Q: can I go from a 6s to a 4s?
My 6s took a swim, but I have a perfectly good 4s. I know the sim cards are different size, but what else will be an issue in down grading? ie will I not be able to use certain apps because the 4s won't be able to handle the new ios? It currently has 6.1.3...how would I just wipe off what is currently stored on there and put my phone numbers and old texts and voice mail? Thanks!
Posted on Sep 19, 2016 12:12 PM
If its really a 4s, it can be updated to iOS 9, which means as long as you have a backup from your iPhone 6 made on iOS 9 it can be restored to the 4s once its upgraded, and provided there is enough space on it to accept the backup from the 6s.
If you can update the 4s to iOS 9. It should be able to run all the Apps your 6s could just maybe a little slower.
Restore your iPhone, iPad, or iPod touch from a backup - Apple Support
Posted on Sep 19, 2016 12:16 PM