iPhone doesn't have a traditional "flash for notifications" setting like some Android phones do
What you're looking for is called LED Flash for Alerts, and it's built into iPhones running iOS 13 and later. When you turn it on, your phone's camera flash (the LED light on the back) will blink when you get a notification, even if your phone is face-down or the screen is off. This works for calls, texts, reminders, and most other notifications your apps send.
The feature is in Settings under Accessibility, not under Notifications. Apple groups it there because it's designed as an accessibility tool for people who are deaf or hard of hearing, but anyone can use it if they want a visual alert they can see from across the room.
Key Takeaways
- LED Flash for Alerts is found in Settings > Accessibility > Audio/Visual, not in the Notifications section.
- The feature works on iPhone 11 and later models, and on some iPhone XS and XR devices depending on iOS version.
- Once turned on, the flash will blink for incoming calls, messages, and app notifications without draining battery noticeably.
- You can turn the flash on or off at any time, and it respects your Do Not Disturb and Focus settings.
Where to find the LED Flash setting on your iPhone
Open the Settings app and tap Accessibility. Then tap Audio/Visual (on some older iOS versions it may say "Hearing" instead). You'll see a toggle for LED Flash for Alerts — tap it to turn it on.
If you don't see this option, your iPhone model or iOS version may not support it. The feature requires iOS 13 or later and works on iPhone 11, iPhone 12, iPhone 13, iPhone 14, iPhone 15, and newer models. Some iPhone XS and XR devices also support it if they're running a recent enough iOS version, but the original iPhone X and earlier models do not have the necessary hardware.
What happens when LED Flash for Alerts is on
When a notification arrives, your phone's rear camera flash will blink once or twice, depending on the notification type. A single flash usually means a message or app notification. Multiple flashes or a longer pattern typically indicate a phone call. The flash works whether your screen is on, off, locked, or face-down on a table.
The flash respects your phone's Do Not Disturb and Focus settings. If you have Do Not Disturb turned on and your phone is set to allow only certain contacts through, the flash will only blink for those allowed notifications. This means you won't get a flash for every notification when you're trying to focus or sleep.
Controlling which apps trigger the flash
Once LED Flash for Alerts is on, it applies to all notifications by default. You can't turn the flash on for just one app or just text messages — it's an all-or-nothing setting at the system level.
If you want to reduce flash alerts without turning the feature off entirely, use Focus modes or Do Not Disturb to silence notifications from specific apps during certain times. Go to Settings > Focus (or Do Not Disturb) and choose which apps can send notifications while that mode is active. The flash will only blink for the notifications that make it through.
Why the flash might not be blinking even though it's turned on
Check that LED Flash for Alerts is actually toggled on in Settings > Accessibility > Audio/Visual. The toggle should be green or blue, not gray.
If it's on but you're not seeing flashes, your phone may be in Do Not Disturb or a Focus mode that silences notifications. Check Control Center (swipe down from the top right) to see if Do Not Disturb is active. You can also check Settings > Focus to see which modes are currently running.
Another reason: if your phone is plugged in and charging, some iPhones reduce the flash brightness to protect the LED. Try unplugging it and testing again. Also make sure the rear camera lens isn't covered by a case or protective film — the flash needs a clear path to be visible.
Battery impact of using LED Flash for Alerts
The LED flash uses very little power. Each blink lasts a fraction of a second, and most people receive notifications sporadically throughout the day, not constantly. You won't notice a meaningful difference in battery life from turning this feature on.
If you're concerned about battery, the flash is far less power-hungry than keeping your screen on or using vibration alerts repeatedly. Vibration actually drains the battery faster than the LED flash because the phone's motor has to spin up each time.
Turning LED Flash for Alerts off
Go back to Settings > Accessibility > Audio/Visual and toggle off LED Flash for Alerts. The flash will stop blinking immediately, and your phone will return to its default notification behavior (sound, vibration, and banner alerts only).
You can turn it back on anytime using the same path. There's no waiting period or confirmation — the change takes effect right away.
Frequently Asked Questions
Does LED Flash for Alerts work when my phone is in a pocket or bag?
No, the flash won't be visible if the rear of your phone is blocked. The light needs a clear line of sight to reach your eyes. If you want alerts while your phone is in a pocket, vibration or sound is a better choice.
Can I make the flash brighter or change how many times it blinks?
No, the brightness and blink pattern are fixed. iOS controls both automatically based on the type of notification. You can only turn the feature on or off.
Will the flash blink for notifications when my screen is already on?
Yes, the flash will blink even if you're actively using your phone. If you find this distracting, you can turn the feature off or use a Focus mode to limit which notifications come through.
Does this work for text messages from specific people?
The flash blinks for all notifications that make it through your current settings. You can't target it to just one contact, but you can use Focus modes to allow messages from certain people only during specific times, and the flash will only blink for those.
What if my iPhone doesn't have this option?
Your phone may be too old or running an older iOS version. Check Settings > General > About to see your iOS version. If it's older than iOS 13, you can't use LED Flash for Alerts. If your phone is an iPhone X or earlier, the hardware doesn't support it.