Fi New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring…
Best for
Best with health & activity tracking
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$84.00
Updated Jun 27, 2026 · 1 min read
![Fi New Series 3+ Smart Dog Tracker Collar [6 Month Membership Included] GPS Tracker for Dogs with Health & Behavior Monitoring…](/_next/image?url=%2Fimages%2Fproducts%2Fa70723ec0227a0a0.jpg&w=3840&q=75)
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the Fi Series 3+ is the most feature-loaded everyday smart collar here, but also the most polarizing. Unknown-trust enthusiast sites are upbeat—lifewithkleekai.com calls it the best overall smart GPS collar for its all-in-one design, doggearreview.com cites 4–5 weeks of battery life and live lost-dog tracking, and rebarkable.com says the new generation fixes the older weak-attachment problem. The collar's health and behavior monitoring, escape alerts, and LED draw repeated mention.
What reviewers liked
- Health and behavior monitoring plus escape alerts and LED make it the most feature-rich everyday collar in this list
- Enthusiast reviewers cite 4–5 weeks of battery life and reliable live lost-dog tracking
- Long-term r/FiDogCollar users report accurate tracking refreshing roughly every 60 seconds
Where it falls short
- Multiple r/FiDogCollar threads call Series 3 tracking 'abysmal' and less accurate than the prior generation
- Community members describe the build as cheaply made and note the collar band loosening during walks
- Requires an ongoing membership, and Amazon's 4.0–4.1 average reflects a divided owner base
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Across the reviewers we read, the Fi Series 3+ is the most feature-loaded everyday smart collar here, but also the most polarizing. Unknown-trust enthusiast sites are upbeat—lifewithkleekai.com calls it the best overall smart GPS collar for its all-in-one design, doggearreview.com cites 4–5 weeks of battery life and live lost-dog tracking, and rebarkable.com says the new generation fixes the older weak-attachment problem. The collar's health and behavior monitoring, escape alerts, and LED draw repeated mention. However, the medium-trust r/FiDogCollar community is sharply split: long-term owners report spot-on live tracking refreshing about every 60 seconds and week-plus battery life, while other threads call the Series 3 tracking data 'absolutely abysmal,' describe the collars as 'cheaply made and poorly designed,' and one even titles a post 'Fi Series 3 seems to be a scam.'
- 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.
- 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.
I've been using one now since 2019. I've several times tested the live tracking, and it's been spot on, refreshes about every 60 seconds. If I ...
GPS accuracy - Probably depends on what your accuracy was before. · Real-time tracker - I haven't noticed a huge difference with this either.
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“Watch BEFORE you Buy the Fi Series 3+ Smart Collar ...” · YouTube
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