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+ GPS Dog Collar | Tractive GPS Dog Tracker | Fi Mini GPS Dog Tracker | Apple AirTag (with collar mount) |
|---|---|---|---|---|
| Network | GPS + nationwide cellular | Cellular + GPS (3G/LTE) | GPS + nationwide cellular | Bluetooth + Apple Find My network |
| Subscription | Yes 12 months included; renews after | Yes $5–$13/month | Yes 12 months included; renews after | No $0 (no subscription) |
| Real-time tracking | YesLive tracking; Lost Dog Mode raises update rate | YesEvery 2–3 seconds (LIVE Mode) | YesLive tracking (interval not published) | NoCrowd-sourced via iPhones nearby |
| Battery | 90 days | 7 days | 42 days | 365 days |
| Waterproof | IP68 | IPX7 (rain-proof) | IP68 | IP67 |
| Activity tracking | Yes | Yes | Yes | No |
| Geofence | Yes | Yes | Yes | No |
| Min dog weight | 25 lbs | 9 lbs | 0 lbs | 5 lbs |
| Best for | Escape artists, working-line dogs | International travel, frequent runaways | Small dogs; clips to the collar they already wear | Urban areas, iPhone-only households, cost-conscious |
| Buyers say | 1,182 mentions FunctionalityTrackingResponsiveness | No aggregated sentiment yet. | No aggregated sentiment yet. | No aggregated sentiment yet. |
| Buy | Buy on Amazon · $189 | Coming soon | Buy on Amazon · $189.00 | 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:either Fi. Fi states the Series 3+ tracks activity, sleep and behaviours including barking, licking, scratching, eating and drinking; the Mini tracks steps, active minutes and rest. Whistle’s tracker line, which used to be the answer here, is discontinued.
- 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).