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Virtual GPS Fencing

Halo Collar gives dogs the freedom to roam — with boundaries that can travel with you. Using dual-frequency GPS, Halo creates wireless fence boundaries anywhere, with no buried wires and no physical barriers. The patented boundary system stores fences directly on the collar, reads which direction your dog is heading, and responds with smart, escalating feedback that works just as well at a remote campsite as it does in your backyard. No Wi-Fi or cellular required.

Available with Halo Collar 5 · Dual-Frequency GPS · Unlimited Fences · Trusted by 500,000+ Dog Parents

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Halo Collar 5 GPS fence map showing property boundary detection and safe zone visualization
Works Offline
Up to 48-hr Battery
Dual-Frequency GPS
Patented Boundary Tech
90-Day Guarantee
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Virtual GPS Fencing

Virtual GPS Fencing is the core boundary technology built into every Halo Collar. It uses dual-frequency GPS (L1 + L5 bands) and Precision+ (DGNSS) to locate your dog and enforce fence perimeters with independently verified accuracy within 0.6 meters of your dog's true outdoor position.

Unlike traditional buried-wire fences that are tied to a single property, Halo's virtual fences are created in the Halo app and stored directly on the collar — so it works wherever your dog goes, whether that's a rural property, a campsite, or an off-grid vacation home where Wi-Fi and cellular signals don't reach. Halo Collar 5 determines your dog's position 20 times per second, the highest GPS update rate among GPS dog fences currently available.

Explore all Halo Collar features including real-time tracking, health monitoring, and the Cesar Millan training program.

Unlimited
GPS Fences
Create as many unique boundaries as needed
20/sec
Location Updates
20 checks/sec via dual-frequency L1+L5 GPS
48hr
Battery Life
Continuous tracking on a single 60-min charge
How Virtual GPS Fencing Works

Six Layers of Boundary Protection

Every part of Halo's GPS fencing system is designed with one goal: keeping dogs safely within their boundaries intelligently, reliably, and humanely.

Patented Technology

Direction-Aware Boundary Intelligence

Other GPS fences respond the same way every time a dog gets close to or crosses a boundary, whether the dog is sprinting toward the edge or already turning back, leaving your dog confused. Halo's patented direction-detection system knows the difference. The Halo Collar reads which direction the dog is facing and whether they're moving toward or away from the safe zone in real time. That means no unnecessary corrections, less confusion during training, and a solution that builds genuine connection.

1

Approaching

A gentle warning tone begins when the dog enters the boundary zone.

2

At the Edge

Escalating feedback activates if the dog keeps moving toward the boundary.

3

Returning

The collar plays "Come Back" and stops all feedback immediately.

Diagram showing how Halo Collar allows easy creation of fences in the app

Virtual GPS Fencing — Technical Details

Specification Value
GPS Receiver Dual-frequency (L1 + L5 bands) with Precision+ AI drift prevention
GPS Mode AlwaysOn™ — GPS never sleeps or pauses; continuous protection
Position Update Rate 20 positions per second (20 Hz)
Maximum Fences Unlimited independent virtual GPS fences
Minimum Fence Area 900 sq ft (approximately 30 × 30 feet)
Maximum Fence Area Up to 1,200 square miles
GPS Accuracy Within 0.6 meters of true outdoor position; independently verified
Fence Shape Custom polygon
Boundary Storage On-collar memory stores all of your fences
Offline Capability Full fence enforcement without Wi-Fi or cellular
Feedback Types 6 types: Warning, Boundary, Emergency (prevention); Whistle, Good Dog, Go Home (encouragement) — customizable sounds, voice commands, vibrations and static with customizable intensity
Direction Detection Patented real-time analysis of dog's heading and movement relative to boundary
Battery Life 48 hours (typical); single 60-min charge
Water Resistance IP67 rated (submersible to 1 meter for 30 minutes)
Operating Temperature –22°F to 140°F (–30°C to 60°C)
Connectivity Industry leading LTE (most carriers worldwide), dedicated Wi-Fi chip, dedicated Bluetooth chip
Collar Weight Lightweight design for all-day wear; fits dogs 10 lbs and up
Dog Size Requirement 10 lbs (4.5 kg) and above, 5+ months old, 8–30.5 inch neck. Available on Halo Collar 5 (also compatible with Halo Collar 4)
Subscription Required Yes — Pack Membership Plan starting at $9.99/month

