Now where do you get those GPS trackers so I can find out where she has been going?
Hmmm difficult. There was a time I'd have recommended Pawtrack. We had one and it worked just fine. That's not to say well but it worked as well as someone with reasonable expectations of GPS and mobile phone networks living in a hilly & tree filled location would anticipate. Sometimes it could be scary accurate (a few times we found our cat within a metre of where the tracker said), others it said he was a hundred metres outside reasonable bounds travelling at warp speed. If you expect something off a spy movie you'd be frothing on antisocial media. If you expect & understand cafe drift & dead spots you'd likely be more sanguine.
The two batteries it came with were excellent, just swap them over each morning.
The charger died & no quibble pawtrack sent a replacement far outside warranty.
But then we started to have trouble connecting to the servers. Two account resets got us working again but the third time we could get no response to emails & bad reviews started to appear online.
The entire system went down for a year, just had to cancel the direct debit & move on.
And then Pawtrack reappeared with new design of collar. And the bad reviews continued.
My theory is there's someone in the UK designing good hardware but they're not so cute at costing their back-end services or their pricing. In particular they struggle with all the global gsm contracts. I'm really tempted to get another, it could be a total loss but the version we had was good kit IMO for the 2 or 3 years it worked.
None of the competitors are within a mile of as neat, compact or shaped right. Pawtrack is a collar shaped object with GPS capabilities. The rest are cubes obviously phone sub-pcbs in a custom case you dangle off a regular collar.