Gear Score Methodology
PetPal Gear Score
GPS Fence or GPS Tracker: Which One Does Your Dog Actually Need? (2026)
Editorial synthesis of manufacturer documentation from SpotOn, Halo, PetSafe, and Tractive, with every subscription rate, weight floor, and neck-size range re-fetched from the manufacturer's own live pages on August 21, 2026, alongside the American Animal Hospital Association's 2015 Canine and Feline Behavior Management Guidelines, the American Veterinary Society of Animal Behavior's 2021 Position Statement on Humane Dog Training, RSPCA welfare guidance, and VCA Animal Hospitals' clinical explainer on invisible fences. Five-year totals in this guide are arithmetic on those published rates, with the inputs shown. Prices, availability, listing condition, and listing seller were verified against the Amazon Creators API on August 21, 2026. PetPalHQ does not run a containment testing lab.
Escape-Risk Coverage Score = (Prevention Capability × 0.30) + (Recovery Capability × 0.25) + (Cost Transparency and Lock-In × 0.25) + (Welfare and Household Fit × 0.20)Factor breakdown
Prevention Capability
30%Whether the system actually attempts to hold the animal inside a boundary. Containment collars score high; trackers score near the floor by design, because an alert is not a boundary. Weighted heaviest because prevention is the job most buyers believe they are purchasing when they search for a virtual fence.
Recovery Capability
25%Whether the system tells you where the dog is once it has left, and whether that capability is included or sold separately. A containment system with no tracking scores near the floor; a live tracker scores at the top. Recovery is the half of the problem that survives every containment failure.
Cost Transparency and Lock-In
25%Whether the manufacturer publishes its recurring rates plainly, and what happens to the product when payment stops. A system whose core function keeps working unpaid scores at the top; one that becomes inert scores low; and one that publishes a headline rate but no discounted term structure scores between them, because a buyer can budget it but cannot shop it.
Welfare and Household Fit
20%Whether the system uses aversive stimulus, and how wide a range of dogs and properties its published specifications serve. Products with no stimulus score at the top of the welfare half; static-correction products are capped, reflecting the AAHA and AVSAB positions cited on this page. Narrow weight floors and large minimum property sizes reduce the fit half.
See all score methodologies on the Gear Score index.