Halo Collar 5 vs. Buried-Wire Fences vs. SpotOn GPS Collar

Feature Halo Collar 5 Buried-Wire SpotOn Nova
No installation required
GPS fence works without cellular (radio-based)
Precision+ GPS (DGNSS)
Direction-detection (no correction when returning) Patented
Automatic audible recall command "Come Back"
Feedback types 6 types (incl. Cesar Millan voice) Static only Tone, vibration, static
Portable across locations
Fence limit (per collar) Unlimited 1 (fixed) 1 fence
One-tap property-line creation
Dual-frequency GPS (L1 + L5) Radio signal
Position update rate 20/sec (20 Hz) N/A 2/sec (2 Hz)
Integrated training program Cesar Millan DIY + free 1-on-1 sessions
Battery life (GPS active) 48 hrs (typical) Wired (unlimited) 25–33+ hrs (with plan); 40+ hrs (no tracking)
Subscription required Yes (from $9.99/mo) None Optional - required for tracking and alerts
Minimum fence area 900 sq ft Varies by install ⅓ acre (~14,520 sq ft)
Activity & health tracking Halo Health™ Activity (Nova, with plan)
Who Is Halo For?

Virtual GPS Fencing Use Cases

Whether the property is a sprawling rural ranch or a compact suburban yard, Halo's GPS fencing adapts to where the dog actually lives and where they go.

Homeowners Without Physical Fencing

HOA restrictions keep many neighborhoods free of visible fencing. Halo's virtual GPS fence creates a real boundary around a property with no posts, no wires, and no visual footprint on the landscape.

Travelers and Campers

A new GPS fence can be created at your rental/vacation home, a campsite, or a friend's house in under one minute. Fences stay stored on the collar, so switching between locations is automatic.

Rural and Large-Acreage Properties

Buried-wire fences become expensive and difficult to maintain on large properties. Halo supports boundaries up to 1,200 square miles and works in areas where cellular coverage is spotty or nonexistent, the collar enforces boundaries on its own using stored GPS coordinates.

Multi-Dog Households

Each dog wears their own Halo Collar, and all collars share the same fence boundaries through a single account in the Halo app. Fences can be toggled on or off for individual dogs without affecting the others. A multi-dog discount is available on collar purchases.

Active and High-Energy Breeds

A dog can cover more than 30 feet in a single second. Faster location updates translate directly to faster boundary response — Halo's 20-updates-per-second GPS detects a high-speed approach and begins the warning sequence before a slower system would even register the movement.

First-Time Dog Fence Users

Halo includes a structured training program built with Cesar Millan — lessons that teach dogs to recognize and respect fence boundaries through positive association, not punishment. Every dog learns at their own pace, and the program lives right in the Halo app to guide owners through each step.

Setup Guide

Create Your First GPS Fence in 3 Steps

See It In Action

Watch How Virtual GPS Fencing Works

This walkthrough shows one-tap fence creation, the patented escalating feedback system in action, and how the automatic "Come Back" command guides a dog back to the safe zone when they respond to the boundary.

Dog Owner Testimonials

What Owners Say About Virtual GPS Fencing

Virtual GPS Fencing FAQ

How does Virtual GPS Fencing work without Wi-Fi or cellular?

Halo Collar stores all fence boundaries directly on the collar hardware. The built-in dual-frequency GPS receiver calculates the dog's position relative to those stored coordinates — GPS works independently of connectivity. As long as the collar can detect movement toward the fence, boundary feedback occurs. Dogs stay protected even in remote locations with no internet access whatsoever.

Can a GPS fence be aligned with actual property lines?

