Transferring your content is important. We can provide the answers you need right here. The answer to your question depends on a few factors. How much data is being transferred? This included picture, videos, contacts and more. The next is if you are using cellular data or Wi-Fi. If it's cellular, you'll want the fastest connection possible. That would be in the following order of technology. 5G,4G LTE and 3G. If you are using Wi-Fi, your download speeds will be another factor. Does this help you?