I can transfer contacts from my old Android phone to a new one using either Gihosoft Mobile Phone Transfer software, which allows transferring contacts and other data over USB between the phones, or by manually exporting contacts to the SIM card from the old phone and then importing them from the SIM card on the new phone. Gihosoft Mobile Phone Transfer is easy to use - I simply download, install, and run the software on both phones to select and copy contacts and other data over to the new device.