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Open the Find My iPhone app
Open the Find My iPhone app and tap the Devices tab. Tap apple watch at the top of the screen. If you don’t see your Apple Watch listed, swipe down on the screen and tap the All Devices button at the bottom. Your Apple Watch will appear on a map so you can see where it is.
Select the Devices tab
Tap Find My Watch, then turn on Send Last Location if it’s not already on.
Now if your watch is lost, you can use Find my iPhone to find it.
Select your Apple Watch
From the Watch app on your iPhone, select the watch tab then go to General > Apple ID.
Enter apple id password, then select Continue.
Select your Apple Watch from the list of available devices, then select Done.
Choose the “Actions” button, then select “Find My Apple Watch.”
If your Apple Watch is lost or stolen, you can use your iPhone to find it. Just select the “Actions” button, then select “Find My Apple Watch.” You can also use the Find My app on your iPhone to locate your watch.
Select Play Sound
If you’ve misplaced your Apple Watch and it’s somewhere close by, you can use your iPhone to ping it and help you locate it. Here’s how:
1. On your iPhone, open the Find my Watch app.
2. Tap the Play Sound button.
Your Apple Watch will emit a sound that gets progressively louder for two minutes, or until you tap Stop.
If your Apple Watch is off or out of range of your iPhone, the sound will play as soon as it connects to a Wi-Fi network or is in range of your iPhone again.
Follow the sound to find your watch
If you think your Apple Watch is nearby, but you can’t seem to find it, try following the sound. If your watch is on and nearby, you can make it ping by doing the following:
1.Open the Apple Watch app on your iPhone.
2.Tap the My Watch tab.
3.Tap Sounds & Haptics.
4.Turn on Sound effects and flick the switch next to Ping under Ringer and Alerts Options.
Your watch will now emit a short, high-pitched sound whenever you select Ping from your iPhone (or whenever you trigger a notification or other action that would normally cause a sound). Just follow the noise until you track down your watch.