Works in more countries
The Ask A Vet GPS Tracker works in 46 countries across North America, Europe and Asia-Pacific. Halo’s help pages say Halo ships to the United States and Canada.
GPS tracker comparison
Halo Collar 5 vs Ask A Vet GPS Tracker
A GPS dog fence and a GPS tracker, each with its own mobile connection, side by side.
Halo facts checked
The short answer
Both need a subscription, track your dog live and alert you when it leaves an area you set. Halo Collar 5 is a GPS dog fence built for boundary training: it cues your dog at the edge with sound, vibration or optional static, and Halo ships to the United States and Canada. The Ask A Vet GPS Tracker works in 46 countries and fits dogs and cats over 4 kg, with vets in the same app (with Premium), a touchscreen that shows alerts and a QR pet ID.
Side by side
How the two trackers compare
Ask A Vet GPS Tracker figures come from our product page. Halo figures are quoted from Halo’s own pages. “Not listed” means Halo’s pages do not mention it.
| Feature | Ask A Vet GPS Tracker | Halo Collar 5 |
|---|---|---|
| What it is | GPS tracker with its own mobile connection and a colour touchscreen | GPS dog fence and tracking collar with its own LTE connection |
| How it finds your pet | GPS, plus Wi-Fi, mobile masts and your phone over Bluetooth when it is nearby | Dual-frequency GPS, sent to the app over LTE, Wi-Fi or Bluetooth |
| Updates with no phone nearby | Yes, over LTE-M and NB-IoT where there is coverage | Yes, over LTE. Fences stored on the collar work with no connection |
| Live tracking | Yes, LIVE mode for frequent updates | Yes, up to four location updates a second in the Halo app |
| Where it works | Works in 46 countries. Check yours on the tracker page | Ships to the United States and Canada, except Yukon, Quebec and US territories |
| Subscription needed | Yes: the Tracker Plan or Premium | Yes: a Pack Membership plan (Bronze, Silver or Gold) |
| Safe zones and escape alerts | Safe and no-go zones with escape alerts | GPS fences with escalating cues as your dog nears the edge, and instant breach alerts |
| Activity and sleep | Steps, calories, activity and sleep | Halo Health logs walks, active time, rest time and car travel |
| Other health signals | Bark counting and temperature alerts | Not listed |
| Vets in the app | With Premium: unlimited AI Vet chat, 2 certified vet chats a month and discounted telehealth video calls | Pawp TeleVet by chat or video, in the Pawp app: three months with Bronze, six with Silver, unlimited with Gold |
| Screen on the tracker | Colour touchscreen showing steps, activity, sleep and your pet’s ID | Not listed |
| Alerts on the tracker screen | Medication reminders, leaving a safe zone, temperature warnings and a lost-pet alert pop up on the screen with a chime | Not listed |
| Light on the collar | LED light in any colour you choose with the colour picker, solid or rainbow | Status lights for GPS signal and charging |
| Sounds on the collar | Eight tones on the collar, four on your phone | A variety of sounds, including Cesar Millan’s voice commands and his “TSCH” sound |
| Custom sounds | Add your own short sounds, such as your voice, and play them on the collar from the app | Not listed |
| Training sounds | Clicker, whistle and Come Back tones played on the collar from the app, for recall, mealtimes and quiet time | Whistle, Good Dog and Go Home cues, and Cesar Millan’s training program in the app |
| Vibration cues | Three strengths, within Bluetooth range | Vibration patterns for any cue. Halo also lists optional static, never required |
| ID for whoever finds your pet | Built-in QR pet ID: a finder needs no app, and Lost mode alerts you when it is scanned | Not listed |
| Dogs, cats and size | Dogs and cats over 4 kg | Dogs of 10 lbs (about 4.5 kg) and up, 5 months or older |
| Phones | iPhone on iOS 15.1 or later, Android 7.0 or later | iPhone and Android |
The difference
Which one fits your pet?
Where the Ask A Vet GPS Tracker is different
Vets in the same app
With Premium you get unlimited AI Vet chat, 2 certified vet chats a month and discounted telehealth video calls, in the app that holds your pet’s tracker data. Halo’s Pack Perks include Pawp TeleVet care by chat or video, which members use in the separate Pawp app.
One tracker for dogs and cats
The Ask A Vet GPS Tracker fits dogs and cats over 4 kg. Halo’s pages list the Halo Collar 5 for dogs of 10 lbs (about 4.5 kg) and up.
A screen that travels with your dog
When a friend, sitter or family member takes the leash, alerts like a medication reminder or leaving a safe zone pop up on the collar with a chime, so the information travels with your dog instead of staying on your phone. It also shows daily stats at a glance, from steps to sleep. Halo’s pages list status lights, not a screen.
An ID whoever finds your pet can scan
The Ask A Vet GPS Tracker has a built-in QR pet ID. A finder scans it with a phone camera, no app needed, and Lost mode alerts you when it is scanned.
