iPhone Screen Timeout: How to Delay Auto-Lock
Two settings govern how quickly your iPhone will switch of its screen (also known as the “iPhone Screen Timeout“) and how quickly you will have to re-enter your passcode after unlocking it again. The latter setting is also known as the Auto-Lock Interval and can be turned off or modified. This is a guide on how to change the auto-lock interval that is similar but functionally unrelated to the iPhone screen timeout.
The Auto-Lock interval is there to keep your iPhone, and subsequently your data, safe and sound in case of loss or theft of the device. Note that this setting is only relevant when using a passcode (and Touch ID, if enabled). The Auto-Lock setting governs the time-related aspect of iPhone security. Once left unattended, your iPhone will require the passcode after the set interval. If unlocked before the inverval is up, you will be able to use your iPhone without providing the passcode. This comes in handy when using the phone in short bursts, e.g. while entering iMessage replies whilst busy with another task. The longer the interval, the smaller the chance of having to re-enter your passcode.
How to customize the Auto-Lock interval on iPhone
The Auto-Lock interval is easy to adjust. Open up your “Settings” app, go to the “General” section and tap “Auto-Lock”. Now pick one of the numeric intervals. You may also chose to disable Auto-Lock altogether, this way your iPhone will always be locked right away. Choose this option for maximum security.