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Frequently Asked Questions

Product Overview

What is Whistle 3 and how does it work?
Whistle 3 is a device that attaches to your pet’s existing collar and allows you to track their location and activity from an app on your phone.

So, how does the technology work?
You will first set up a safe Place (i.e. home, vacation home, dog sitter, etc.) for your pet using Wi-Fi. Good news is, you can have multiple safe Places depending on where your pet spends most of their time. When your pet’s Whistle is connected to Wi-Fi, it is in power save mode (using very little battery).

Whistle will then notify you each time your pet leaves and returns to their Place. Once your pet is beyond Wi-Fi range, the device uses cellular and GPS technology to allow you to enable tracking anywhere in the U.S. Whistle is the most advanced pet tracker since it uses GPS, Wi-Fi and cellular technology (on America's largest network) to locate your pet 24/7. Read below for more information on cellular coverage and subscription.
Why does Whistle 3 need a Wi-Fi connection?
Wi-Fi serves a few very important functions for Whistle 3 and is designed to give you the most comprehensive and accurate tracking:
• During activation, you will be required to setup a Wi-Fi network associated with your pets Place(s).
• It allows Whistle 3 to quickly upload activity and location data about your pet so you can view your pet's latest info with the app on your smartphone.
• When your pet’s Whistle is connected to Wi-Fi, we know they are safe.
• When in Wi-Fi, Whistle 3 is in power save mode, preserving battery for when your pet leaves the safe Place. In power save mode, you are not able to track your pet as it is assumed they are safe when connected to Wi-Fi.
How is Whistle 3 different from a microchip?
Whistle 3 is the only proactive layer of protection for loss prevention with pets. It uses breakthrough GPS, Wi-Fi and cellular technology to enable you to see where your pet is at anytime and will alert you if your pet leaves home.

Traditional microchipping and RFID tags are an important part of pet safety, yet a reactive technology when it comes to losing your pet. To find a lost pet using a microchip, a pet has to be found and taken to a vet or shelter with access to the right database with the owner’s correct information.

This process could take days or weeks, but with Whistle 3 you have the ability to locate your pet in minutes. Whistle 3 is an external, on-collar device, while microchips are embedded under your pet’s skin.
Where can I buy Whistle 3?
You can purchase Whistle 3 here.
Can I use Whistle 3 on more than one pet?
When you set up your Whistle 3, you can only choose one pet to assign the tracker to. You need an additional Whistle 3 tracker and subscription for each additional pet.
Is Whistle 3 waterproof?
Yes. Whistle 3 is waterproof and durable (rated IPX7). It’s designed to go anywhere with your pet. The most intrepid pets can take Whistle 3 with them through water, mud, rain and snow. We do recommend wiping the device down before charging if it does take a swim!

Attachment & Size

How does Whistle 3 attach to my pet’s collar?
Whistle 3 comes with an attachment piece to secure the device directly onto your pet’s existing collar or harness (up to 1’’ wide). The device can easily be removed from the attachment when it needs to be charged. More info on the collar attachment can be found here.
Does Whistle 3 only come in one size?
Yes. Whistle 3 only comes in one size but is designed for any pet over 8 lbs. Works great for smaller dogs and cats too!

Whistle 3 Battery Life

How long does Whistle 3’s battery last?
On average, the battery lasts up to 7 days depending on the strength of Wi-Fi and cellular coverage. The Whistle 3 app will tell you when it’s time to charge. The more time your pet spends out of Wi-Fi range, the quicker the battery will drain. We recommend charging every 2-3 days to ensure they are always covered. We will send you a notification when your battery needs to be charged, and a full recharge only takes 2 hours! You can find more battery information for Whistle 3 here.
How do you charge Whistle 3?
Whistle 3 comes with a charging cable in the box. You will need to insert the USB end of this cable into any USB port. The tracker attaches to the charger, be sure to turn Whistle 3 until it clicks into place. The LED light will turn orange indicating it is charging.

The light turns green when it is fully charged (which takes around 2 hours for an empty battery). You'll receive a notification when the device is fully charged. Once the battery is charged, re-attach it you your pet's collar.

