iPhone performance issues linked to battery: Geekbench developer

Users who find that their iPhone 6s has slowed down in terms of performance should note that the problem may be linked to the battery and the iOS updates, according to a post by GeekBench developer John Poole. GeekBench is a popular benchmark testing app that rates the performance of smartphones across various parameters.

The post on GeekBench is based on a Reddit post, which suggests that the iPhone performance is linked to the battery age. The Reddit post has drawn more than 1,000 comments, with the main post arguing that Apple tends to slow down iPhones with low capacity batteries, especially devices like the iPhone 6s, iPhone 7, etc.

According to Poole's post for GeekBench, users having older iPhones saw a drastic improvement in performance as scores on GeekBench after they replaced batteries showed. Poole has shown on graphs on Geekbench four single-core scores for the iPhone 6s and the iPhone 7 running different versions of iOS.

In case of the iPhone 6s, which first launched in September 2015, it looks like the phones running on iOS 10.2.0 appeared more or less uniform in terms of scores, however, for the same phone running on iOS 10.2.1 and iOS 11.2.0, there is one large peak in scores and smaller peaks around lower scores. In the graph shared by Poole, under iOS 11 this fluctuation in scores is much more pronounced.