When you replace your old iPhone with a new iPhone, one thing you’ll need to do is transfer your information from your old iPhone to your new one. If your old iPhone is running iOS 11, you can use Quick Start, a new iOS 11 feature that makes the transfer easy. Just turn on your new iPhone, set it next to the old one, and tap Continue when asked whether you want to use your Apple ID to set up your new iPhone. You will see an animation on your new iPhone for you to scan with your old iPhone. Once you’ve done that, follow the rest of the instructions to enable Touch ID or Face ID and then restore your data and settings from your most recent iCloud backup (you can update the backup first if necessary). Leave the two iPhones next to each other while data is being transferred, and if possible, keep the new one plugged in and on Wi-Fi after setup so it can download your apps, photos, and music from Apple’s cloud-based services. It may seem like a lot of steps, but Apple will steer you through them. It’s all pretty easy. Hope it helps!