How to transfer WhatsApp backup from Android to iPhone When you are changing devices from an Android device to an iPhone or vice versa, there are several things that you need to make note of. You are required to transfer your contacts, photos, and other files from your existing device to the new one. When moving on to new devices, it is also important to make sure that your WhatsApp messages are transferred properly. WhatsApp does not offer a method to easily transfer data from one device to another unless both the devices use the mobile application form of the communication platform.