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GPS ZF550 Check price on Amazon

GPS Wireless Dog Fence System, Custom Boundary Electric Fence for Medium Large Dogs, Dual Mode GPS Dog Collar 6561FT Radius Range, Rechargeable IPX7 Waterproof, Outdoor Use - No Subscription Required Review

By Dr. Lena Ortiz · Canine wellness writer · Published 2026-05-14 · Updated 2026-06-25

4.2 (37) Amazon rating$119.99200+ bought last month

Our verdict

The ZF550 lets you draw a custom-shaped boundary instead of a fixed circle, reaches up to 6,561 feet, and requires no ongoing subscription, with a 4.2 star average from 37 reviews backing it up.

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Best for

Medium to large dog owners who want a custom-shaped boundary and a one-time purchase with no subscription fees.

Skip if

You need a range beyond roughly 6,561 feet or already have a subscription-based system you are happy with.

  • Priced 100% above the category median ($59.99 across 100 tracked models)

Our scorecard

4.1/5 overall
  • Owner rating4.2/5

    4.2 average across 37 owner ratings

  • Popularity1.1/5

    37 owner reviews, fewer than most models here

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog and cat food, health, gear and grooming we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

This dual mode GPS collar lets you set a custom boundary shape rather than being locked into a plain circle, with a range that adjusts up to 6,561 feet to cover sizable properties. It is rechargeable and rated IPX7 for water resistance, so it holds up to rain and regular outdoor use.

A standout feature is that it requires no subscription, so the $119.99 purchase price is the only ongoing cost. Detailed spec information beyond the listing description is limited, but the 37 reviews averaging 4.2 stars suggest it works as described for most buyers.

Pros

  • Custom boundary shaping instead of a fixed circle
  • Adjustable radius up to 6,561 feet covers sizable properties
  • No subscription fees keep ongoing costs at zero
  • IPX7 waterproof and rechargeable for regular outdoor use

Cons

  • Detailed spec sheet is thin, so buyers rely mostly on the listing description
  • Dual mode setup may take some initial trial and error to get the boundary right

Performance notes

The collar operates in dual mode with a custom boundary you draw rather than a fixed shape, adjustable up to 6,561 feet in radius. It is rated IPX7 for water resistance and is rechargeable, and it requires no subscription to use.

What buyers say

With 37 reviews averaging 4.2 stars, this fence has a reasonable, if modest, track record. That is enough of a sample to suggest it performs close to what is advertised for most buyers, without being an especially large body of feedback.

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Frequently asked questions

Does this fence require a subscription?

No, it is listed as requiring no subscription, so the purchase price is the only cost involved in using it.

How large an area can it cover?

The radius adjusts up to 6,561 feet, and the boundary is custom-shaped rather than a fixed circle, which helps with irregularly shaped yards.

Is the collar waterproof?

Yes, it carries an IPX7 rating and is rechargeable, so it can handle rain and regular outdoor play without issue.

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