How to get a left behind notification when you forget your iPhone, Apple Watch, AirTagged item or other(s)

Find My app Notify When Left Behind notification for iPhone on Apple Watch

Okay, I’m sure I’m not the only one who forgets their iPhone when walking out the door. The good news is that Apple has finally caught up to my behavior with their new feature, called Notify When Left Behind (part of Find My.)

This separation notification helps you keep track of your devices’ and items’ locations and, when set up, alerts you when you leave one (or more) of them behind. 

So, if you’re like me and rush out the door thinking your iPhone is in your purse, backpack, or bag when it’s really on your desk or elsewhere around the house, this feature is a must.

And here’s how you set it up and get it working! So follow along.

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First, check that your Apple product(s) supports Notify When Left Behind?

Of course, this feature isn’t available on all Apple products. At this time, your device must run at least iPadOS and iOS 15, watchOS 8, or macOS Monterey. 

AirTags are also supported, along with Works with Apple Find My products and accessories compatible with the Find My network and the Find My app.

So it’s not just Apple-branded devices that work with Left Behind. What’s surprisingly not support (yet) are AirPods–something I notoriously leave behind all the time!

To work, all your products must be registered to the same Apple ID. Family sharing isn’t supported, at least not yet.

How does Notify When Left Behind work?

It’s pretty simple. Using Bluetooth, your device recognizes when it’s not in the vicinity of another device.

For example, if you walk out the door with your Apple Watch on your wrist and start down the street leaving your iPhone behind, you get a notification on your Watch that you left your iPhone behind.

Pretty awesome!

The good news is that once you turn it on and set it up, anytime you separate one device from another, you receive a notification. The bad news is that you won’t get that notification right away. You need to be at least 300 feet away for this notification to trigger.

In my experience using the Notify When Left Behind feature, I didn’t get any notifications until I was down the street or a few streets over from where I’d left my iPhone. For me, that’s acceptable since it means a short drive or walk to retrieve it. 

How to turn on Notify When Left Behind on your iPhone, Apple Watch, iPad, and more!

  1. Open the Find My app. For Apple Watch, open either the Find Devices or Find Items app, depending on what product you want to turn this feature on for.
    1. For iPhone, Watch, iPad, etc., choose Find Devices.
    2. For AirTags and Works with Find My devices, tap Find Items. Find Devices and Find Items apps on Apple Watch
  2. For the Find My app, navigate to the bottom row of tabs. Then, tap Devices (for iPhone, Apple Watch, iPad) or Items (for AirTags and FindMy network products). devices or items tabs in the Find My App
  3. Choose your device from the list of what’s available and associated with your Apple ID.
    1. At this time, you cannot turn this feature on for devices in your family associated with another family member’s Apple ID.
  4. Scroll down to the Notifications section, and tap Notify When Left Behind. Notify When Left Behind off in Find My App
  5. Toggle Notify When Left Behind on. turn on notify when left behind in Find My app
  6. Tap Done at the top to save your setting.
  7. Repeat for all your items and devices where you want these notifications to show up.

Once you turn this feature on, you’ll receive a notification alert when the item or device you set up is no longer in the range of your other devices (iPhone, iPad, Apple Watch) using that same Apple ID.

Change your home boundary and add location exceptions

By default, Apple creates a home boundary radius of 300 feet around your home based on your contact card’s address.

If you live on a larger property or are getting notifications when you are still at home, you can change that boundary setting. And you can also add locations for places you frequently visit where you don’t want these separation notifications.

  1. Open Find My app and go to the Devices or Items tab.
  2. Tap on the device or item you want to change the boundary or add a new location exception. 
  3. Tap on Notify When Left Behind option.
  4. Under Notify Me, Except At tap on New Location. set up a new location for exceptions in Find My App Notify When Left Behind
  5. The map shows your current location.
    1. To change your home boundary, increase the size of the circle around your home or choose from Small, Medium, or Large at the bottom. When satisfied, press Done. Find My app Apple choose a location exception and set a boundary
    2. To add a different location than your current, enter the address of the location you want to add to the exceptions list. Once that location is on screen, adjust the boundary of that location by changing the circle size or choosing Small, Medium, or Large. When complete, tap Done to save your updates.
    3. Repeat these steps for any additional locations. 

How to turn off Notify When Left Behind notifications.

Getting too many notifications that you left behind a device or item?

If you’re receiving notifications that you left behind a device or item that normally stays put in your home, office, or elsewhere, you probably want to turn this feature off.

For example, I keep my iPad at home, so I don’t need this feature because I don’t need to know when it’s away from my other devices (iPhone and Watch.) Indeed, it’s often not in their range!

On the other hand, I usually leave my home with both my iPhone and my Apple Watch. Sometimes, I’ll forget to strap on the watch, or I’ll leave thinking I have my iPhone with me when it’s really on the charger or somewhere else. So in these cases, I do want to know if I left my iPhone or watch behind.

So use this feature when it makes sense and keep it off on devices that don’t normally travel with you.

  1. Open the Find My app.
  2. Navigate to the bottom row of tabs.
  3. Tap Devices (for iPhone, Apple Watch, iPad) or Items (for AirTags and FindMy network products).devices or items tabs in the Find My App
  4. Choose your device from the list of what’s available and associated with your Apple ID.
    1. At this time, you cannot turn this feature on for devices in your family associated with another family member’s Apple ID.
  5. Scroll down to the Notifications section, and tap Notify When Left Behind.
  6. Toggle Notify When Left Behind off. turn off notify when left behind in Apple Find My app
  7. Tap Done at the top to save your setting.
  8. Repeat for any additional devices or items that you want to turn off this setting.

You should only need to do this once on a single device in the Find My app. It may take a bit of time for these changes to update on all your connected devices and items. 

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