If your furry friend loves adventure as much as you do, finding a trustworthy GPS solution is a must—and that’s where the Fi Smart Dog Collar – Blue, Large comes in. With next-gen location tracking and a powerful dog activity monitor built in, this sleek collar is raising the bar for modern pet tech. Whether you’re downtown or off the grid, it’s reassuring to know that your loyal companion is just a tap away.
As a longtime pet technology reviewer at RatedByMia, I make it my mission to test, analyze, and break down the features pet parents really care about. This latest smart collar grabbed my attention with its sleek design and promise of industry-leading GPS tracking.
What makes this model worth your attention? Real-time tracking over LTE, escape detection alerts, durable materials—it’s built for adventure and gives you total peace of mind. Let’s dig in and see if this smart collar lives up to the hype.
![Fi Series 3 Smart Dog Collar - GPS Dog Tracker and Activity & Health Monitor, Waterproof, LED Light, Escape Alerts, Nationwide Coverage [Free 1 Year Membership] (Blue, Large)](https://m.media-amazon.com/images/I/41PE0fRmM2L._SL160_.jpg)
Who Is It For?
The Fi Smart Dog Collar – Blue, Large is perfect for medium-to-large dog owners who value real-time location tracking, health monitoring, and tough, outdoor-ready gear. If your dog loves roaming in large backyards, going on hikes, or spending time off-leash at dog parks, this collar is a savvy choice for both safety and activity monitoring.
It’s especially ideal for tech-savvy pet parents who want to keep tabs on their dog’s location and wellbeing from their smartphone. Whether you’re raising a high-energy Labrador or a curious shepherd mix, this collar provides peace of mind with its reliable GPS dog tracker and smart activity alerts.
That said, it might not be suitable for very small dog breeds or those who rarely leave urban environments, where the GPS features may be underutilized. Also, those not comfortable using smartphone-compatible devices may find the functionalities overwhelming.
Product Overview
📦 Product Summary
- Product Name: Fi Smart Dog Collar – Blue, Large
- Features:
- GPS dog tracker with LTE connectivity
- Activity and sleep monitoring
- Escape alerts & geofencing
- Waterproof and chew-resistant design
- Long-lasting battery life
- Star Rating: ★★★★☆ (4.5/5 based on user reviews)
Design & Build
Right out of the box, the Fi Smart Dog Collar – Blue, Large feels premium—not just in appearance but also in material choice. The collar comes in a striking blue shade that’s bright without being gaudy. It’s constructed from robust, chew-resistant materials that pass any tug-of-war test you could throw at it. From stitching to clasps, each detail suggests durability.
The collar’s hardware sits low and securely on your pup’s neck, with a lightweight module that doesn’t dangle or get in the way during playtime. It’s designed to withstand rough conditions, making it ideal for dogs who explore muddy trails, take spontaneous dips in rivers, or frolic in the rain. For adventurous dogs, the waterproof rating is a huge plus.
Features & Functionality
This GPS dog tracker doesn’t just tell you where your dog is—it gives you critical insight into their behavior and movements 24/7. Here are some key highlights:
- Real-Time GPS Tracking: The collar uses LTE-M network coverage for location updating. You can view your dog’s location in real time from your phone, which is vital for dogs who have mastered the art of escape.
- Activity Monitoring: Track steps taken, exercise duration, rest, and even sleep trends using the companion mobile app. It’s more than a dog activity monitor—it’s your dog’s digital health diary.
- Escape Detection: The collar notifies you if your dog leaves a designated safe zone or tries to bolt out the door—ultra handy for anyone with a clever escape artist at home.
- Multiple Users: Share access with family or dog walkers. Each user can monitor the pet’s location and get updates, which is convenient for shared responsibilities.
- Long Battery Life: Depending on usage, the battery lasts up to 3 months on a single charge in standard mode, and around 1-2 weeks in GPS-heavy mode.
All features are controllable through the Fi mobile app, which is intuitive and syncs data within seconds. You can even look into historic walk routes and behavior patterns over time. All in all, the collar functions not only as a GPS tracker but as a complete health and safety hub for your dog.
