Head-to-head · Best Dog Gps Trackers

Fi Series 3+ vs Tractive Dog 6 Smart Dog Tracker

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

Tractive Dog 6 Smart Dog Tracker comes out ahead by a clear margin (4.1 vs 4.4). The gap is mostly about active dog owners seeking wellness insights — read the strengths below before deciding.

Ranked #3 in Best Dog Gps Trackers

Fi Series 3+

4.1

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 Amazon Full review →

Higher ratedRanked #1 in Best Dog Gps Trackers

Tractive Dog 6 Smart Dog Tracker

4.4

3 sources1 derived$99as of Jul 31

The Tractive DOG 6 is a compact GPS tracker and health monitor designed for dogs over 9 lbs, weighing just 1.4 oz with IP68 waterproofing. Reviewers praised its up to 2-week battery life, global LTE-M and 2G coverage across 175+ countries, and expanded health monitoring including heart rate and bark detection. The device charges via USB-C and includes virtual fence alerts and live tracking. However, it requires a subscription and won't function in areas without cellular coverage. The tracker is suitable for active dog owners seeking location and wellness insights but may not meet needs in remote regions.

Strengths

— Up to 2 weeks battery life on standard model, 6 weeks on XL version
— IP68 waterproof rating allowing full submersion
— Global cellular coverage across 175+ countries with built-in SIM

Watch-outs

— Requires subscription for full functionality
— Relies entirely on cellular coverage, not usable in remote areas without signal
— Some health features are Premium-only

$99 · Check Price on Amazon Full 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 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.

Tractive Dog 6 Smart Dog Tracker

The Tractive Dog 6 Smart Dog Tracker offers the most comprehensive health monitoring features including heart rate and bark detection compared to the Tractive Dog 6, which has a similar feature set but with more limited health insights. It also provides better battery life and global cellular coverage than the Tractive GPS Dog LTE tracker, though it requires a subscription like the Tractive Dog 6.

Specs side-by-side

Spec	Fi Series 3+	Tractive Dog 6 Smart Dog Tracker
Connectivity	Smart collar with app	LTE
Battery Life	Up to 3 Months	Up to 2 weeks
Water Resistance	IP68 & IP66K	IP68
Tracking	GPS	GPS + cellular
Weight	0.99 oz	1.4 oz
Subscription	required, plus a one-time activation fee	starting at $5 / month
Features	Geofencing, Sleep tracking, Activity monitoring	Health Alerts, Activity & Sleep Monitoring

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