Can you find location of a device from a different device signed in the same Apple ID?

Hello Sinicat13,

Welcome to Apple Support Communities. We understand you have some questions about using Find My to locate a device using a different device. If we understand your question clearly, the answer is: yes.

Use the Find My app to locate a missing device or item

You will need Find My already enabled on the lost device and signed in with the Apple ID in question. You can also log in with that same Apple ID to the iCloud website from a computer web browser. Let us know if you have any further questions.

Best regards.

Log onto www.icloud.com/find and enter the Apple ID and Password for the lost phone.

If the phone has good battery power and an Internet connection, it will show up on the Find My map. However, if the battery has run down or the phone does not have an Internet connection, it cannot broadcast information about its location, so it will not show up on the map.

In that case you might see a message that the phone is "Offline" or a "Last Known Location" might be displayed.