If you've ever spent a sleepless night because your dog slipped a fence, you already know why GPS trackers exist. The question is which one to buy.
What actually matters
Most reviews focus on the wrong things. After testing dozens of trackers across two years, here's what genuinely makes the difference:
1. Battery life under real conditions
Manufacturers quote battery life in "standby mode." That's almost meaningless. What matters is how long the device lasts when your pet is actively moving and the GPS is pinging every few minutes. Look for trackers that promise 5+ days of active use, not 30 days of standby.
2. Cellular vs. Bluetooth vs. AirTag-style
This is the big choice. Cellular trackers (Tractive, Whistle) work anywhere there's a mobile network. They need a subscription (~$5-15/mo) but they actually find your pet across town. Bluetooth-only trackers (cheap AirTag clones) only work if your pet is within ~30 feet of your phone — useless for the actual "lost pet" scenario.
3. Geofencing
Set a virtual fence around your yard or home. The tracker pings you the moment your pet crosses it. This single feature has prevented more lost-pet panics than any other.
4. Weight and collar attachment
If your tracker weighs more than ~5% of your pet's body weight, they'll hate wearing it. For cats and small dogs, look for trackers under 30 grams.
What we recommend
Browse the Pet Safety & Tracking collection for our tested picks. Every tracker we list has been vetted against the criteria above.