Make it yours
Pick any colour for the collar light with the colour picker, and add your own short sounds, such as your voice, to play on the collar from the Ask A Vet app. Halo’s pages list status lights for GPS signal and charging, and sounds that include Cesar Millan’s voice commands.
Where Halo Collar 5 may suit you better
You want a fence that trains at the edge
Halo states its collar stores your fences and cues your dog automatically as it nears the boundary, escalating until it turns around, then plays a Come Back command. The Ask A Vet GPS Tracker alerts you when your pet leaves a safe zone.
You want a guided training program
Halo’s app includes a Cesar Millan training program, and Halo’s FAQ lists Whistle, Good Dog and Go Home cues on the collar. The Ask A Vet GPS Tracker plays clicker, whistle and Come Back tones that you pair with your own routines.
You want location several times a second
Halo states its app shows up to four location updates a second. The Ask A Vet GPS Tracker’s LIVE mode gives frequent updates.
If working in more countries, vets in the same app, one tracker for dogs and cats, or a screen that shows alerts to whoever has the leash matter more to you, the Ask A Vet GPS Tracker is the better fit.
Questions
Halo Collar 5 or Ask A Vet GPS Tracker: your questions
Answers about Halo are taken from Halo’s own pages, read on 27 October 2026.
Where is Halo Collar available?
Halo’s help pages say it ships to the United States and Canada, except Yukon, Quebec and US territories, and its FAQ states it is starting in the United States. The Ask A Vet GPS Tracker works in 46 countries: check yours on the tracker page.
Does Halo Collar need a subscription?
Yes. Halo’s FAQ states a plan is required to keep your collar active, and its Pack Membership comes in Bronze, Silver and Gold. The Ask A Vet GPS Tracker needs a plan too, Ask A Vet’s Tracker Plan or Premium, because both send your dog’s location over a mobile network.
Is the Ask A Vet GPS Tracker a Halo alternative without a subscription?
No. Like Halo Collar 5, it sends your pet’s location over a mobile network, so it needs Ask A Vet’s Tracker Plan or Premium. What changes is what the plan includes: Ask A Vet Premium adds unlimited AI Vet chat, 2 certified vet chats a month and discounted telehealth video calls, in the same app as your tracker.
Does Halo include vet chat?
Yes, through a partner. Halo’s Pack Perks page lists Pawp TeleVet care, by chat or video with licensed vet professionals in the Pawp app: three months with Bronze, six with Silver and unlimited access with Gold. With Ask A Vet Premium, the AI Vet and certified vets are in the same app as your tracker.
Can I use Halo Collar on a cat?
Halo’s pages describe the Halo Collar 5 as a GPS dog fence for dogs of 10 lbs (about 4.5 kg) and up, 5 months or older, and list no version for cats. The Ask A Vet GPS Tracker is one tracker for dogs and cats over 4 kg.
Does Halo Collar use static?
Halo lists static as one of three feedback options, with sounds and vibration, and describes it as a sense of touch meant to mimic a tap on the shoulder. Halo’s FAQ states you are never required to use static. The Ask A Vet GPS Tracker’s cues are tones on the collar and vibration in three strengths within Bluetooth range.
Why does the Ask A Vet GPS Tracker have a screen?
Dogs don’t always head out with the person who has the app. When a friend, sitter or family member takes the leash, the screen shows them important alerts directly: a medication reminder, leaving a safe zone, a temperature warning or a lost-pet alert, with a chime. It also shows daily stats at a glance, from steps to sleep. Halo’s pages list status lights on the collar, not a screen.
Can someone who finds my dog contact me?
The Ask A Vet GPS Tracker has a built-in QR pet ID: a finder scans it with a phone camera, no app needed, and Lost mode alerts you when it is scanned. Halo’s pages do not list a finder ID on the collar. Either way, keep your dog microchipped and wearing an ID tag.
How do I switch from Halo?
Set up the Ask A Vet GPS Tracker in the Ask A Vet app: it pairs over Bluetooth, then you add your dog and choose a plan. Your Halo fences and history do not move across, so draw your safe zones again. Halo’s boundary cues come from the Halo Collar itself, so make sure your yard keeps your dog in before you switch, and cancel your Halo plan with Halo.
Ready to choose?
The Ask A Vet GPS Tracker works with the Ask A Vet app on a Tracker Plan or Premium. Check it works in your country on the tracker page before you buy.
Sources
Ask A Vet GPS Tracker figures come from our product page. Halo figures come from these pages, read on 27 October 2026:
- Halo GPS and location tracking
- Halo FAQ
- Halo Pack Perks
- Halo help: Where do you ship to?
- Halo help: What do the LED lights on the collar mean?
Specifications change, so check Halo’s current pages before you buy. Halo is a trademark of its owner. Ask A Vet is not affiliated with Halo.