Where to find the screen timeout setting

The screen timeout setting on your iPhone lives in the Display & Brightness section of Settings. Open Settings, tap Display & Brightness, then look for a choice called Auto-Lock. That's the setting that controls how long your screen stays on before it dims and locks itself.

Auto-Lock appears as a single line with the current timeout value shown on the right side — it might say "2 Minutes" or "5 Minutes" depending on what your phone is set to now. Tap that line and you'll see all the available timeout options.

What timeout lengths are available

Your iPhone offers six standard Auto-Lock options: 30 Seconds, 1 Minute, 2 Minutes, 3 Minutes, 5 Minutes, and Never. The "Never" option means your screen will stay on indefinitely until you manually lock it by pressing the side button or using Face ID to lock it.

Most people choose 2 or 5 minutes as a balance between battery life and convenience. Shorter timeouts (30 seconds or 1 minute) drain your battery more slowly but require you to unlock your phone more often. Longer timeouts keep your screen on longer, which uses more power but means fewer unlocks during active use.

Key Takeaways

  • Auto-Lock is found in Settings > Display & Brightness and controls how long your screen stays on before locking.
  • Your options range from 30 seconds to Never, with 2 and 5 minutes being the most common choices.
  • Shorter timeouts save battery but require more frequent unlocking; longer timeouts do the opposite.
  • The setting applies to your entire phone and cannot be customized per app or per situation.
  • If you set Auto-Lock to Never, your battery will drain much faster during the day.

Why your screen timeout matters for battery life

Your screen is the single largest power consumer on your iPhone. Every minute it stays lit uses battery that could have been saved by locking sooner. If you set Auto-Lock to Never, your screen may stay on for hours while you're not using your phone, draining the battery even though nothing is happening.

Setting Auto-Lock to a shorter time — like 1 or 2 minutes — means your phone locks itself as soon as you stop actively using it. This is especially helpful if you tend to set your phone down and forget about it. A 5-minute timeout is a reasonable middle ground if you frequently pick your phone back up within a few minutes of setting it down.

When to choose shorter versus longer timeouts

Choose 30 seconds or 1 minute if you want maximum battery life and don't mind unlocking your phone frequently. This is useful if you're away from a charger all day or if your battery health is degraded and you're trying to stretch the charge as far as possible.

Choose 2 to 5 minutes if you use your phone actively throughout the day and want to avoid constant unlocking. This is the most common choice because it balances battery conservation with usability. Choose Never only if you're always near a charger or if you're using your iPhone in a specific situation where you need the screen to stay on — for example, if you're reading something while cooking and need to reference it repeatedly without touching the screen.

How to change the setting step by step

Open the Settings app on your home screen. Scroll down and tap Display & Brightness — it's usually near the top of the list. Look for the Auto-Lock option and tap it.

A menu will appear showing all six timeout options. Tap the one you want. A checkmark will appear next to your choice, and you'll return to the Display & Brightness screen. The change takes effect when ready; you don't need to restart your phone or confirm anything else.

If you ever want to change it again, follow the same steps. There's no limit to how many times you can adjust Auto-Lock.

What happens if you can't find Auto-Lock

If you're looking at Display & Brightness and don't see Auto-Lock, check that you're running a current version of iOS. Very old versions of iOS organized settings differently, though Auto-Lock has been in the same place for many years.

If you're using an iPad instead of an iPhone, the setting is in the same location — Settings > Display & Brightness > Auto-Lock — and works the same way. If you're using an older iPhone running iOS 15 or earlier, the setting is still in Display & Brightness and still called Auto-Lock.

Frequently Asked Questions

Does Auto-Lock work when I'm using an app?

Yes. If you open an app and then don't touch your phone for the duration you set in Auto-Lock, your screen will lock even if the app is still running. Some apps like Maps or Music will continue running in the background, but your screen will turn off and lock.

Can I set different timeouts for different situations?

No. Auto-Lock applies to your entire phone in all situations. You cannot set a longer timeout for when you're at home and a shorter one for when you're away, or different timeouts for different apps. The setting is global and always the same.

What if I set Auto-Lock to Never and forget to lock my phone?

Your screen will stay on and drain your battery until you manually lock it by pressing the side button or until your battery runs out. If you choose Never, you're responsible for locking your phone yourself when you're done using it.

Does changing Auto-Lock affect Face ID or Touch ID?

No. Auto-Lock only controls when your screen turns off and locks. Your biometric security settings remain unchanged. You'll still need to use Face ID or Touch ID to unlock your phone after it locks, regardless of what Auto-Lock timeout you choose.

Will a shorter Auto-Lock timeout make my phone slower?

No. Auto-Lock only affects how long your screen stays on. It does not change how fast your phone processes information or runs apps. The only effect is on battery life and how often you need to unlock your phone.