Lowest upfront cost in the category — but accuracy trade-offs are real.
The Petcube GPS tracker is the cheapest option in our ranking, and the accuracy results in independent testing reflect that — some reviewers found it marked locations in random spots far from the actual position, correlating with weak cellular signal. If budget is the absolute constraint, this is an entry point. We'd recommend the Tractive as the minimum viable standard for real-world reliability in any lost-dog scenario.