Running Beta might not reflect the true battery impact on the device. But 4x mor...

microtonal · on Sept 10, 2013

I think the grandparent is speaking of iOS 6. iOS 7 has iPhone 4 as the minimum requirement.

frank_boyd · on Sept 10, 2013

Yes, version 6.1.3 to be precise.

Just don't do it.

slantyyz · on Sept 10, 2013

Hell, I would add that you shouldn't do it on an iPhone 4.

Thankfully, my wife's iPhone 4S is about as fast as it was when she got it, because she hasn't done any OS upgrades on it at all.