A dog tracker's GPS chip works out where your dog is; then a cellular modem, a satellite link or a radio transmitter sends that position to you. Cellular is the default for pets (works anywhere with coverage, needs a plan); radio suits hunting (long range from you, no plan); satellite fills gaps beyond towers.
Step one: every tracker finds itself by GPS
The collar listens to navigation satellites and calculates its own position. That part is free and works almost anywhere with a view of the sky; accuracy drops under dense trees, beside tall buildings and indoors.
Finding the position is only half the job. A tracker that can't send its location to you is just a recorder.
Step two: getting the location to you
| Link | Examples we cover | Range | Plan |
|---|---|---|---|
| Cellular (LTE / LTE-M) | Fi, Tractive, PetSafe GPS Tracker, PAJ | Anywhere with coverage | Required |
| Satellite plus cellular | Fi Ultra (T-Satellite with Starlink) | Beyond many towers | Required |
| Radio to a handheld or phone | Dogtra PATHFINDER2, Garmin Alpha | Miles from you, line of sight | None for tracking |
| Bluetooth crowd-finding | Apple AirTag | Near other people's phones | None |
Tractive DOG 6 and Fi Series 3+ are cellular. Fi Ultra adds satellite coverage. Dogtra PATHFINDER2 sends position over radio to your phone, up to 9 miles, with no monthly fee.
Which link fits your dog
- Dogs that slip out of the yard or bolt on walks: cellular, so you can find them wherever they run.
- Hunting and backcountry dogs working away from you: radio, with long range and fast updates and no plan.
- Rural areas with weak cell signal: look at satellite-capable models.
- A tag on the collar for errands in town: Bluetooth works where people are, not in woods or fields.
Products mentioned
Fi Series 3+ Smart Collar
Up to 3 months per charge; GPS/LTE plan required.
Tractive DOG 6 GPS & Health Tracker
Three U.S. LTE carriers; separate plan required.
Dogtra PATHFINDER2 GPS Tracking & Training System
Up to 9 miles, 21 dogs, no monthly subscription.