Here's why it seems like your iPhone gets slower when a new one comes out
Apple Release iOS 10 which supports the iPhone 5 and all newer devices
iPhone 5S : iOS 10 Final vs iOS 9.3.5 Speed Test / Performance Test - YouTube
Apple Releases Second iOS 10.2.1 Beta for Public Beta Testers - MacRumors
iOS 10 vs. iOS 11 vs. iOS 12 vs. iOS 13 vs. iOS 14 vs. iOS
iPhone 5 - Wikipedia
Benchmarks show that iOS updates don't slow down old iPhones
iOS 10.3.3 vs iOS 10.3.2 Performance Comparison on iPhone 6s, 6, 5s & 5 - Video
iOS 10 is a pleasant surprise for the iPhone 5 and 5C | Ars Technica
Debunked: Apple is not slowing older iPhones on purpose with iOS updates - HardwareZone.com.sg
Apple announces new iPhones and final details on iOS 7 - iPad Pilot News
Futuremark debunks speculation that Apple intentionally slows down older iPhones
Battery performance test : iOS 10 final vs iOS 9.3.5 (iOS 10.0.1 build #14A403) - YouTube
iPhone 5S: Is it worth an upgrade?
iPhone Generational Performance & iPhone 5s vs. Bay Trail - The iPhone 5s Review
iPhone 5s on iOS 10 VS iOS 12 - Which Is Faster? - YouTube
iOS 7.1.1 on iPhone 5s: Impressions and Performance
iOS updates might drain your battery faster | Cult of Mac
iOS 12 is now officially available, even for iPhone 5S
iOS 12 Brings Significant Performance Upgrades to Older Devices • iPhone in Canada Blog
How to help iOS 7 run faster on an older iPhone
The evolution of Apple's iPhone | Computerworld
iPhone 5S : iOS 10 Final vs iOS 9.3.5 Speed Test / Performance Test - YouTube
Apple pauses development of iOS 18 and other software to address bugs and performance issues - Supercharged
iPhone 5s - Wikipedia
Benchmarking Firm Says Apple Isn't Slowing Down Your Old iPhone | Extremetech
