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      Health 2.0
      Go Explore 2.0
      Whistle Switch Smart Collar
      Switch Smart Collar
    • Explore these Whistle app features:

      • About Your Health Dashboard
      • Pet Insight Project
      • More About the Whistle App
      GPS Tracking
      Activity Tracking
      Health Monitoring
      Daily Check-Ins
      Ask a Vet

      How Whistle helps…

      Dogs with Allergies
      Overweight Dogs
      Senior Dogs
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Smart devices

Health 2.0
Go Explore 2.0
Whistle Switch Smart Collar
Switch Collar

Find the best device for your dog

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How it works

whistle app - gps dog trackers GPS Tracking Whistle app - Activity monitoring Activity Tracking Whistle app - health monitoring Health Monitoring Whistle app - daily check-ins Daily Check-Ins Whistle app - ask a vet Ask a Vet

How Whistle helps

whistle app - for allergies Dogs with Allergies whistle app - for overweight dogs Overweight Dogs whistle app - senior dogs Senior Dogs

More Whistle app features:

  • About Your Health Dashboard
  • Pet Insight Project
  • More About the Whistle App

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Accessibility

© 2023 All Rights Reserved. Whistle is a brand of Science & Diagnostics, a division of Mars Petcare.

*Use to ONAWALK to receive one free Whistle leash when you purchase a Whistle device while supplies last or by 10/07/23 at 11:59 pm PT on whistle.com. Offer is non-transferable. Offer available for one-time use per customer. Not valid on previous purchases, purchases of devices, replacement parts, or shipping & handling charges. Cannot be used in conjunction with other codes. Whistle™ may modify or cancel offer at any time.

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Monday - Friday
1-855-999-0471

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  • About us
  • Press
  • Blog
  • FAQ
  • Contact us
  • Support
  • Refund policy
  • Device Limited Warranty
  • Accessibility
  • Refer a Friend, Get $20!
  • Pet Insight Project
  • Careers
  • Affiliates
  • Terms of service
  • Privacy Statement
  • Cookie Notice
  • Modern Slavery Act
  • Your Privacy Choices
  • AdChoices
Accessibility

© 2023 All Rights Reserved. Whistle is a brand of Science & Diagnostics, a division of Mars Petcare.

*Use to ONAWALK to receive one free Whistle leash when you purchase a Whistle device while supplies last or by 10/07/23 at 11:59 pm PT on whistle.com. Offer is non-transferable. Offer available for one-time use per customer. Not valid on previous purchases, purchases of devices, replacement parts, or shipping & handling charges. Cannot be used in conjunction with other codes. Whistle™ may modify or cancel offer at any time.

Terms & Conditions Privacy policy Accessibility

Size Guide

XS/S
Neck size:8” - 11”
For Dogs:5 - 25lbs
Breeds like:Russel Terrier, Dachshund
S/M
Neck size:12” - 18”
For Dogs:10 - 55lbs
Breeds like:Beagle, Cocker Spaniel
M/L
Neck size:16” - 24”
For Dogs:Up to 75lbs
Breeds like:Labrador Retriever, German Shepherd
How to Measure:
1
Grab a string, shoelace, or paper strip to measure the base of your dog’s neck.
2
Measure the circumference, leaving room to fit two fingers (about 1.25-1.5’’).
3
Select your size using the guide below. Between sizes? We suggest sizing up.

Need help? Give us a call: 1-855-999-0471

Size Guide

XS/S
Neck size:8” - 11”
For Dogs:5 - 25lbs
Breeds like:Russel Terrier, Dachshund
S/M
Neck size:12” - 18”
For Dogs:10 - 55lbs
Breeds like:Beagle, Cocker Spaniel
M/L
Neck size:16” - 24”
For Dogs:Up to 75lbs
Breeds like:Labrador Retriever, German Shepherd
How to Measure:
1
Grab a string, shoelace, or paper strip to measure the base of your dog’s neck.
2
Measure the circumference, leaving room to fit two fingers (about 1.25-1.5’’).
3
Select your size using the guide below. Between sizes? We suggest sizing up.

Need help? Give us a call: 1-855-999-0471

Size Guide

S/M
Neck size:8” - 11”
For Dogs:5 - 25lbs
Breeds like:Russel Terrier, Dachshund
M/L
Neck size:12” - 18”
For Dogs:10 - 55lbs
Breeds like:Beagle, Cocker Spaniel
L/XL
Neck size:16” - 24”
For Dogs:Up to 75lbs
Breeds like:Labrador Retriever, German Shepherd
How to Measure:
1
Grab a string, shoelace, or paper strip to measure the base of your dog’s neck.
2
Measure the circumference, leaving room to fit two fingers (about 1.25-1.5’’).
3
Select your size using the guide below. Between sizes? We suggest sizing up.

Need help? Give us a call: 1-855-999-0471

Terms and conditions

*Offer valid for 1 Whistle Health Limited Edition device and a subscription to the Whistle app for as long as the user is part of the MARS PETCARE BIOBANK™ study. Offer while supplies last on whistle.com. Offer is non-transferable and only valid for MARS PETCARE BIOBANK™ recipients. Not valid on previous purchases. You are not required to provide credit card information unless you decide to continue your subscription beyond the expiration of the MARS PETCARE BIOBANK study project. Whistle may modify or cancel offer at any time.

Thanks for participating in the

As a study participant, Whistle is excited to offer you a FREE Whistle Health smart device and app subscription. Whistle™ Health uses industry-leading AI to translate your dog’s behavior into in-depth health insights. You’ll know how they’re doing at all times, and learn how to spot potential health issues sooner.

Why do I need a plan?

A Whistle plan keeps you connected, so you can always get your pet’s full health story. Plans cover GPS location tracking (for Go Explore & Switch), health and fitness monitoring, the ability to share reports with your pet’s care team, and access to our Ask a Vet feature.

Your pet’s healthiest life starts now.

Join the Whistle pack for exclusive offers and new product announcements.

Sign up for product updates, offers, and learn more about Whistle, and other Mars Petcare brands. Must be over 16 years to sign up.

See our privacy statement to find out how we collect and use your data, to contact us with privacy questions or to exercise your personal data rights.

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Dog wearing Whistle dog tracker with owner
Terms and Conditions

*Offer valid for up to 5 Whistle Health (SKU 100-30621-00) devices and 6-month free trial of the Whistle app while supplies last or by 12/31/23 at 11:59PM PT on whistle.com. 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 6 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.