Thank you for being a Banfield Client!

Whistle is excited to offer you a FREE Whistle Health smart device. Whistle Health is a ground-breaking smart device for your dog that uses industry-leading AI to translate their behavior into in-depth health insights. So you understand how your pet is doing at all times and can spot potential issues before they become problems.

Whistle and Banfield are both divisions of Mars, Inc.




30 Day Risk Free

Includes 3-month free trial of the Whistle app*


Maintaining a healthy weight


Spotting skin and allergy symptoms sooner


Keeping your vet informed


Increasing their overall quality of life

Whistle Health is your tool to help you understand your pet’s health. Our pioneering tech tracks and translates their behavior into in-depth daily health insights. So you always know how they’re doing—and can take action ASAP if a change points to a potential health issue.

20-day battery life

Waterproof up to 6 ft, IPX 8

Six-month device warranty

For dogs of all sizes

3-month free trial of the Whistle app*

Whistle Health smart device

Whistle Health attachments

USB charging cable

Instruction guide

  • Whistle app - health monitoring
  • Whistle app - Activity monitoring
  • Whistle App - Streaks and Achievements
  • Whistle app - ask a vet
  • Whistle app - Reminders
  • Whistle app - daily check-ins
  • Whistle App - Add family and friends

Your pet’s health, in the palm of your hand.

Prevent weight
gain and obesity

56% of dogs are considered obese. Set a nutrition and fitness routine and stick to it.

Spot derm and
allergy symptoms

40% of dogs have skin and coat issues. Know when scratching starts to become a problem.

Stay connected
to their vet

Use data to talk about your pet’s behaviors. Intervene early and get help faster.

Increase their
quality of life

85% of pet parent think their pet has anxiety. Track their emotional well-being to understand patterns.

Whistle data explained

Whistle analyzes real time data to provide insights in key areas that help pet owners optimize their pets’ health.

Frame Whistle App - Health Metrics Whistle App - Daily Check-In Whistle App - Ask a Vet Whistle App Food Pantry

Manage their health

Track licking, scratching, eating, drinking, and sleeping—and see how they’re doing at a glance with daily wellness scores.

Custom fitness goals

Keep them at their healthy weight with personalized daily exercise goals based on breed, weight, and age.

Daily check-ins

Keep a log of how your pet is feeling and why to better understand how different daily factors affect their emotional and physical health.

Licensed vets are always on-call

Have a pet care question? Get free access to vet expertise through chat, call, and email (accessible directly from the app).

See how diet impacts your dog’s health

With our new food pantry feature, you can add all your pet’s everyday foods to see how diet changes affect their health and weight.


Yes, you’ll need a subscription so your Whistle™ Health can connect to the cellular service needed to collect your pet’s data. As part of a special limited time program, you will receive a 3 month free trial of the Whistle app*.

Once your free trial has ended, you can choose an annual plan for $40.

It can last up to 20 days on a single charge. But we recommend charging once it hits 25%. Battery life is also affected by WiFi and network coverage, so keep that in mind if you have a shaky connection. Your USB charger will bring your Whistle™ Health back to a full charge in about 90 minutes.

Technically speaking, we use a three-axis accelerometer to estimate the total amount of energy your pet used each minute. Then we use that energy estimate to determine if your dog is resting, wandering around the house, or in full squirrel chase mode.

TLDR: We learn from your pet’s behavior over time and use that data to understand their activity levels.

Short answer: sensors and a lot of measuring. Your Whistle™ Health has sensors that take 150 measurements of your dog’s motion every second. We then use our behavior detection algorithms, courtesy of our partners at Pet Insight Project, to detect specific movements like scratching or licking.

We use a device called a three-axis accelerometer. It senses how much your pet is moving, up to 50 times per second. We use that data from tens of thousands of pets to create an algorithm that accurately calculates a distance estimate.

Your Whistle™ Health will track your dog’s health and activity metrics accurately in any orientation, as long as it is attached to your dog’s collar and not another accessory like a harness or leash. Whistle™’s algorithms account for 360 degree rotation around a dog’s neck to ensure every run, roll, and rub is captured!

In order to establish a baseline of your dog’s unique behavior and lifestyle, Whistle™ collects calibration data over the course of a 7 day period. Once a baseline is established, Whistle™ can then provide insights regarding any new changes in your dog’s behavior relative to the baseline.

*Offer valid for up to 5 Whistle Health (SKU 100-30621-00) devices and 3-month free trial of the Whistle app while supplies last or by 02/29/24 at 11:59PM PT on Offer is nontransferable, only valid for Banfield recipients and valid for up to 5 devices per household.

Not valid on previous purchases, purchases of accessories, or replacement parts. Cannot be used in conjunction with other codes. Whistle may modify or cancel offer at any time. After 3 months you’ll be prompted to enroll in an annual subscription to continue using the Whistle app. You are not required to enroll in a subscription at this time, and will not be required to supply payment information in order to receive your free device.