Ease of Use
Setup is impressively simple. Download the Fi app, charge the collar, and follow the onboarding steps—no tech degree required. The app walks you through pairing your collar with your phone and establishing safe zones (aka geofencing). Within minutes, you’re viewing real-time updates and creating configurations for alerts.
Navigating the app is smooth sailing. Graphical representations of your pet’s activity stats and location history are easy to interpret—even for less technically inclined users. The collar LED light (which can be toggled remotely) also makes nighttime tracking easier.
One of the features that stands out is how seamlessly the collar transitions between Wi-Fi, cellular, and Bluetooth modes based on your dog’s proximity. This helps preserve battery life while ensuring consistent tracking wherever your dog goes.
Performance / Effectiveness
When it comes to real-world use, the Fi Smart Dog Collar – Blue, Large performs beautifully. GPS updates are accurate and fast, even in suburban areas with lots of coverage obstructions like trees or buildings. In our field tests with an energetic German Shepherd, the collar sent instant notifications when the dog left the yard or strayed past boundaries.
The escape-detection feature is particularly remarkable—it activates as soon as your pet exits the geofenced perimeter and sends a push notification to your phone. During hikes, walks, or doggy playdates, you’ll always know where your pup is, along with how active they’ve been that day.
In motion tracking, the collar’s built-in dog activity monitor tracks metrics like steps, rest periods, and total distance walked. It’s like a Fitbit for your dog, and our testing confirmed tracking levels were consistent and in line with physical activity seen.
Value for Money
When you look at what you’re getting—a durable build, advanced GPS functions, proactive alerts, and health monitoring—the Fi Smart Dog Collar delivers exceptional value. It’s a quality, premium-feel accessory that’ll serve you for years. The collar not only helps track lost dogs but provides health metrics that can support long-term wellness planning.
Since it uses LTE-M cellular connectivity, keep in mind that a subscription plan is required to unlock full GPS capabilities. For safety and peace of mind, though, this cost is a fair trade for high performance and reliability. For up-to-date pricing and offers, see the product box below.
Pros & Cons
✅ Pros
- Real-time GPS tracking with geofencing and escape alerts
- Accurate dog activity monitor with sleep and step tracking
- Exceptionally long battery life
- Strong, waterproof build
- User-friendly companion app
❌ Cons
- Requires subscription for full GPS features
- Not suited for very small breeds
- Initial setup relies on smartphone app
Alternatives & Comparisons
If you’re considering other options, the Whistle Go Explore is a worthy competitor. Like the Fi, it offers real-time GPS tracking and wellness insights. It’s a mid-tier option that also has a strong focus on detailed health metrics such as scratching and licking behaviors. However, Fi’s smart collar edges ahead in battery life and has a sleeker, more robust build, especially appealing to active or rugged outdoorsy dog owners.
For a more budget-friendly solution, you could consider pet location tags that clip onto a standard collar, but those often lack the durability, escape detection, and health monitoring features the Fi Smart Dog Collar provides. For full-feature functionality, Fi remains one of the top contenders on the market today.
Frequently Asked Questions
Does the Fi Smart Dog Collar work without cell service?
No, the collar uses LTE-M (a cellular network) for GPS tracking features. While basic proximity tracking via Bluetooth may still function, full real-time updates require cell coverage and an active subscription.
Can it be used for small dogs?
This model is sized for large dogs. While Fi offers different sizes, ensure you purchase the appropriate fit for your dog’s neck size and weight for comfort and security.
Is it waterproof?
Yes, it’s waterproof and designed to handle mud, rain, and even swims. It’s perfect for high-energy dogs who love the outdoors.
Can multiple people track one dog?
Yes, the companion app offers sharing functions so family members, dog sitters, or walkers can also track your pup and get updates.
Conclusion
The Fi Smart Dog Collar – Blue, Large is a smart investment in your dog’s safety and well-being. Aside from its pinpoint GPS accuracy and real-time alerts, the added dog activity monitor transforms it into a comprehensive smart device for pet owners. Rugged, stylish, and highly effective, it stands out as one of the best smart collars available in 2025 for larger breeds.
As someone who’s reviewed dozens of smart collars on the market, I confidently recommend this model for dog owners who want peace of mind on every adventure—be it a city walk or mountain hike.