if anyone actually thinks about it , lasswell shurarizedazezerolauda <| sep |> Decipher Activity T r a n s f e rdecipheractivitytransfer . html is exactly what you need . And it ' s free ! What you need to do 1 Back up your old iPhone to iTunes , not iCloud . You need to tick a box to have backups encrypted to have health data backed up . 2 Run Decipher Activity Transfer . It will ask you to pick an iTunes backup . Choose your latest . 3 Decipher Activity Transfer will then make a custom backup containing only your Heath and Activity data and nothing else , meaning you are still setting up your new iPhone as new . 4 Restore your new iPhone with this custom backup . Choose to set it up as a new phone . Don ' t worry it may sound counterintuitive , but that is how Decipher Activity Transfer works . I posted this previously to help someone preserve Apple Watch health data , but it applies to your case too