Yes. Halo's one-tap fence creation uses satellite imagery to generate boundaries aligned with real property lines. Any fence can be adjusted, resized, or reshaped manually in the Halo app after creation, and custom polygon shapes with unlimited points are fully supported.

What feedback does a dog receive at the boundary?

Halo uses a patented escalating feedback system with six customizable types: three that prevent boundary crossings (Warning, Boundary, and Emergency) and three that reinforce the right behavior (Whistle, Good Dog, and Go Home). Owners can choose from sounds, vibration patterns, and optional static levels — including Cesar Millan's voice commands. Feedback only intensifies if the dog keeps moving toward the boundary. The moment they turn back, the collar plays an automatic "Come Back" command and all prevention feedback stops.

How many virtual GPS fences can be created?

There's no limit. Unlimited virtual GPS fences can be created and managed from the Halo app, each individually paused, edited, or enabled at any time.

Does direction detection prevent false corrections?

Yes. Halo's direction-detection technology reads whether a dog is moving toward or away from the boundary. If the dog is already heading back to the safe zone, the collar doesn't escalate — eliminating unnecessary corrections and keeping training clear and consistent.

Is Virtual GPS Fencing safe?

Yes. Halo is not a shock collar. The system is built around positive training principles developed with Cesar Millan. Static feedback — when enabled — delivers a gentle sensation, similar to a tap on the shoulder, and is always optional. Many dogs respond to sound or vibration alone. Feedback is gentle, progressive, and always paired with an encouraging "Come Back" audio cue. Owners choose the feedback types and intensity levels that work best for their dog, and the included training program introduces boundaries gradually and positively.

Is a subscription required for GPS fencing to work?

Yes. A Pack Membership Plan is required to activate GPS services, create and edit fences, and maintain cellular connectivity — similar to how a smartphone requires a data plan. Plans start at $9.99 per month and include LTE data for real-time tracking, firmware updates, and access to all app features including activity tracking, health monitoring, and instant recall.

What dog breeds and sizes does Halo Collar support?

Halo Collar works for any breed and age, provided the dog is over 5 months old, weighs at least 10 lbs, and has a neck size between 8 and 30.5 inches. Over 350 breeds are currently using Halo Collar — from high-energy working dogs to calmer companion breeds. Once trained, the system is effective across a wide range of temperaments and energy levels.

How small or large can a GPS fence be?

Halo GPS fences range from 900 square feet (roughly 30 × 30 feet) to 1,200 square miles. The 900-square-foot minimum makes Halo one of the few GPS dog fences genuinely suited to smaller suburban properties. Fences can't be cut, jumped over, or dug under — and they require no physical upkeep.

Does GPS fencing work in bad weather or under heavy tree cover?

Halo Collar 5 is IP67 waterproof and operates in temperatures from –22°F to 140°F, so rain, snow, and heat don't affect the hardware. GPS signal can be reduced under dense tree canopy or near tall buildings. Halo's AI software is designed to filter that interference and reduce drift. For heavily wooded properties, setting a slightly wider buffer zone around the boundary is recommended.

How does Halo compare to SpotOn GPS Fence?

Both Halo and SpotOn offer dual-band GPS, direction detection, and portable virtual fencing. The key differences: Halo supports fence areas as small as 900 sq ft (SpotOn requires a ⅓-acre minimum), includes Cesar Millan's structured training program, offers six feedback types including voice commands, and provides Halo Health™ activity tracking. SpotOn doesn't require a subscription for basic fencing. Halo's Pack Membership Plan ($9.99/mo) bundles cellular tracking, firmware updates, and full app access. For a detailed side-by-side, see Halo Collar 5 vs. SpotOn Fence.

Give Your Dog Freedom With Boundaries

Halo Collar 5 with Virtual GPS Fencing is available now. Wireless boundaries that go wherever the dog goes — with dual-frequency GPS accuracy, patented direction detection, and protection that works without wires, walls, or Wi-Fi. Trusted by more than 500,000 dog parents.

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