iOS 5 through iOS 9 speed test on iPhone 4s confirms iOS gets slower every year on older devices
![iOS 8.4 Available for iPhone, iPad, iPod Touch [IPSW Download Links] | OSXDaily](https://cdn.osxdaily.com/wp-content/uploads/2015/06/ios-8-4-download-ota.jpg "iOS 8.4 Available for iPhone, iPad, iPod Touch [IPSW Download Links] | OSXDaily")
iOS 8.4 Available for iPhone, iPad, iPod Touch [IPSW Download Links] | OSXDaily
A look at the iPhone 4S running iOS 8 in 2019 - YouTube
How to Downgrade iPhone 4s From iOS 9.3.5 to iOS 8.4.1 / iOS 6.1.3 (Without SHSH Blobs) – iPodHacks142
iOS 8 on the iPhone 4S: Performance isn't the (only) problem | Ars Technica
Apple Reaches Settlement to Pay $15 to Some iPhone 4S Owners Who Experienced Buggy Performance After iOS 9 Update - MacRumors
Update software - Apple iPhone 4S - iOS 8 - Device Guides
iOS 9 Will Be Optimized For Older Devices Like iPhone 4S - Review Tech
Should I update my iPhone 4S to iOS 8? | The iPhone FAQ
iOS 8.1 iPhone 4s Reviews: Should You Install iOS 8.1?
iPhone 4 and iOS 8 update - YouTube
iOS 8.3 Proven to Run Faster than iOS 9 Beta on the iPhone 4s
iOS 8, thoroughly reviewed | Ars Technica
Update To iOS 8: Install iOS 8 On iPhone 5S, 5C, 4S, iPad, iPod Touch - Innov8tiv
Installare iOS 8 su iPhone 4 - CCM
Read this before upgrading your iPhone 4s to iOS 8
Apple mops up iOS mess with new update - CNET
Four Ways to Improve Battery Life on iOS 8, iPhone 6
iOS 8.0.2 su iPhone 4S migliora le performance
