There is a Q&A section on Amazon.com (https://www.amazon.com/gp/product/B0B7RDX7PN/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1), which I quoted as below:
Q: Can I use SmartTrack if I am an Android user?
A: Yes, you can use SmartTrack with the eufy Security app on Android devices. Apple Find My functions will not work if using SmartTrack with an Android device.
So, it is just another Tile when Android phone is involved. This makes a lot of sense now.