Fi Series 3 and 6-month subscription ($20 activation fee not included) — Discontinued | Limited Stock

Curious about Fi? Start here.

The Fi Series 3 is a previous-generation Fi GPS tracker and a lower-cost way to experience the core Fi tracking system before deciding whether the newer Series 3+ features are important for your dog.

Series 3 provides GPS location tracking and Lost Dog Mode, along with activity and rest tracking. It offers up to three months of battery life and carries IP68/IP66K waterproof ratings.

Discontinued clearance: 50% off while our remaining inventory lasts. Once these Series 3 modules are gone, they will not be restocked.

Six months of Fi Membership are included. A $20 one-time Fi activation fee is not included and is paid separately to Fi during activation. After the included six-month period, continued use requires a paid Fi Membership under Fi’s then-current consumer terms.

Tracker only — collar and adapter are not included. This listing is for the Fi Series 3 module itself. A compatible collar or Fi adapter must be purchased separately for your dog, and a compatible Fi Base is also not included.

A good fit for: customers who want a lower upfront hardware cost to experience Fi GPS tracking, existing Series 3 users who need another module, and customers who primarily want GPS safety without paying upfront for the newest-generation features.

What Series 3+ adds: newer GPS performance, AI-powered behavior insights, and additional current-generation features. If those capabilities matter to you, choose Series 3+ instead.

Previous-generation Fi. Core GPS tracking. Limited remaining inventory.