You can use the mnemonic/private key/keystore to move imToken to your new phone. 

Step by step instructions:

  1. Download imToken on the new phone via Google play or App store
  2. Export the mnemonic/private key from the old phone.
  3. Recover your wallets by importing the mnemonic/private key on the new phone.
  4. If you have “Imported/created wallet” other than the identity wallet, please click "My Profile" - "Manage your wallet" - "Add Wallet” and import the mnemonic/private key of the “Import/create wallet”
  5. Check whether the wallet addresses on the old and new phones are identical
  6. Done!