

I am using this one. Texting or messaging my phone (on anything that makes a notification popup) with the text “fmd password location” gives me GPS coords. More than enough for me, and works even from a borrowed stranger’s phone.
Setup steps require ADB though, because in the phone ecosystem getting “unusual” permissions usually requires business deals with Google/Apple.
Unit pedant here: Just 166W. Watts are joules per second (they already have time in them, adding another unit of time confuses things).
This might seem silly, but it will help avoid confusion when you encounter Wh (watts * hours).