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Whistle was acquired by Tractive in early 2025, so this is now a two-way comparison.
Comparison Table
| Tractive GPS | FitBark GPS (2nd Gen) | |
|---|---|---|
| Device cost | ~$65 | ~$50 |
| Plan cost | From ~$5/mo | Subscription required |
| Live tracking | Fastest GPS lock | Solid, secondary to health focus |
| Health analytics | Basic activity | Vet-grade wellness analytics |
| Carrier support | Standard cellular | Tri-carrier |
Individual Reviews
Tractive — Best for Real-Time Location Tracking
Live-tracking speed and accuracy is the deciding factor across independent tests.
FitBark — Best for Ongoing Health Monitoring
Owners catch early mobility or sleep-pattern changes before they become a visible vet issue.
Which One Should You Choose?
- Fast, accurate live location: Tractive.
- Long-term health/wellness tracking: FitBark.
- Spotty cell coverage on one carrier: FitBark’s tri-carrier support.
FAQ
Is Whistle still available to buy?
No — acquired by Tractive in early 2025.
Which is cheaper long-term?
Both undercut Fi’s subscription significantly over 5 years.
Can I use either tracker on a cat?
Both offer cat-specific/mini form factors — check current lineups.