Fi
Fi New Series 3+ Smart Dog Tracker Collar
$99.00*Check Amazon for current price · as of Jul 20, 2026
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- Real-time GPS location tracking with escape alerts and virtual fences
- AI-powered health and behavior monitoring for activity, rest, barking, licking, scratching, eating, and drinking
- Apple Watch, iPhone, and Android app support
Specifications
| Target | Dogs (integrated collar) |
|---|---|
| Connectivity | GPS tracking through the Fi app |
| Range | Nationwide tracking with no stated range limit on Amazon listing |
| Battery | Up to 3 months per Fi official page |
| Water Rating | Waterproof per Amazon listing |
| Subscription | 6-month membership included with inspected Amazon variant |
Compare with similar gps trackers
| Feature |  Fi New Series 3+ Smart Dog Tracker Collar |  Tractive Smart Dog GPS Tracker (Mint) |  Tractive Smart Cat GPS Tracker (Dark Blue) |  Dogtra PATHFINDER2 MINI Compass GPS Dog Tracking and Training System |
|---|---|---|---|---|
| Brand | Fi | Tractive | Tractive | Dogtra |
| Rating | ★ 4.0 | ★ 4.0 | ★ 3.8 | ★ 4.6 |
| Price | $99.00*as of Jul 20, 2026 | $69.97*as of Jul 21, 2026 | $49.99*as of Jul 21, 2026 | $549.99*as of Jul 20, 2026 |
| Target | Dogs (integrated collar) | Dogs (collar attachment) | Cats (lightweight, collar attachment) | Dogs 15 lb and up |
| Connectivity | GPS tracking through the Fi app | LTE-M cellular + Bluetooth | LTE-M cellular + Bluetooth | GPS handheld plus app support; no cellular signal required |
| Range | Nationwide tracking with no stated range limit on Amazon listing | Unlimited (cellular), worldwide coverage | — | 4-mile range per Amazon listing |
| Battery | Up to 3 months per Fi official page | Up to 7 days | Up to 7 days | Rechargeable USB-C system per Amazon listing |
| Water Rating | Waterproof per Amazon listing | IPX7 waterproof | IPX7 waterproof | IPX9K waterproof per Amazon listing |
| Subscription | 6-month membership included with inspected Amazon variant | Required (from ~$5/month) | Required (from ~$5/month) | No monthly fee required |
| Weight | — | — | ~1 oz (28 g) | — |
| View on Amazon | View on Amazon | View on Amazon | View on Amazon |
* Snapshot price from the date shown — check Amazon for the current price and availability.