Apple released iOS 16 earlier this year, and it was a big upgrade on iOS 15. So, you might be wondering if your iPhone is compatible and how you get the upgrade.
Is my iPhone compatible with iOS 16?
To see if your iPhone can upgrade to iOS 16, check and see if your model is listed below:
iPhone 8 series
iPhone 8, iPhone 8 Plus
iPhone SE series
iPhone SE (2nd generation), iPhone SE (3rd generation)
iPhone X series
iPhone X, iPhone XR, iPhone XS, iPhone XS Max
iPhone 11 series
iPhone 12 series
iPhone 13 series
iPhone 13 Mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max
iPhone 14 series
iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max
iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max
iPhone 12 Mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max
Updating the software
We always recommend that you back up your iPhone before you do this. I personally prefer to back up with iCloud, but if you have limited space, you can connect your iPhone to a computer or Mac and back up to iTunes.
TOP TIP
Before you download and install the update, we recommend plugging in your iPhone to charge and connecting it to WiFi. You don't want to the power to run out halfway through or the large download file size to eat up your data allowance for the month.
Once that's done, go to Settings 
> General, then tap Software Update.
Once you're there, tap Install Now.
If you see Download and Install rather than Install Now, tap that. You may need to enter your passcode and then leave your iPhone for a short while to download the package.