Switching to a new iPhone does not have to result in data loss if you take the time to perform backups manually. Another solution, which is much more efficient, is to use an application such as iTransGo to migrate contacts, photos, and other such data.
One of the major pluses of iTransGo is related to the list of supported devices. Not just that it facilitates iPhone-to-iPhone transfers, but it can use any other iOS device to perform data transfers. In other words, it also supports iPads alongside iPhones, regardless of the iOS version installed (iOS 8, 9, 10, or 11).
Aiming to keep things as simple as possible, iTransGo only requires iTunes to be installed on your system. It then prompts you to connect the two iOS devices to the local computer via USB. Once you do so, it retrieves the model, the iOS version, and the storage capacity of each of the two devices. No matter the order you connect them in, the source device can quickly become the destination device with the click of a button.
The next step is to explore the contents of the source device. iTransGo displays information regarding the free and the occupied space and allows you to select the types of items you want it to transfer to the destination device. You can choose between messages, contacts, the call history, personal notes, calendars, voice memos, and browser bookmarks.
Moving further, iTransGo proceeds to migrating data to the target device. You should not disconnect any of the devices as it does so since it might result in a failed transfer and data loss. The progress is displayed, and you can choose to stop the operation at any given time.
iTransGo comes in handy if you want to switch to another phone, as it facilitates data migration without effort. Furthermore, it can be used for merging the contents of an iPhone and an iPad, or transfer media files without making use of the iTunes library. On top of that, it promises high speed transfers, with a 128GB data packet done in 5 minutes.