How do I find my wife’s iPhone with Find My Phone app.

To find your wife's phone using the Find My app on your iPhone, you can follow these steps:

1. Open the Find My app on your iPhone.
2. If you're signed in with your own Apple ID, tap the "Me" tab at the bottom of the screen and switch to your wife's Apple ID by tapping the icon in the top left corner of the screen and selecting her name.
3. If you're not signed in with your wife's Apple ID, tap the "People" tab at the bottom of the screen and select your wife's name from the list of contacts.
4. If your wife's phone is currently online and connected to a cellular or Wi-Fi network, you should see its current location on the map in the app. You can zoom in and out on the map to see the location more clearly, and tap on the location to get more details like the battery level and driving directions.
5. If your wife's phone is not currently online, you may still be able to see its last known location on the map. This can be helpful in determining where it was last seen and potentially locating it if it's lost or stolen.
6. If you need to take additional actions like playing a sound on the phone to help locate it or remotely locking or erasing it for security reasons, you can do so using the options in the Find My app.

Note that in order to use the Find My app to locate your wife's phone, she must have enabled the Find My feature on her phone and allowed you to see her location. If she hasn't done so, you may not be able to locate her phone using the Find My app.

This document has a list of things to do if your iPhone, iPad, or iPod touch is lost or stolen. --> If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

Read this document for how to use the Find My app to locate a missing device or item --> Use the Find My app to locate a missing device or item - Apple Support

The chances of locating a device depend upon which features you selected in:

Set up Find My on your iPhone, Mac, and other devices - Set up Find My on your iPhone, iPad, iPod touch, or Mac - Apple Support

We assume that the Find My option was enabled on your wife's phone....before....it was lost.

Use any browser and log onto www.icloud.com/find

Enter the Apple ID and Password that was associated with your wife's phone

Unfortunately, if the battery has run down or the phone does not have an Internet connection where it is currently located, the phone will not show up on the Find My map.

All that you can do is keep trying to see if the status on the phone changes.

More info here: If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

Be extremely careful if you receive an email or message from "Apple" or "Apple Service", etc that indicates that the phone has been found. This is a SCAM that is trying to trick you into revealing info about the phone so the bad guys can open up the phone. Apple will never send a message like this.....that is how you will know it is a scam.