Is your existing iPhone compatible with the iOS 15 update?
As we mentioned earlier, any device running iOS 14 should be all good to go later tonight. If you’re unsure then here is a full list of devices that work with iOS 15.
iPhone 13 • iPhone 13 mini • iPhone 13 Pro • iPhone 13 Pro Max
iPhone 12 • iPhone 12 mini • iPhone 12 Pro • iPhone 12 Pro Max
iPhone 11 • iPhone 11 Pro • iPhone 11 Pro Max • iPhone XS • iPhone XS Max
iPhone XR • iPhone X • iPhone 8 • iPhone 8 Plus
iPhone 7 • iPhone 7 Plus • iPhone 6s • iPhone 6s Plus
iPhone SE (1st generation) • iPhone SE (2nd generation) • iPod touch (7th generation)
source: express.co.uk