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.
Full review
Real-World Performance
Fi Series 3+ GPS dog collars deliver reliable real-world tracking performance, with users reporting consistent location accuracy within a 6-foot radius, as measured by the 78 GPS satellites the device utilizes. The collar's integration with AT&T's LTE-M network enables extended battery life of up to three months in light-use scenarios, while active tracking reduces this to approximately four to five weeks with regular daily use. According to Lifewithkleekai.com, the device has demonstrated consistent performance over multiple years of usage, with one reviewer noting that their dogs' collars required charging only three times over six months. The Fi Base system, which connects to Wi-Fi when the dog is near home, significantly conserves battery by switching between cellular, Wi-Fi, and Bluetooth communication modes. Users have reported successful tracking during off-leash adventures and emergency situations, such as when a dog escaped during a trail run, with the app providing accurate real-time location updates.
Professional reviewers like those at Doggearreview.com emphasize that the Fi Series 3+ excels in its ability to maintain tracking reliability even in areas with patchy cellular coverage. The device's signal sensitivity, which is 100% better than conventional cellular networks, reportedly allows for tracking in remote locations where other trackers fail. However, the system's performance is dependent on the AT&T network, which limits its usability outside of the United States and parts of Canada. The collar's ability to switch between different tracking modes—Bluetooth when near the owner, Wi-Fi when within range of the base, and GPS when away—ensures optimal battery conservation while maintaining location accuracy. Users have also noted that the device's LED light, though not particularly bright, provides a useful visual aid in low-light conditions and can be controlled remotely through the app.
Stainless frame rated to 500 pounds of force
The Fi Series 3+ features a sleek, lightweight design weighing only 28 grams, a significant improvement over the Series 2's 40 grams, making it suitable for smaller dogs without compromising durability. Constructed with a full stainless steel body frame rated to withstand 500 pounds of static force, the collar is built to endure even the most boisterous dogs. According to Lifewithkleekai.com, the device has shown resilience against wear and tear, with only light scratches appearing after extended use on trails and in rough environments. The collar's attachment system has been redesigned to be more robust and less prone to breaking compared to the Series 2 model, though this change means that older Series 2 collars cannot be used with newer Series 3+ hardware. The magnetic charging base, which replaces the older plug-in charger, is described as more convenient and hi-tech, allowing for quick and easy charging by simply snapping the collar onto the base. The device's IP68 and IP66K ratings ensure it is waterproof and dustproof, suitable for all-weather use, including swimming and muddy conditions.
The collar's design includes a quick-release buckle and loop for dog tags and leash attachment, along with a D-ring that can accommodate metal tags. However, users have noted that long metal tags may hit the GPS unit during movement, suggesting the use of soft tags or tag silencers. The LED light on the collar is customizable with multiple color options but tends to face downward due to the unit's weight, limiting its visibility from a distance. Despite this limitation, the light is useful for visibility in dark conditions and is easily controlled through the app. The Fi Series 3+ is available in four standard colors, with additional XS and XL sizing options to accommodate a wide range of dog sizes. The overall build quality has been praised for its sturdiness and comfort, with users reporting that their dogs quickly adapt to wearing the collar without discomfort or resistance.
Charged just 3 times in 6 months
Reviewers consistently praise the Fi Series 3+ for its exceptional battery life, which can last up to three months in light-use scenarios and four to five weeks with regular daily use. The magnetic charging base is frequently highlighted as a convenient feature, eliminating the need for cables and making charging quick and hassle-free. According to Lifewithkleekai.com, one reviewer noted that their dogs' collars required charging only three times in six months, surpassing expectations for battery longevity. The device's ability to switch between Wi-Fi, Bluetooth, and GPS tracking modes ensures optimal power conservation while maintaining reliable location data. Users have also appreciated the app's intuitive interface and the comprehensive tracking features, including activity monitoring, sleep tracking, and geofencing capabilities. The collar's ability to alert owners when dogs leave designated safe zones is considered particularly valuable for escape-prone dogs.
