Heyrex™2
Heyrex™2
- Tracks your dog’s health, behaviour and activity
- Sends alerts for unusual health changes
- Lets you know if your dog’s getting enough exercise
- Find the location of your dog
Why Choose Heyrex
Why Choose Heyrex
- Spot health issues early with real-time alerts
- Know if your dog’s getting enough exercise
- Track changes in behaviour
- Find your dog fast with location tracking
- Earn dog rewards for keeping their wellbeing high
Heyrex™ Connectivity Plan
Heyrex™ Connectivity Plan
Required to connect your Heyrex via satellite & cellular to track your dog’s health, behavior & location - anywhere, anytime.
Earn Wag-o Points for keeping your dog healthy & unlock rewards that can cover the cost of your plan!
Plans:
• Annual: $9.17/month ($110 per year)
• 3-Monthly: $11/month
• Monthly: $14.95/month
Included In Your Bundle
Included In Your Bundle
- Heyrex Monitor: Real time health tracking
- Free Flea & Worm Protection dog treat (worth $40)
- First month free subscription (worth $10)
- 30-day risk-free trial: No questions asked!
- Premium support from our expert team
Technical Specifications
Technical Specifications
- 1 year warranty
- 7 - 14 days battery life. Dependent on cellular coverage and location usage.
- Rechargeable via included USB cable
- Durable design with strong rubber collar attachment
- IPX8 water resistance (up to 1.5m)
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See What Your Dog Can’t Tell You
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Health Alerts
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Wellbeing score
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Exercise Summary
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Behaviour tracking
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Find your dog
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Activity Rewards

Heyrex™ Connectivity Plan Options
The Heyrex™ Connectivity Plan is required to connect your device to the app using satelite & cellular services, allowing you to monitor your dog's health, behaviour, & location anywhere.
Want to make your Connectivity Plan basically free? Earn Wag-o Points by keeping your dog healthy & get rewards worth more than the plan!
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Annually
$9.17 per month
$110.00 per year
Save $69.40 per year
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Every 3 months
$33.00 every 3 months
Save $47.40 per year
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Monthly
$14.95 per month
How Heyrex Works
Heyrex monitors your dog’s movement and temperature every 15 minutes, learns their normal patterns, and alerts you to any changes.
Wellbeing Score
Know how your dog is really doing with a daily score out of 100 based on activity, rest, & behavior patterns.
Find My Dog
See your dog’s real-time location on a map, anytime they’re wearing Heyrex.
Instant Health Alerts
Be instantly notified if your dog’s behavior changes in ways that may signal a health issue.
Fitness, Exercise & Weight Management
Set tailored exercise goals based on your dog's breed and age. Track weight to keep your dog fit and healthy.

How Heyrex Helps Prevent 5 Common Dog Health Issues
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Allergies
Tracks scratching, activity, & sleep changes to spot allergy flare-ups early.
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Dental Disease
Monitors restlessness, disrupted sleep, & activity changes to catch dental problems sooner.
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Fleas
Detects increased scratching & restlessness—early signs of fleas or ticks.
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Obesity
Precise weight management with custom calorie targets and exercise goals based on your dog’s food, age, breed, and activity.
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Stomach issues
Flags changes in activity, sleep, & restlessness that may signal gut problems.
Our Promise
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Express Shipping
Urban: 1-3 days
Rural: 2-4 days
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Rewards (Wago Points)
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12 month warranty
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5 star reviews
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Developed in NZ
What Our Customers Think
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"Heyrex alerted me to Fred’s scratching while he was on a farm trip - turns out he had fleas!"
- Simon
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"Heyrex has been great for tracking Moose’s activity and rest cycles over time. The graphs clearly show his daily patterns and the big spikes when he plays with his mates."
- Julie
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"I love checking on Charlie at doggie daycare - she’s so active and happy. I can also monitor her when I’m away, all from my smartphone."
- Jason
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“My dog’s getting older and Heyrex helps me spot small changes in her activity. It’s helped me have better convos with my vet - huge peace of mind.”
- William
FAQs
What does Heyrex monitor?
Heyrex measures activity levels, mobility, scratching, temperature, resting patterns and sleep disturbances. This information helps to identify a range of behavioural and health issues – from fleas and allergies, to lameness or separation anxiety.
