Short answer: pick the Halo Collar 5 ($524, about $844 over three years) for a smaller yard: fences from 900 sq ft against 1/2 acre, dual-frequency GPS and a 10 lb minimum. Pick the Invisible Fence GPS Flex ($599, about $797) for a big lot and long battery: up to 80 hours per charge and the first year of tracking included, then $99 a year.
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The better stated figure on each line is highlighted (7 lines can be compared); if either maker does not state a value, the line is left undecided. The 3-year cost adds 36 months of plan at the cheapest billing cycle, at US prices checked on November 9, 2026.
Criterion
Halo Collar 5
Invisible Fence GPS Flex
Calculated scoreBetter: the highest
9.2/10
9.0/10
Device priceBetter: the lowest
$524
$599
3-year costBetter: the lowest
$844
$797
Subscription
Required, from $8.74/mo
Required, from $8.25/mo
Type
GPS dog fence
GPS dog fence
Containment
Custom shapes, several fences
Custom shapes, several fences
Fences
Unlimited on the collar (5 on Bronze, 20 on Silver, unlimited on Gold)
Unlimited
GPS hardwareBetter: dual-frequency
Dual-frequency
Single-frequency
Live tracking
Live, cellular
Live, cellular
Battery lifeBetter: the longest
48 h
80 h
Boundary cues
Tone + vibration, static optional
Tone + vibration, static optional
Smallest dog
10 lb
Not stated
Neck size
8 to 30.5 in
8 to 28 in
Smallest yardBetter: the smallest
900 sq ft
1/2 acre
Water resistance
IP67
Waterproof
Warranty
1 year
1 year
Return windowBetter: the longest
90 days
45 days
What the numbers mean
Invisible Fence is the buried-wire brand, and the GPS Flex is its wire-free option, with local dealers selling paid training sessions. Halo is a direct-to-consumer brand that does its training in the app, with recorded Cesar Millan voice cues.
Both draw unlimited fences (on Halo, the number depends on the plan tier) and track over LTE. Neither one requires static.
Our pick for each kind of owner
The right choice depends on your dog, your yard and the monthly bill you accept. Here is who should buy which.
Tight budget
Invisible Fence GPS Flex Fence
Over three years the Invisible Fence GPS Flex costs $797 against $844 for the Halo Collar 5, device and plan included, at prices checked on November 9, 2026.
Which is better, the Halo Collar 5 or the Invisible Fence GPS Flex?
The Halo Collar 5 for most owners: it scores higher overall (9.2 vs 9.0/10). Your yard and your dog can still flip it: see the picks by profile on this page.
Do the Halo Collar 5 and the Invisible Fence GPS Flex need a subscription?
The Halo Collar 5 needs a Pack Membership Bronze (from $8.74/mo). The Invisible Fence GPS Flex needs a GPS tracking plan (from $8.25/mo). Plan prices as of November 9, 2026.
Which one costs less over three years?
The Invisible Fence GPS Flex: $797 against $844 over 36 months, device and plan included, at the cheapest published billing cycle. Try your own numbers in the [3-year cost calculator](/tools/gps-dog-fence-cost-calculator/).
Which one suits a small dog?
The Halo Collar 5 is rated for dogs from 10 lb. Invisible Fence gives a neck range (8 to 28 in) rather than a minimum weight for the Invisible Fence GPS Flex.