A pet microchip and a GPS tracker solve different parts of a lost-pet problem. A microchip supplies an identification number when scanned. A tracker is external equipment that can help report location. An implanted identification chip cannot display your pet’s movements on a map.

That is why getting a pet chipped and maintaining its registration matter together. A readable number needs to lead to a registry record with usable contact details. The AVMA’s microchipping FAQ explains the passive, scanner-activated system and why it is not GPS.

Follow the recovery chain

Item How it helps What can interrupt the chain
Collar identification tag A finder can read contact information Collar or tag is missing; details are outdated
Implanted microchip A scanner retrieves the identification number Chip is not detected or the registration cannot be resolved
Registry record Connects the identifier to contact information Record is absent, incorrect or out of date
GPS tracker Provides location information through its supported tracking system Tracker separates from the pet, loses power or cannot provide an update

The table is a process map, not a ranking of recovery success. The AAHA identification guidance treats identification methods and maintained records as complementary. None guarantees a reunion.

A chip number is not a live location

If you have a microchip certificate, use its number to confirm the registration with the relevant registry. Do not expect the certificate or a lookup page to show where the animal is now.

Likewise, an app showing a tracker location does not update a microchip record. The tracker account and the microchip registry are separate systems. After a move, phone-number change or transfer of a pet, check each record that applies rather than assuming one update reaches all services.

What to record for a tracker

Keep the exact tracker model, account access, charging requirements and the manufacturer’s stated conditions for location updates. Check the supported service area before relying on it away from home. A displayed position also needs a timestamp: an earlier update should not be mistaken for a current one.

Tractive’s own comparison points out two simple limitations of external equipment: a detached collar or dead battery prevents tracking the pet. Those limitations are different from the identification role of an implanted chip. Manufacturer explanation

A useful annual identification check

Ask your veterinary practice about checking that the chip can be read. Confirm the number against your records, then check the registered contact details directly with the registry. Keep a second contact current where the registry supports it, and make sure a physical tag is readable.

This guide uses veterinary organizations and manufacturer documentation, checked October 12, 2026, with US registration context. We did not implant chips, test trackers or measure recovery rates. A veterinarian can advise on your pet’s identification needs; the comparison here explains what the systems do.

Sources