5s use to be a supported device but it's been overwhelmed by GO4 updates and is no longer "Supported"
iOS V4.3.12
Requires iOS 10.0.0 or later (Mavic 2 Pro/Zoom requires iOS 10.0.2 or later).
Compatible with iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7, iPhone 6s Plus, iPhone 6s...