At Fi, we balance a sleek, comfortable design for your dog's daily wear while providing a long-lasting battery to ensure we can report a signal when available.
Given the significantly larger size of your cell phone, it houses a bigger antenna, allowing it to access a stronger LTE-M signal.
If your dog escapes, especially in rural or wooded areas, they will likely encounter both poor and perfect coverage areas along their journey. As soon as the collar is able to receive that location report, you will be notified through the app.
To learn more about how GPS and LTE-M reporting can be affected, see: Why Am I Receiving Infrequent or Inaccurate Reports?