Heyrex provides 24/7 monitoring, and will notify you if there’s an important change. So you’ll always know how your dog is doing, whether you’re with them or not.
How does Heyrex show me this information?
Log into the Heyrex app on your smartphone or any device.
Heyrex2 analyzes real-time data from the monitor and presents it in a simple, easy-to-understand format, so you can track changes as they happen.
How is Heyrex different to other dog tracking products?
There are two big differences – that’s what makes Heyrex so exciting!
Firstly, it’s the first device in the world to combine health and fitness monitoring with a GPS “find my pet” locator. (Giving you way more bark for your buck).
Secondly, Heyrex was designed by veterinarians to provide high-quality health data for dogs. Heyrex delivers high-quality health insights using advanced AI and algorithms, making complex data easy to understand and use.
What are Wago points?
Just by using your Heyrex, you can earn freebies and exclusive discounts. You and your dog will get rewarded with Wago points when you hit your health and well-being milestones!
You’ll be able to redeem your Wago points on things like dog foods, pet insurance and more.
Learn more about Wago Points here
Has Heyrex been tried and tested?
Heyrex has been tested for several years and trusted in global veterinary projects, including:
- A presentation at the World Small Animal Veterinary Association Conference (2011).
- Monitoring post-op recovery, skin treatments, and behavior in the USA, Australia, and New Zealand.
- Specialist canine research at Massey University Veterinary Teaching Hospital (NZ) and Waltham Petcare Science Institute (UK).
Heyrex2 has been tested ‘in the field’ by dozens of pet-parents in New Zealand.
How does the connectivity work?
It’s a mix of wifi (for the health monitoring) and satellite (for the GPS locator).
If your dog is in an area without cellular coverage, the Heyrex collar device will continue to monitor your dog’s activity, and the data will update once they come within range again.
Is Heyrex easy to use? And is there support available?
Yes, and yes!
Your purchase includes a QuickStart Guide to using your Heyrex.
You’ll find it easy to use. But if you ever have a question, or need help, the team at Heyrex are always available. Just drop us an email to info@heyrex.com.
We live on a large densely forested property. My cattledog Kandi has never seriously disappeared until last week. I was frantic until after 30 minutes of three of us searching, I finally remembered the Heyrex has Find My Pet on the Heyrex App. You can even change the location mode to update rapidly to find your pet. I clicked on it with shaking hands and saw she was almost a kilometre away. We all raced to her location and there she was. She was as happy to see us as we were to see her. The app showed she had crossed a busy road twice. Heyrex saved my darling dog. It has so many stats on sleeping, scratching, running and walking and more. It's wonderful.
I purchased a HeyRex just over a year ago for my new puppy who was a bit of an escape artist. It gave me peace of mind while I was at work of where she was and when she escaped and was picked up by animal control I was able to track her down within 15 minutes by increasing the ping frequency. It was also awesome to see how active she was and the notifications if she hasn't been active enough and needs a walk. Twice now, my pup has broken the device and once I'd let HeyRex know I have received a replacement the following day.
We’ve been using the Heyrex device for the past three weeks and it’s been a great addition to our routine. It’s helped us better understand our dogs activity levels, rest patterns, and overall wellbeing. The insights have been interesting and easy to follow, and it’s reassuring to see his trends over time. It’s especially helpful for noticing any changes that might not be obvious day-to-day. Definitely recommend Heyrex to any dog owner wanting a clearer picture of their pup’s health and wellbeing! How amazing is it to have a device like this made in NZ for NZ dogs! 🐾
Heyrex has given me real peace of mind as a dog parent. From tracking Tequila’s sleep and activity to getting instant alerts when something’s off, it helps me understand what she can’t say. Reliable, waterproof, and still going strong after 10 days. This device is now part of how I care for her every day.
Woof! Kronk and Yzma here! The Heyrex 2 is our new favourite thing. It gives our humans all the deets on our naps and zoomies, helping them understand us better.
Best part? We can run wild and free without our humans worrying about losing us! It keeps us safe, even when we're chasing birds out of sight.
And bonus: it gets our humans off the couch for more walks and runs! More fun for the whole pack!
Seriously, if you're a dog (or a human who loves one!), you need the Heyrex 2. Paws-down highly recommended by us!