Fi Series 3+
$129 against $524, a difference of $395.
Prices checked Oct 29, 2026 · Specs from official pages · No lab or field testing
Points out of 10 on each scored criterion. Halo Collar 5: 0 wins · Fi Series 3+: 2 wins.
$129 against $524, a difference of $395.

Only the Halo Collar 5 has enough published data to be scored.
90 days against 2 days.
| Spec | ||
|---|---|---|
| Our score | ||
| Editorial score | 8.7/10 | No score |
| Rank in its category | #4 of 4, gps dog collars | No score |
| Price and running costs | ||
| Price | $524List price $599 | $129 (Best in this row) |
| Plan | From $9.99/mo (Bronze); annual billing shown as Bronze $9.16/mo, Silver $13.74/mo, Gold $18.32/mo (pay 11 months) | Required, price not shown by the maker |
| Cost over 2 years | $763.76$524 + 24 × $9.99/mo required plan | Not calculatedPlan price not published |
| Battery | ||
| Battery life | 2 days | 90 days (Best in this row) |
| Features | ||
| GPS | Yes | Yes |
| Network | Unlimited cellular data on all major carriers (plan) | LTE-M |
| Virtual fence | Yes | Yes |
| Training & alerts | Cesar Millan training program in app, feedback system (prevention/warning), beacons | No correction; escape alerts, Safe Zones, Lost Dog Mode, AI behavior tracking (barking, scratching, licking, eating, drinking) |
| Design and storage | ||
| Water resistance | Not stated | IP68 / IP66K |
| Minimum dog weight | 10 lb | Not stated |
| Weight | Not stated | Not stated |
Highlighted: best value on a criterion we score.
Cost over 2 years = price + 24 months of the cheapest required plan, when the maker publishes both. Optional plans are left out. We never estimate a missing figure.
Only one of them publishes enough data to be scored. Compare the criteria in the table: the Fi Series 3+ wins 2 of 5.
The Fi Series 3+, at $129 against $524 on the official stores on Oct 29, 2026.
No. This comparison uses the makers' published specs and prices only, with the scoring formula from our methodology page.