The Fi Series 3+ is lauded for its reliable real-time tracking and accurate location data, with users reporting successful tracking during off-leash adventures and emergency situations. The device's integration with AT&T's LTE-M network allows for extended battery life and reliable performance in remote areas. The app's leaderboard feature, which compares a dog's activity to other Fi users, is appreciated for motivating owners to take their pets on more walks and trail runs. Additionally, the collar's ability to track sleep patterns and activity levels provides valuable insights into a dog's health and well-being. The device's durability and chew-proof construction, combined with its lightweight design, make it suitable for active dogs and those prone to destructive behavior. Many reviewers also commend the collar's ease of setup and the straightforward process of transferring data from older Series 2 collars to the newer Series 3+ model.
Works only on AT&T's cellular network
Despite its many strengths, the Fi Series 3+ has several notable drawbacks that reviewers have pointed out. The most significant limitation is its exclusive reliance on AT&T's cellular network, which restricts its usability outside of the United States and parts of Canada. This restriction is a major concern for international users and those living in areas with poor AT&T coverage. Additionally, the device's LED light, while customizable, is not particularly bright and tends to face downward, limiting its visibility from a distance. Some users have reported occasional false alarms from the geofencing feature, which can be frustrating and lead to unnecessary alerts. The collar's attachment system, while more robust than the Series 2, requires users to purchase new hardware if they own a Series 2 collar, creating compatibility issues for existing users.
Another concern raised by reviewers is the subscription model, which requires users to pay for ongoing service to access full tracking features. While the initial hardware purchase is straightforward, the ongoing monthly fees can add up over time. Users have noted that the app's interface, while generally intuitive, can be confusing in certain areas, such as setting up the LED light color options. Some reviewers have also mentioned that the device's performance can be affected by environmental factors, such as being too close to or too far from the Fi Base, which can interfere with signal strength. Additionally, the device's reliance on Wi-Fi for optimal performance means that users must maintain a stable internet connection at home to fully utilize the battery-saving features.
Recommended for high-prey-drive breeds like coonhounds
The Fi Series 3+ is ideal for dog owners who prioritize reliable GPS tracking and want a device that can withstand active lifestyles. It is particularly well-suited for escape-prone dogs, scent-driven breeds, and multi-dog households where tracking is essential. According to Rebarkable.com, the collar is recommended for dogs with high prey drives, such as coonhounds, who are prone to wandering off and getting lost. The device is also beneficial for owners who want detailed activity and sleep data to monitor their pet's health and well-being. The collar's lightweight design and durability make it suitable for dogs of various sizes, from small breeds to large dogs weighing up to 500 pounds. Users who frequently take their dogs on hiking trips or outdoor adventures will appreciate the extended battery life and reliable tracking capabilities.
The Fi Series 3+ is best suited for owners who live in areas with strong AT&T coverage and are willing to commit to a subscription-based service model. It is particularly valuable for owners who want to track their dogs' activity levels, sleep patterns, and location data in real-time. The device is not recommended for users who live outside the United States or parts of Canada, as the device will not function without AT&T's cellular network. Additionally, it may not be the best choice for owners who want a virtual boundary system, as the Fi Series 3+ is designed primarily as a tracking device rather than a GPS fence. The collar is also not ideal for those who prefer a one-time purchase model, as ongoing subscription fees are required for full functionality.
Better battery life than Tractive narrower coverage
When compared to other GPS dog collars, the Fi Series 3+ stands out for its extended battery life and reliable tracking performance, particularly in remote areas where other trackers may fail. The device's integration with AT&T's LTE-M network provides a significant advantage over competitors that rely on standard cellular networks. However, its reliance on AT&T's network limits its usability compared to alternatives like Tractive, which offer broader coverage and more flexible pricing models. According to Lifewithkleekai.com, the Fi Series 3+ offers better battery life than many competing devices, with users reporting that their collars lasted up to three months in light-use scenarios. The device's activity and sleep tracking features are also competitive with other premium trackers in the market. The collar's durability and chew-proof construction are notable advantages over less robust alternatives, though some competitors offer more affordable one-time purchase models without ongoing subscription fees.
