
You must have over 50% battery to install an iOS update. You can see the complete list of iOS 16-supported devices. However, If you have iPhone 7 or earlier, iOS 15 is the maximum you can go.

If you have an iPhone 8 or later (including iPhone SE 1 gen.), you can download and install the iOS 16. The first step is to ensure your device and iOS compatibility.

Essentials to ensure iOS update downloads and installs I.

Apple frequently releases iOS updates to keep your iPhone secure, up-to-date, and feature-rich.
