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Health + Fitness Tracker for Pets

Whistle FIT packs all the power of our most advanced trackers, just without the GPS location tracking.

$79.95 + subscription?

What's Included:

  • 1 Whistle FIT Device
  • 1 Hook & Loop Collar Attachment
  • 1 USB Charging Cable
  • 1 Quick Start Guide
Select quantity



Questions before buying? Text 415-200-3368415-200-3368  |  6am-8:30pm PST

The Whistle App

Know more about your best friend


Your Pet's Ultimate
Companion for Adventure

Fitness Features

Set fitness goals based on breed, age, and weight. Track your pet's calories burned, distance traveled, minutes active, and more. Earn badges for milestones.

Food Portion Calculator

Get recommended daily food portions based on your pet’s activity level, age, breed, weight.

Try it Now »

Health Monitoring

Catch potential health issues before they become problems. Track and analyze your pet's licking, scratching and sleeping week over week. Send a 30-day summary to your vet via email.


For a limited time, get access to a vet through the Whistle app. Chat, call, video call or email. Vets give advice/guidance to help answer questions.

Custom Reminders

Keep the whole pack on track with reminders for vet visits, recurring medications, grooming appointments and more.

24-hour Timeline

Know when they ran, played, walked, napped & more with an in-depth view of your pet's day.

food portion calculator

Food Portion Calculator

Fitness starts with healthy eating.

Get recommended daily food portions based on your pet's activity levels, age, breed, and weight.

Try it Now »
coral eating
Compare Whistle Trackers

A Whistle Tracker for Every Pet

Whistle Go Explore Device, Green

Ultimate Health +
Location Tracker for Pets

Built-in light and
extended battery life.

Whistle Go Device, Taupe

Health + Location
Tracker for Pets

Whistle FIT Device

Health + Fitness
Tracker for Pets

(Only available
on Whistle.com)

Price $129.95 $99.95 $79.95
Subscription Monthly - $9.95/mo
Yearly - $7.95/mo
2-year - $6.95/mo
Monthly - $9.95/mo
Yearly - $7.95/mo
2-year - $6.95/mo
Yearly - $35.40 ($2.95/mo)
Battery Life
Up to 20 days Up to 10 days Up to 15 days
Waterproof Rated IPX 8,
submerge up to 6ft
Rated IPX 7,
submerge up to 3ft
Rated IPX 7,
submerge up to 3ft
Night Light (in-app control)
Monitors licking, scratching, & sleeping
Notifications for change in behavior patterns
Weekly wellness report, monthly stats
Email vet 30-day health report

Whistle FIT Tech Specs

Price $79.95 + SUBSCRIPTION
Pet Compatibility All dog sizes & breeds
Availability U.S. Only
Dimensions Width: 1.6” | Height: 1.5” | Thickness: 0.4”
Weight 0.5 oz

Frequently Asked Questions

What is Whistle GO & Whistle GO Explore?

Whistle GO and Whistle GO Explore are the most comprehensive pet trackers on the market—the only pet wearables, in fact, that put GPS tracking plus fitness and health monitoring all into one simple device. Both Whistle GO and Whistle GO Explore let you pinpoint your pet’s precise location with real-time tracking. Both monitor behaviors that may be early-warning signs of potential health issues. You’ll always know where your pet went and with whom. And with both, you can set and track fitness goals based on age, weight, and breed, plus review weekly reports that summarize your pet’s activities and insights.

What makes Whistle GO Explore different is a longer battery life (up to 20 days on a single charge) and a built-in light that you can use as night light during evening walks—or as a beacon to spot your dog in the dark.

Just attach the device to your pet’s collar, and customize the Whistle app to send alerts and notifications to the key people in your pack.

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 Safe 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.

Why do I need a subscription for my Whistle tracker?

Whistle trackers are both a device and service. Subscription plans cover health and fitness monitoring, including proactive notifications, alerts, personalized health reports and more. The Whistle GO + Whistle GO Explore subscription plans also cover cellular data connection to provide GPS location tracking. No new phone contract required. During the in-app activation process, you will be prompted to select a Whistle subscription plan.

Do I need to have a mobile phone with an AT&T® contract to use a Whistle device?

No. Whistle trackers use AT&T®, America’s Largest Cellular Network, for on-demand location tracking, but this is separate and distinct from the service plan you have for your mobile phone. As long as you have cellular data and reception on your iOS or Android phone, you'll be able to use the Whistle app to communicate with your Whistle tracker.

Will Whistle devices work in areas where there is no cellular service?

No. To locate your pet and communicate with your smartphone, Whistle trackers require cellular service. While your mobile phone only requires Wi-Fi connection to request real-time location tracking through the Whistle app, the tracking device itself requires cellular service to communicate GPS updates back to your phone. Need help determining AT&T coverage in your area? Give us a call.

Call: 1-855-999-0471
M-F 7am-4pm PST
Sat-Sun 7am-3:30pm PST

How long does the battery last on Whistle trackers?

Whistle GO Explore—Up to 20 days on a single charge. Actual time varies based on Wi-Fi strength of and cellular coverage.

Whistle GO—Up to 10 days on a single charge. Actual time varies based on strength of Wi-Fi and cellular coverage.

Whistle FIT—Up to 15 days on a single charge. Actual time varies based on strength of Wi-Fi and cellular coverage.

You’ll get a proactive alert when it’s time to recharge the battery, and the device only takes 2 hours to fully charge. The more time your pet spends out of your established Wi-Fi range, the faster the battery drains. To ensure adequate charge for your pet’s everyday and unexpected adventures alike, we recommend charging every 2-3 days. Learn more about battery life.

Getting Started is Easy

Download the Whistle app

Select a subscription plan

Charge, attach to collar and GO!