In contrast to the Tractive GPS collar, which offers broader network coverage and more flexible pricing, the Fi Series 3+ provides superior battery life and more accurate location tracking in remote areas. The Fi collar's ability to switch between Wi-Fi, Bluetooth, and GPS modes for optimal battery conservation is a key differentiator. However, the Fi Series 3+ requires a subscription for full functionality, which may be a drawback for users who prefer one-time purchase models. The device's app is generally well-received, though some users have noted that it can be more complex than competing apps. The Fi Series 3+ also offers better sleep tracking and activity monitoring features compared to many alternatives, making it a strong choice for health-conscious pet owners.
Battery life stretches replacement cycles further
The Fi Series 3+ offers strong value for money considering its extended battery life, reliable tracking performance, and comprehensive feature set. The device's ability to last up to three months in light-use scenarios and four to five weeks with regular daily use provides excellent long-term value. According to Doggearreview.com, the collar's battery life significantly exceeds that of many competing devices, making it a cost-effective choice for active dog owners. The device's durability and chew-proof construction, combined with its lightweight design, ensure that it can withstand the wear and tear of active dogs without requiring frequent replacements. The magnetic charging base adds convenience and eliminates the need for cables, further enhancing the overall value proposition. While the ongoing subscription fees are a consideration, the device's performance and features justify the cost for users who prioritize reliable GPS tracking and detailed activity monitoring.
The Fi Series 3+ is priced competitively within the premium GPS dog collar market, offering features that justify its cost for users who need reliable tracking and comprehensive health monitoring. The device's ability to provide real-time location updates, activity data, and sleep tracking makes it a valuable investment for pet owners who want to monitor their dogs' well-being. The collar's extended battery life and robust construction also contribute to its overall value, as users can expect long-term performance without frequent replacements or repairs. While the subscription model may be a drawback for some users, the device's performance and features make it a worthwhile investment for those who prioritize reliable GPS tracking and detailed health monitoring.
Only light scratches after extended trail use
Long-term durability testing of the Fi Series 3+ has shown consistent performance over multiple years of usage, with users reporting that their collars have maintained functionality despite regular wear and tear. According to Lifewithkleekai.com, the device has proven resilient against scratches and damage from outdoor activities, with only light surface wear appearing after extensive use on trails and in rough environments. The collar's stainless steel construction and IP68/IP66K rating ensure it can withstand water, dust, and physical stress, making it suitable for all-weather use. Users have noted that the device's magnetic charging base is also durable and reliable, with no reported issues after months of regular use. The collar's ability to maintain its structural integrity and electronic functionality over time is a testament to its quality construction and materials.
The Fi Series 3+ has demonstrated strong long-term reliability, with users reporting consistent performance over several years of daily use. The device's battery life, which can last up to three months in light-use scenarios, is a significant advantage that reduces the frequency of charging and maintenance. The collar's ability to switch between different tracking modes—Wi-Fi, Bluetooth, and GPS—ensures optimal power conservation while maintaining location accuracy. Users have also noted that the device's LED light, while not particularly bright, remains functional and visible in low-light conditions. The device's compatibility with the Fi Base system, which connects to Wi-Fi when the dog is near home, significantly conserves battery power and enhances overall performance. The collar's overall durability and reliability make it a solid investment for pet owners seeking a long-term tracking solution.
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
- +Includes sleep tracking and activity monitoring features
- +IP68 and IP66K water resistance ratings
Watch-outs
- −No black color option available
- −Collar can be floppy and make noise if not fitted tightly
- −Requires subscription service for full functionality
How it compares
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.
Rating sources
“Yes, I recommend the Fi Series 3—and not cautiously. We have used it every day since release, it is still our go-to tracker for Lucy and Shelby, and honestly? I cant sing its praises highly enough.”
“In my opinion, the sleek design is still one of the best dog trackers on the market today. In this case, I’m on board with the age old saying of “if it ain’t broke, don’t fix it”.”
Our 4.1 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
