I personally love being able to get new software on my iPhone as soon as it’s available but over the long haul it might not be a good idea to keep upgrading. Why? Because as a video posted by YouTuber EverythingApplePro demonstrates, the performance of your device really does degrade if you install major updates on it for an extended period of time.

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Essentially, the video compares the performance of an iPhone 5 that still runs iOS 6 with an iPhone 5 that has been updated to iOS 9. Obviously, Apple has added a ton of great features to iOS since iOS 6 first launched in 2012 but the video also demonstrates that these features have come at the expense of the phone’s overall performance.

As you’ll see, the phone takes longer to boot up and there’s a noticeable lag between when you click to open an app and when that app is ready to use. The video also shows that iOS 9 takes up a lot more memory than iOS 6 did and that the iOS 6 device outperforms the iOS 9 device in benchmark scores.

Now, does this mean you definitely shouldn’t upgrade your phone to iOS 10 when it comes out later this year? Of course not. However, if you are still rocking an iPhone 5s it should definitely make you think twice since it will likely lead to similar performance degradation like what we see in the video. iPhone 6 users may also want to weigh how well their devices have performed since installing iOS 9 on their phones before taking the plunge.

The iPhone 6s will likely be fine to run iOS 10 this year, although if you plan on hanging onto it for longer than that, you might want to consider not upgrading to iOS 11 to preserve performance.

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