Description
- NEXT-GEN GPS DOG TRACKER: The Fi Series 3+ collar is our most accurate and reliable smart collar—featuring 2x improved GPS performance from past devices to track your dog’s real-time location, nationwide, with no range limits using the Fi app. It’s the perfect Christmas dog collar for dog moms and dog dads.
- ESCAPE ALERTS: Custom virtual fences use the Fi app to alert you the instant your dog leaves a safe zone. If your dog escapes, get real-time notifications from your GPS dog tracker every few seconds as your dog roams.
- AI-POWERED HEALTH + BEHAVIOR TRACKING: The first smart dog tracking collar to detect activity, rest, barking, licking, scratching, eating, and drinking—giving you a complete picture of your dog’s well-being. Review all your dog’s health and behavior data right in the Fi app.
- APPLE WATCH INTEGRATION + ANDROID & IPHONE COMPATIBLE: View live location, activity, and Lost Mode from your Apple Watch. Plus, ask the built-in AI Companion anything—from behavior questions to care tips from your smartphone. This dog tracker delivers personalized reminders for vet visits, vaccines, and more through the Fi app.
- SMART VET RECORDS: Never lose track of your dog’s medical history. Add vet receipts, pet insurance, vaccine records, training certificates, and other important health documents in the Fi app to help organize, summarize, and store the documents—all in one place.
Product description
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Fi Series 3+
Merchant Video
Fi GPS Trackers
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Add to Cart
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Add to Cart
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Add to Cart
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Customer Reviews
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4.1 out of 5 stars 1,161
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4.0 out of 5 stars 74
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3.3 out of 5 stars 7
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4.1 out of 5 stars 1,161
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4.1 out of 5 stars 1,161
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4.1 out of 5 stars 1,161
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Price
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$189.00$189.00 | — | $189.00$189.00 | $189.00$189.00 | $189.00$189.00 | $189.00$189.00 |
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Location
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GPS & LTE tracking | GPS & LTE tracking | GPS & LTE tracking | GPS & LTE tracking | GPS & LTE tracking | GPS & LTE tracking |
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Battery life
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Up to 3 months battery life | Up to 6 weeks battery life | Up to 6 weeks battery life | Up to 3 months battery life | Up to 3 months battery life | Up to 3 months battery life |
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Charging
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Wireless charging base | Easy USB-C charging | Easy USB-C charging | Wireless charging base | Wireless charging base | Wireless charging base |
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Hardware
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Customizable night light | 0.56 oz | 0.56 oz | Customizable night light | Customizable night light | Customizable night light |
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Waterproof
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Waterproof (IP68/66K) | Waterproof (IP68) | Waterproof (IP68) | Waterproof (IP68/66K) | Waterproof (IP68/66K) | Waterproof (IP68/66K) |
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Product dimension
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50.5 x 30.5x 11.5mm (L xWx D) | 42 x 30 x 12.5mm (L x W x D) | 42 x 30 x 12.5mm (L x W x D) | 50.5 x 30.5x 11.5mm (L xWx D) | 50.5 x 30.5x 11.5mm (L xWx D) | 50.5 x 30.5x 11.5mm (L xWx D) |
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Health
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AI-analyzed behavior tracking | AI-analyzed behavior tracking | Coming soon to Fi Mini Cats | AI-analyzed behavior tracking | AI-analyzed behavior tracking | AI-analyzed behavior tracking |
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Collar fits on
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Only Fi-affiliated Maker Bands | Most Collars and Harnesses | Most Collars and Harnesses | Only Fi-affiliated Maker Bands | Only Fi-affiliated Maker Bands | Only Fi-affiliated Maker Bands |
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Apple Watch
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Location updates on your wrist | Coming soon to Fi Mini Dogs | Coming soon to Fi Mini Cats | Location updates on your wrist | Location updates on your wrist | Location updates on your wrist |
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Made for
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Designed for all dogs who roam | Ideal for puppies & small dogs | Ideal for cats | Designed for all dogs who roam | Designed for all dogs who roam | Designed for all dogs who roam |
![New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, Large)](https://onewayonlinepetstore.com/wp-content/uploads/2026/02/19441f909ffcdaead30800792d067556-5.png)
![New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, Large) - Image 2](https://onewayonlinepetstore.com/wp-content/uploads/2026/02/8b94afcf10637c7168daf59acb0a24db-5.png)
![New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, Large) - Image 3](https://onewayonlinepetstore.com/wp-content/uploads/2026/02/265e0100a38f8ea7269cf25edf58f5d6-5.png)
![New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, Large) - Image 4](https://onewayonlinepetstore.com/wp-content/uploads/2026/02/4f54c47e8ac44ae9885952c7f33bae1b-4.png)
![New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, Large) - Image 5](https://onewayonlinepetstore.com/wp-content/uploads/2026/02/09eb3571a0ef557c1d54f8395b9261bc-3.png)
![New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, Large) - Image 6](https://onewayonlinepetstore.com/wp-content/uploads/2026/02/37fedb5ce59d87cb9d64adc439ebb0a5-3.png)
![New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, Large) - Image 7](https://onewayonlinepetstore.com/wp-content/uploads/2026/02/08870dc5dfcce52a708fb52658d2e11c-1.png)
![New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring, Escape Alerts, Waterproof, LED, Apple Watch Compatible (Blue, Large) - Image 8](https://onewayonlinepetstore.com/wp-content/uploads/2026/02/8690f27a2657c0f3f23003694b68556a-1.png)
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