10 Best Pet Trackers 2025 in the United States

The Fi New Series 3+ Smart Dog Tracker Collar is designed to keep a close eye on your dog’s location and health with its GPS tracking and behavior monitoring features. It offers accurate GPS tracking enhanced by AI, which helps ensure you know exactly where your dog is, and it includes escape alerts and a virtual fence to notify you if your pet leaves a designated safe area. The collar is lightweight at just 47 grams (or 1.66 ounces), making it comfortable for larger dogs. It’s also waterproof, so it can handle outdoor adventures and wet conditions without damage. Battery life is generally strong thanks to its lithium-ion battery, and the product includes a 12-month membership for the tracking service, though continued use will require subscription fees after this period. The device connects with Apple Watch, adding convenience for iPhone users.

The collar is sized for extra-large dogs, so it might not fit smaller pets well. Some users might find the subscription fees a bit of an ongoing cost to consider. The warranty lasts 6 months, which is somewhat short. With a solid customer rating around 4.2 out of 5, it is reliable for pet owners looking for a durable, accurate tracker with health monitoring and smart alerts, especially if you have a larger dog and want integration with Apple devices.

The Garmin Alpha 300i is a powerful handheld GPS tracker and training system designed especially for tracking dogs, making it ideal for hunters or active dog owners who manage multiple dogs at once. It offers highly accurate GPS tracking with updates every 2.5 seconds and a solid range of up to 9 miles, allowing you to monitor your dogs' locations in real time. The 3.5-inch touchscreen is responsive and easy to use, even with gloves on, which is handy outdoors.

One strong point is the long battery life—up to 55 hours on a single charge—so you can rely on it for extended trips without frequent recharging. The system supports tracking for up to 20 dogs and includes features like real-time alerts for activities such as when a dog is “treed” or “on point,” which can be very useful for hunters. The included dog collar is lightweight, rugged, waterproof, and equipped with LED lights for visibility in low light. It uses a combination of GPS and radio frequencies to maintain a clear signal and avoid interference, enhancing reliable tracking.

The device is somewhat bulky at 3.4 pounds for a handheld tracker, which might feel heavy compared to simpler pet trackers. If you need advanced tracking and training combined with safety features and can handle a larger, professional-grade device, this Garmin system is an excellent choice. Casual pet owners looking for a simple tracker might find it more complex and sizable than necessary.

The Fi Series 3+ Smart Dog Collar is a strong choice for dog owners who want dependable GPS tracking with nationwide coverage and no range limits. Its improved GPS antenna helps you locate your dog quickly in real time, which is great if your pet tends to roam. The collar includes helpful escape alerts and a Lost Dog Mode that gives rapid updates when your dog leaves a safe area. At 77 grams and designed as a large size, it’s fairly lightweight but may be a bit bulky for smaller dogs. The collar is waterproof, so it can handle rain or puddles during walks.

Battery life details are based on its 285mAh capacity and the inclusion of features like an LED light and constant tracking, indicating users will need to charge it regularly—likely every few days to a week depending on usage. Activity monitoring goes beyond just steps; it uses AI to track behaviors such as barking, licking, scratching, and eating, which provides a fuller picture of your dog’s health. Integration with Apple Watch and smart vet record storage adds convenience for tech-savvy owners.

After the free 6-month membership, a subscription fee is required for full GPS and app services, which is common for this type of device but worth considering. This collar delivers top-tier tracking and health features for dog owners who want peace of mind and detailed insights, though the subscription and battery charging routine might be less ideal for those seeking a simple, low-maintenance tracker.