Interactive comparison
GPS Dog Trackers: Fi vs Whistle vs Tractive vs AirTag
The four trackers most buyers actually shortlist. Filter by the spec that matters to you — subscription model, real-time tracking, battery life, dog size — and see which one fits your situation. Specs sourced from each manufacturer’s published product page.
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Filter by what matters
Showing 4 of 4 trackers.
| Spec | Fi Series 3 Smart Collar | Tractive GPS Dog Tracker | Whistle Health + GPS Tracker | Apple AirTag (with collar mount) |
|---|---|---|---|---|
| Network | LTE-M + WiFi + Bluetooth | Cellular + GPS (3G/LTE) | AT&T LTE-M + WiFi | Bluetooth + Apple Find My network |
| Subscription | Yes $99–$189/year | Yes $5–$13/month | Yes $8.25–$13/month | No $0 (no subscription) |
| Real-time tracking | YesEvery 1 min (Lost Dog Mode) | YesEvery 2–3 seconds (LIVE Mode) | YesEvery 15 sec (Live Tracking) | NoCrowd-sourced via iPhones nearby |
| Battery | 90 days | 7 days | 20 days | 365 days |
| Waterproof | IP68 (swim-proof) | IPX7 (rain-proof) | IPX8 | IP67 |
| Activity tracking | Yes | Yes | Yes | No |
| Geofence | Yes | Yes | Yes | No |
| Min dog weight | 25 lbs | 9 lbs | 25 lbs | 5 lbs |
| Best for | Escape artists, working-line dogs | International travel, frequent runaways | Health monitoring + GPS combined | Urban areas, iPhone-only households, cost-conscious |
| Buyers say | 1,182 mentions FunctionalityTrackingResponsiveness | No aggregated sentiment yet. | 1,803 mentions TrackingReliability | No aggregated sentiment yet. |
| Buy | Buy on Amazon · $189 | Coming soon | Buy on Amazon · $79.95 | Coming soon |
How to pick
- If your dog escapes regularly:Fi or Tractive. Both poll near real-time. Fi’s 90-day battery wins for hands-off ownership; Tractive’s 2–3 second LIVE Mode wins for active recovery.
- If you want health metrics + GPS in one device:Whistle Health + GPS. Sleep, scratching, drinking, and activity tracking aren’t in Fi or Tractive.
- If you want to skip subscriptions: Apple AirTag is the only tracker here with $0 ongoing cost. The catch: no real-time tracking — it relies on a passing iPhone to ping back location. Fine in cities, useless on a rural hike.
- If your dog is under 25 lbs:Fi and Whistle both require ≥25 lb dogs. Tractive works down to 9 lbs; AirTag works at any weight (it’s 0.4 oz).