5 ms·

One of the main focuses of iOS 12 was improving performance across the board, especially for older phones.

• FabHK 8y ago
  And I'm on iOS 11 on the SE, and it works just fine. So 12 should be ok.
  • kmundnic 8y ago
    I'm using iOS 11 on an almost 4 years old iPhone 6, and it works fine for me too.