If you get a new iPhone, the Loop app will need to be rebuilt onto the iPhone. Loop will not restore onto the new phone from a saved backup.
To install Loop onto the new iPhone just take a few simple steps.
Pair your new iPhone with your existing Apple Watch before rebuilding Loop onto the new iPhone.
Follow the directions in the Updating Loop page. The only difference in steps for installing on a new iPhone vs. updating on an old iPhone is that you will be prompted to
Register Devicein the signing targets area because the new iPhone needs to be registered with your developer account. Easy, single button press in Xcode's target area will complete the registration.
You will need to input your Loop settings and configurations from scratch in the new iPhone.
You will need to slide the RileyLink slider "off" in the old iPhone in order for it to pair with the new iPhone's Loop app.