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PetFon VS Whistle TESTED – Our Favorite & Why

If you love spending time outdoors with your furry friend, a GPS dog collar is a must-have accessory.

But how do you know which one to buy? Most collars have similar features, so it’s the differences that could make one a better fit for your needs over others.

In this post, we’ll compare PetFon vs Whistle GPS collars to help you decide which is best for your pooch.

Products at a Glance

Subscription PlansNo subscription required2 plans – $9.95 per month or $69.95 lifetime
Multiple DogsUp to 3 dogs in the app but they all must have their own collarsAdd as many dogs as needed but recommend under 10. Each pet must have its own collar and subscription
Battery LifeRanges from 8 to 16 hours on a single chargeUp to 2 weeks on one charge
DurabilityDustproof and water resistant (not waterproof)Small, lightweight, shockproof & waterproof
TrackingReal-time location tracking and detailed activity monitoringGet an update every 15 seconds and personalize your dog’s activity goals and track your dog’s itching and water intake
Safe ZonesSet up a virtual fence and be alerted if your dog passes the boundary“Safe Places” so you can mark spaces that are safe for your dog and can create more than one safe zone

Overview of PetFon and Whistle

PetFon and Whistle help to bring your lost dog home
PetFon and Whistle help you keep track of your dog no matter where they roam.


PetFon is a pet tracking device that helps you keep tabs on your furry friend and monitors your pet’s health, including heart rate and activity level.

The small, lightweight device attaches to your pet’s collar and uses GPS to track its location.

You can then use the PetFon app to see where they are and set up virtual fences. If your pet goes outside of that virtual fence, you will get an alert.

The app also lets you see a history of your pet’s movements and activities and create custom profiles for multiple pets.

And if your pet ever gets lost, the tracker can help you find them quickly.

Whether you have a dog, cat, or another type of pet, the PetFon tracker is a helpful tool for keeping them safe and healthy.


This comprehensive pet tracking system gives pet owners peace of mind knowing that their furry friend is always safe and sound.

The Whistle GPS tracker system includes a GPS tracker attached to your dog’s collar.

The Whistle app then uses cell towers and Wi-Fi to determine your dog’s location and send you real-time updates, so you always know where they are.

You can also set up safe zones and get alerts if your dog leaves the area.

In addition, the Whistle app tracks your dog’s activity level and provides personalized recommendations to help them stay healthy and active.

The Whistle dog and pet tracker are essential for pet owners who want to keep their beloved furry friend safe and sound.

Read More: Tractive VS FitBark Tracker. We did the research to see how these trackers compare (and which is best)!

Features Compared

Whistle is a more popular choice for dog owners
The Whistle offers longer battery life than the PetFon and is a more popular choice amongst dog owners.

PetFon and Whistle are Pet trackers that help dog and pet owners find their lost animals.

They both use GPS tracking technology to pinpoint the location of a lost animal and provide other features such as activity monitoring, safe zones, and more.

Below, you will find an in-depth comparison of the features offered by each product.

Activity Monitoring

In terms of activity monitoring, PetFon offers more detailed tracking than Whistle.

PetFon will track how much time your animal spends active vs inactive, as well as the distance traveled and calories burned.

Whistle will track the amount of time your animal spends active, but not the other metrics tracked by PetFon.

Safe Zones

PetFon and Whistle allow you to set up safe zones for your animal.

If your animal leaves the safe zone, you will be notified so that you can take action to find them.

Additionally, PetFon allows you to set up multiple safe zones, whereas Whistle only will enable you to set up one.

Ease of Use

PetFon is very easy to set up and use. The tracker attaches to your animal’s collar easily, and the app is straightforward to navigate.

Whistle is also easy to set up and use. The tracker attaches to your animal’s collar similar to PetFon, and the app is easy to navigate.

Read our related article, Whistle vs FitBark. Is FitBark a better activity tracker or does Whistle take the cake? Let’s find out!


Accuracy depends on a few factors, such as whether you’re using GPS, cellular triangulation, or both.

PetFon uses both GPS and cellular triangulation to determine the location of your animal, so it is very accurate.

By using both, you will still get an accurate location when your pet is out of range of a GPS signal.

Whistle only uses GPS to determine the location of your animal, so it is less accurate than PetFon.

Watch the video below to see PetFon’s real-time tracking:

Read More: Fi VS AirTag. The Fi Dog Collar is a popular pet tracker, but does an AirTag do pretty much the same thing? Find out!

Battery Life

How long the battery of each tracker lasts depends on a few factors, such as the tracking method used and the frequency of location updates.

PetFon’s battery lasts up to 8 hours with continuous use or up to 16 hours with periodic updates.

Whistle’s battery lasts up to 7 days with constant use or up to 14 days with periodic updates.


PetFon and Whistle both offer a built-in LED light that can be turned on remotely, making it easier to find your animal in the dark.

PetFon also offers a Barking Alert feature that notifies you when your animal is barking excessively.

This could be useful if you want to check on your animal’s well-being or see if they are barking at something suspicious. Whistle does not offer this feature.


PetFon has no monthly subscription fee, but the tracker costs $129.

Whistle has a monthly subscription fee of $9.99, and the tracker costs $49.99.

Read More: Tractive VS Findster. We put these two popular GPS dog trackers to the test to see which is best!


Both GPS and cell towers are used by dog tracking companies.
Dog trackers typically use cellular triangulation or GPS tracking to keep tabs on your dog.

What’s the Difference Between GPS and Cellular Triangulation?

GPS uses satellites to determine the location of a tracker, whereas cellular triangulation uses cell towers.

Cellular triangulation is more accurate than GPS but requires a cellular signal to work.

What’s the Difference Between Continuous and Periodic Tracking?

Continuous tracking means the tracker constantly updates its location, which uses more battery power.

Periodic monitoring indicates that the tracker only periodically updates its site, conserving battery power.

Read More: Link AKC VS Whistle. We tested Whistle alongside the Link AKC pet tracker collar and here are our results!

The Verdict

If you’re looking for a GPS dog collar, then the PetFon and Whistle are both great options. They’re both easy to use and offer accurate tracking.

Overall, though, we liked the Whistle over the PetFon.

Whistle has a longer battery life, can track more dogs, and is waterproof in the event that your dog gets lost in wet areas or on a rainy day.

Other Interesting Reads

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Jesse Hopping, CCDT

Jesse is a natural-born dog-lover certified dog trainer (CCDT), dog foster, and former volunteer at Richmond SPCA and surrounding dog shelters for over 10 years. Her pack includes a Bernedoodle and 3 Boston Terriers. She’s sipping caramel coffee and watching her pack play in the sun when she’s not writing blogs. Jesse has her Certified Dog Trainer designation from CATCH Canine Trainers Academy since 2018 and and majored in English from the University of Virginia.

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