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Head-to-head · Best Dog Gps Trackers

Fi Mini vs Fi Series 3+

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Fi Series 3+ comes out ahead by a narrow margin (3.9 vs 4.1). The gap is mostly about multi-dog households seeking reliable tracking — read the strengths below before deciding.

Fi Mini
Ranked #4 in Best Dog Gps Trackers
Fi Mini
4 sources1 derived$189as of Jul 31

The Fi Mini GPS tracker is praised for its unobtrusive design that doesn't bother pets wearing it, making it ideal for indoor cats that occasionally slip outdoors. PCMag editors noted its reliable GPS tracking and long battery life, which minimizes the need for frequent recharging or maintenance. However, some reviewers found the feature set basic, lacking advanced analytics or offline tracking capabilities. This device is best suited for pet owners seeking simple, dependable location tracking rather than comprehensive pet monitoring systems.

Strengths
  • — Does not bother pets wearing it on their collars
  • — Offers good battery life with minimal maintenance required
  • — Provides reliable GPS tracking with real-time location updates
Watch-outs
  • — Limited to basic tracking features without advanced analytics
  • — Requires app setup and ongoing smartphone connectivity for full functionality
$189 · Check Price on AmazonFull review →
Fi Series 3+
Higher ratedRanked #3 in Best Dog Gps Trackers
Fi Series 3+
4 sources2 derived$189as of Jul 31

The Fi Series 3+ is a lightweight GPS tracker weighing just 28g, representing a 25% reduction from its predecessor. Reviewers praised its improved attachment links and reliable location tracking with geofencing capabilities. The device offers sleep and activity monitoring, making it suitable for escape-prone dogs and scent-driven breeds. However, some users noted the lack of a black color option and concerns about the collar's floppy fit potentially causing noise issues. The device requires a subscription service for full functionality, which some reviewers found disappointing. This tracker is best suited for multi-dog households seeking reliable location tracking rather than virtual boundary training.

Strengths
  • — Lightweight design at 28g, a 25% weight reduction from Series 2
  • — Stronger attachment links compared to previous models
  • — Provides reliable GPS tracking with geofencing alerts
Watch-outs
  • — No black color option available
  • — Collar can be floppy and make noise if not fitted tightly
  • — Requires subscription service for full functionality
$189 · Check Price on AmazonFull review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

Fi Mini

The Fi Mini excels in unobtrusiveness and long battery life compared to the Tractive Dog 6 and Tractive Dog 6 Smart Dog Tracker, which both require subscriptions and offer more advanced features. Unlike the more feature-rich Fi Series 3+, it lacks activity monitoring and sleep tracking, making it a simpler but less comprehensive option for indoor cats.

Fi Series 3+

The Fi Series 3+ offers a significant weight reduction and improved attachment compared to the Tractive Dog 6, but it lacks the health monitoring features and global cellular coverage that make the Tractive Dog 6 a more comprehensive solution. Unlike the Tractive GPS Dog LTE tracker, it doesn't offer LTE connectivity, limiting its usefulness in areas with poor GPS signal.

Specs side-by-side

SpecFi MiniFi Series 3+
Battery LifeUp to 6 monthsUp to 3 Months
Water ResistanceIP67IP68 & IP66K
TrackingGPS + cellularGPS
Weight0.6 oz0.99 oz
Connectivity—Smart collar with app
Subscription—required, plus a one-time activation fee
Features—Geofencing, Sleep tracking, Activity monitoring
← See the full ranking of best dog gps trackers