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Fi Series 3+
FuzzRoost Recommended Best battery life Last evaluated Aug 2026

Fi Series 3+

“Best when you want a collar you rarely charge and already accept a subscription.”

Suitability Summary

Best For: Daily-wear GPS on dogs 6 kg+
Key Strength: Battery with base
Watch-Out Trade-off: You need true live pings in remote woods without the base
Interactive Sizing Checker Ideal fit (Size S/M)
18 kg
Indicative regional price:
No current offer in Portugal at verified stockists
View Merchant Offers

Technical Specifications

Weight 42g
Battery Up to 90 days with base
Subscription Required
Waterproofing Swimmer-rated (brand claim)
Coverage LTE-M
Tracking mode Collar + base beacons

Where to Buy

Regional Fulfillment

No live retailer offer in Portugal yet. We only show prices from a live merchant feed; we do not invent a price.

Why choose it

  • Long battery with base
  • Integrated collar

Trade-offs

  • Subscription
  • Heavier than a clip-on

Alternatives

Tractive GPS Tracker
GPS Trackers

Tractive GPS Tracker

Older clip-on SKU. Prefer the DOG 6 decision page for current notes.

Fit: Catalog continuity

You can open tractive-dog-6

Typical price No current offer in Portugal
PetSafe Guardian
GPS Trackers

PetSafe Guardian

Dedicated handheld receiver communicates directly without cellular SIMs.

Fit: Property or field work without a phone map

You want a city street map on your phone

Typical price No current offer in Portugal
Apple AirTag Pet Loop
GPS Trackers

Apple AirTag Pet Loop

Cheap crowd-sourced beacon for dense cities; not true live GPS.

Fit: Dense urban neighbourhoods

Rural woods or live escape alerts

Typical price No current offer in Portugal

Related guides

Editorial & Affiliate Transparency:

As an Amazon Associate, FuzzRoost earns from qualifying purchases. Amazon links are affiliate links (marked sponsored); other retailer links are plain. Commission never changes our recommendations or the price you pay.
Editorial & Veterinary Boundary: Recommendations support everyday comfort, safety, and hygiene, but never substitute for veterinary diagnosis or treatment. If your pet displays acute distress, sudden limping, or behavioral trauma, contact a licensed veterinarian.