Note: A notification will be sent to your phone when your battery drops to 20% as a reminder to change your battery.

Mobile App

Is the Whistle 3 app free?
Yes, just download the free Whistle 3 mobile app to your iOS or Android smartphone and stay connected to your pet from wherever you are.
Does Whistle 3 have activity monitoring?
Yes. Track your pet’s activity using the free Whistle 3 app on your smartphone. Whistle 3 has an accelerometer that is used to calculate intensity and minutes of activity for your pet. You can also customize activity goals based on your pet’s breed, weight and age.
Can I add family and friends to my Whistle 3 account?
Yes. You can invite family, friends, and other caretakers to view your pet’s location and activity. Visit your pet's profile to send them an invitation to the free Whistle app.
How do I make or edit a Safe Place if I’ve made changes to my Wi-Fi?
Your first Safe Place will be created as part of the set up process and you can add more at any time. You can also edit your existing Safe Places if you need to change the WiFi, address, or size of the Place, by following these instructions.
Why did I get a false location alert?
Are you getting notifications that your pet has left their safe zone but they're right next to you? This is typically an issue when the tracker is near a Wi-Fi "dead zone." Not all homes are built with the same materials, so if your device finds one of these WiFi "dead zones", the GPS Signal in your home can also be affected, placing your pet's location outside of your Safe Place. For more information about why false alerts happen and how to prevent them, click here.

Subscription & Billing

Why is a subscription plan required to use Whistle 3?
Whistle uses America's largest cellular network for on-demand location tracking anywhere in the U.S. if they get away. Each device requires a subscription plan to work, and you will be prompted to select a plan when activating your Whistle 3 (options start at just $6.95/month). Read more about subscription plans here.
Do I need to have AT&T as my personal cellular provider in order to use Whistle 3?
Nope! Whistle 3 will work well no matter who your personal cellular provider is. Think of Whistle 3 as a cell phone for your pet!
Do you offer a multiple pet discount?
Not at this time, but we’re looking into options for future discounts.
If I purchase a Whistle 3 device with a subscription plan, how long do I have to activate it?
Pre-paid or free subscriptions must be activated within 12 months of purchase. Each device requires a subscription plan to work, and you will be prompted to select a plan (options start at just $6.95/month) when activating your Whistle 3.
If I have an older Whistle product, can I upgrade to Whistle 3?
Yes! You can even carry over your pet and receive a refund for any remaining annual or biennial service before selecting your Whistle 3 subscription plan. Learn more about how to do so here.
If I am upgrading, can I get a discount?
If you are a current Whistle customer, you may be eligible for an upgrade offer. You can reach out to us via our support center or call 855-999-0471 and one of our advocates can look into it for you!

Coverage & Compatibility

Which cellular carrier does Whistle 3 use?
Whistle 3 uses AT&T®, America’s Largest Cellular Network.

Please keep in mind this is for the Whistle 3 tracker and not your mobile phone. As long as you have cellular data & reception on your iOS or Android phone, you'll be able to communicate with the Whistle app.
Will Whistle 3 work if I am outside cellular service?
No. The device requires cellular service to properly locate your pet and communicate with your smartphone. The tracker does not require that your smartphone has service to function (your phone can be connected to Wi-Fi), but the tracker itself needs to secure cellular service to communicate GPS updates to your phone.
Is Whistle 3 available outside of the U.S.?
No. Whistle 3 is only available in the U.S. at this time.


What is the warranty for Whistle 3?
We want everyone to love their Whistle 3 Pet Tracker, which is why we offer a 90-day money back guarantee on the purchase price of the device. For additional warranty information, click here.
How do I set up my replacement Whistle 3?
Please see our instructions for setting up a replacement device that will take over your existing subscription.


Where do I go for customer support or technical related questions?
We’re here to help you and your pet! All Whistle customers can visit our support center or call 855-999-0471 for assistance.

Our advocates are available seven days a week, 9:00am - 7:00pm EST

How can I return my Whistle 3?
Please open a support ticket or call us 855-999-0471 and our helpful team of customer support advocates will be happy to assist you.