Prices checked Oct 29, 2026 on official stores and pricing pages · 47 products and apps · no paid scores

Tractive DOG 6 vs Fi Series 3+

Criterion by criterion

Points out of 10 on each scored criterion. Tractive DOG 6: 1 wins · Fi Series 3+: 1 wins.

  • included10.0

    Live GPS over cellular

    10.0included
  • $5/mo6.5

    Required plan per month

    n/anot stated
  • 14 days6.3

    Battery life

    10.090 days
  • yes10.0

    Virtual fence

    10.0yes
  • $7910.0

    Price

    8.7$129

Verdict by profile

Full comparison table

Spec
Our score
Editorial score9.2/10No score
Rank in its category#1 of 4, gps dog collarsNo score
Price and running costs
Price$79 (Best in this row)$129
Planfrom $5/month (product page); plans page: 1-Year from $9/mo ($108/yr) or $11/mo ($132/yr); 2-Year from $6/mo ($144) or $7.50/mo ($180)Required, price not shown by the maker
Cost over 2 years$199$79 + 24 × $5/mo required planNot calculatedPlan price not published
Battery
Battery life14 days90 days (Best in this row)
Features
GPSYesYes
Network2G and/or LTE (CatM1) via 500+ partners incl. Verizon, AT&T, T-MobileLTE-M
Virtual fenceYesYes
Training & alertsVirtual fence alerts, bark monitoring, health/activity & sleep monitoring (no correction)No correction; escape alerts, Safe Zones, Lost Dog Mode, AI behavior tracking (barking, scratching, licking, eating, drinking)
Design and storage
Water resistanceIP68IP68 / IP66K
Minimum dog weight9 lbNot stated
Weight40 gNot 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.

Questions

Which is better, the Tractive DOG 6 or the Fi Series 3+?

Only one of them publishes enough data to be scored. Compare the criteria in the table: the Tractive DOG 6 wins 1 of 5.

Which one is cheaper?

The Tractive DOG 6, at $79 against $129 on the official stores on Oct 29, 2026.

Did you test both?

No. This comparison uses the makers' published specs and prices only, with the scoring formula from our methodology page.