Description
A smart GPS tracker that shows where your pet is, right now. Unlike Bluetooth tags and AirTag, it has its own eSIM and GPS module inside, so it does not depend on other people's phones nearby and works at any distance - as long as there is a mobile network. In the application, you see a live route updated every few seconds, and the search function leads to the pet with an arrow and shows how many meters away it is. Separately, the tracker monitors activity: steps, play and rest time, calories burned - convenient for keeping your dog or cat in shape. The new version of the tracker additionally takes the pulse: you see the heart rate at rest and during exercise, and the application itself analyzes the data: it accumulates the range familiar to your pet and, if the deviations are serious, sends a notification to your phone. This is a hint to show your pet to a doctor, not a diagnosis. The body is lightweight (30 g) and protected according to the IP67 standard, so swimming and rain are not a problem for it. Charges on a wireless stand in a couple of hours. Attaches with a Velcro strap to any collar or harness.
Features
- Live search in real time: the pet's point on the map is updated approximately every 10 seconds, and the application leads to it with an arrow and shows the distance.
- No range limitation: it works via a mobile network with a built-in eSIM, and not via Bluetooth - you will find your pet in the next yard or outside the city.
- Pulse under control: the sensor on the collar records the heart rate at rest and during activity - you see the dynamics in the application and notice deviations from the normal norm for your pet.
- Monitors your pet and warns itself: the application constantly analyzes the pulse and activity, compares them with the normal norm for your pet - and in case of serious deviations, it sends a notification to your phone so that you do not miss the moment when it is time to show your pet to the doctor.
- Activity monitoring: steps, active and quiet minutes, calories burned - helps keep your pet in shape and see if he has enough walks.
- Lightweight and unnoticeable: only 30 grams, the size of a finger battery, attached to any collar with a reliable Velcro strap.
Specifications
| Brand | Fernpaw |
| Pet | Dogs and cats |
| Connection | GPS + mobile network (built-in eSIM) |
| Geolocation update | Every ~10 seconds |
| Range | Unlimited (works over cellular network) |
| Health control | Pulse (HR) at rest and during exercise |
| Activity control | Steps, activity, rest, calories |
| Data Analysis | The application tracks the indicators and compares them with the pet’s norm. |
| Notifications | Push notification for serious deviations in heart rate or activity |
| Water protection | IP67 (rain, puddles, swimming) |
| Weight | 30 g |
| Size | Less than 60 mm - about the size of a AA battery |
| Charger | Wireless pad, ~5 hours |
| Autonomy | Several days (up to 2 weeks with good coverage) |
| Fastening | Velcro strap for collar or harness |
What does it show about your pet's health?
The tracker does not treat or make diagnoses - it shows numbers that you yourself would not notice, and helps to catch the moment when something is wrong with your pet.
Pulse (HR)The sensor records heart rate at rest and during exercise. The application remembers your pet's usual range and shows when the indicators are out of it.
Activity and restSteps, active minutes, sleep time. A sharp drop in activity or unusually long sleep is one of the first signals that it is worth taking a closer look at your pet, noticeable in numbers earlier than in the pet’s behavior.
Dynamics by weekYou can see not just one-off bursts, but a trend: the pet gradually began to move less, it takes longer to recover after a walk, and the night’s rest has changed.
🔔 Analyzes and warns itselfYou don't need to study charts every day. The application itself compares the indicators with the normal norm for your pet and in case of serious deviations, sends a notification to your phone - so that you don’t miss the moment when something went wrong.
When should you take your pet to the doctor?
If you receive a notice of a serious abnormality, this is a reason to take a closer look at your pet and show it to a doctor. The decision is always yours, here are the signs to look out for:
- Resting heart rate is consistently higher or lower than usual for your pet for several days in a row.
- Sharp drop in activity — the pet began to walk and play noticeably less for no apparent reason.
- Sleeps much longer than usual or, conversely, is restless and cannot lie down.
- Long recovery after exercise — I used to get back to normal quickly, but now I don’t.
- Any of these changes along with changes in appetite, gait or habitual behavior.
Don't wait for statistics if your pet suddenly gets worse. If there is a sharp deterioration in health, unusual behavior for your pet, or refusal of water, immediately contact a veterinary clinic - the application in such cases is not an indicator.
Not sure what the numbers on the app say, or which tracker is right for your pet? Ask our veterinarian for free →
Characteristics and features are given according to the manufacturer. This product is intended for everyday use with pets and is not a veterinary or medical product. If your pet has a medical condition, consult your veterinarian.
Customer Reviews
Product reviews are provided by the manufacturer and translated into Russian. The rating and date are saved.
Pablo N.July 10, 2026
The cat ran away - found it in 6 minutes
The cat ran out into the entrance and disappeared. I opened the application - I saw its point on the map in real time, the arrow led directly to the neighboring yard. Previously, I would have searched until night. Now I walk in peace.
Fernpaw's answer
It's good that the tracker helped find the cat in a few minutes. We are glad that the map and arrow gave you peace of mind in such a nervous situation.
Nina N.July 13, 2026
The accuracy in the forest was surprising
I take the dog to the dacha, where he runs around the forest without a leash. The tracker shows the route with almost no delay and is updated every few seconds. Once I ran after a roe deer - I reached it along the arrow in about ten minutes.
Fernpaw's answer
Thank you for sharing your dacha experience. We are glad that the tracker confidently showed the route in the forest and helped us quickly reach the dog.
Kristina L.July 16, 2026
Great, but needs to be charged every few days
It works as it should, it catches even outside the city. The only thing is that the charge lasts for several days, not for a month, so I charge it on weekends. But the stand is wireless, throw it and forget it. Activity counts - now I see that the dog really doesn’t walk much.
Fernpaw's answer
Thanks for your honest review! In the new version of the tracker, we just fixed this - we installed a new generation battery, and the charge now lasts for about a month. True, the weight has increased slightly, by 15 grams. And the habit of putting it on a wireless stand on weekends definitely won’t hurt :)
Freya E.July 18, 2026
Activity is an unexpected bonus
I took it for the sake of searching, but got stuck on the statistics: steps, calories, how much I played and slept. The veterinarian told me to walk him more - now I can see the norm based on the numbers. The strap holds tightly and has never come off.
Fernpaw's answer
It's great that the activity statistics turned out to be as useful as the search. We are glad that the strap holds tightly, and the numbers help you keep track of your walks.
Manon C.July 21, 2026
I survived the swim calmly
Labrador gets into every puddle and lake. I was worried about the electronics, but the IP67 did not let me down - it floats with the tracker, everything works. Lightweight, the dog doesn’t notice it at all.
Fernpaw's answer
Thank you, we are glad that the tracker calmly survived the puddles and the lake with the Labrador. It’s good that it’s light and the dog doesn’t notice it.
Elena M.July 24, 2026
Peace of mind for your pet
The main thing is that you no longer panic if you forgot to close the gate. I opened the phone, saw where the dog was, and went and got it. It can be set up in five minutes, the map is clear.
Fernpaw's answer
Thank you! It was precisely this calmness at the gate that was one of the main tasks of the tracker - I opened the card, saw the pet and went to pick it up.
