iOS 26 is now accessible to all iPhone users, and many individuals might postpone updating due to the belief that Apple’s new software versions could slow down their devices. Although this isn’t accurate, Apple acknowledges that the battery life of your iPhone may suffer a setback after upgrading to iOS 26. Nonetheless, this situation should only be temporary. In a support document, the company explains: “Right after finishing an update, especially a major one, you may experience a temporary effect on battery life and thermal performance. This is standard, as your device requires time to finalize the setup process in the background, which includes indexing data and files for searching, acquiring new assets, and upgrading apps.”
Apple additionally mentions that iOS updates may slightly affect performance and battery life, depending on how individuals use their devices, since some features could demand extra resources. However, none of these should be significant enough to deter users from installing a significant update.
