card key is a contactless access card that cannot normally be copied directly from a mobile phone. This is because the copy of the polar Krypton 001 card key needs to be carried out through a dedicated hardware device, rather than relying on the function of the phone.
However, there are some mobile phone applications that can simulate the functions of contactless access cards so that the phone can be used as an access card or card key. These applications usually need to be compatible with a specific access control system and require the access control system to support the phone's near Field communication (NFC) function. Therefore, if your access control system supports the function of the mobile phone to simulate the card key, and your mobile phone has the hardware to support the NFC and the corresponding application, you can port the information of the polar Krypton 001 card key to the mobile phone and use the phone as the card key. However, it should be noted that this needs to be done with the support of the access control system provider and may require some special authorization or Settings.