Fi Series 3 - Pets Animals
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Fi Series 3

9.4
Excellent
Free Plan • From $9.99/month or $99.99/year
language

description Fi Series 3 Overview

The Fi Series 3 is a sophisticated smart collar that combines high-end aesthetics with rugged durability. Designed for the modern dog owner, it features an incredibly long battery lifeup to 3 months on a single chargewhich sets it apart from competitors. The device uses LTE-M technology for better signal penetration in rural areas. Beyond tracking, it serves as a comprehensive health monitor, tracking steps and sleep patterns to help you manage your dog's overall wellness.

It is the ultimate choice for owners who want a 'set it and forget it' solution.

info Fi Series 3 Specifications

balance Fi Series 3 Pros & Cons

thumb_up Pros
  • check Exceptional 3-month battery life eliminates frequent charging concerns
  • check LTE-M technology provides superior connectivity compared to Bluetooth-only trackers
  • check Rugged, durable construction suitable for active dogs
  • check Sleek, modern aesthetic appeals to style-conscious pet owners
  • check Real-time GPS tracking with activity monitoring capabilities
  • check Reliable cellular connectivity for tracking across wide areas
thumb_down Cons
  • close Requires paid cellular subscription for full functionality
  • close LTE-M coverage may be limited in rural or remote areas
  • close Higher total cost of ownership due to ongoing subscription fees
  • close May be heavier than traditional collars, uncomfortable for small dogs
  • close Setup and app pairing process can be complex for non-technical users

help Fi Series 3 FAQ

How long does the Fi Series 3 battery actually last?

The Fi Series 3 offers up to 3 months of battery life on a single charge, significantly outperforming most competitors that require weekly charging. Actual battery life varies based on tracking frequency and LTE activity.

Do I need a subscription to use the Fi Series 3?

Yes, a cellular subscription is required for GPS tracking and real-time location features. Fi offers different subscription tiers starting around $9.99/month, with annual plans available at a discount.

What network does the Fi Series 3 use for tracking?

The Fi Series 3 uses LTE-M (LTE Cat M1) technology, which provides better coverage and lower power consumption than traditional LTE. This enables longer battery life while maintaining reliable connectivity.

Is the Fi Series 3 collar waterproof?

The Fi Series 3 is designed to be water-resistant and can handle rain, splashes, and brief submersion. However, it's recommended to remove the device during extended swimming or bathing sessions to maximize longevity.

What happens if my dog escapes or goes missing?

The Fi app provides real-time GPS tracking, geofencing alerts when your dog leaves designated safe zones, and a dedicated Lost Dog mode that activates live tracking and community assistance features to help locate your pet quickly.

What is Fi Series 3?
The Fi Series 3 is a sophisticated smart collar that combines high-end aesthetics with rugged durability. Designed for the modern dog owner, it features an incredibly long battery lifeup to 3 months on a single chargewhich sets it apart from competitors. The device uses LTE-M technology for better signal penetration in rural areas. Beyond tracking, it serves as a comprehensive health monitor, tracking steps and sleep patterns to help you manage your dog's overall wellness. It is the ultimate choice for owners who want a 'set it and forget it' solution.
How good is Fi Series 3?
Fi Series 3 scores 9.4/10 (Excellent) on Lunoo, making it one of the highest-rated options in the Pets Animals category. The Fi Series 3 earns its 9.4/10 rating primarily due to its exceptional 3-month battery life, which dramatically outperforms competitors, combined wi...
How much does Fi Series 3 cost?
Free Plan • From $9.99/month or $99.99/year. Visit the official website for the most up-to-date pricing.
What are the best alternatives to Fi Series 3?
How does Fi Series 3 compare to Hill's Science Diet Senior Cats Dry Food?
See our detailed comparison of Fi Series 3 vs Hill's Science Diet Senior Cats Dry Food with scores, features, and an AI-powered verdict.
Is Fi Series 3 worth it in 2026?
With a score of 9.4/10, Fi Series 3 is highly rated in Pets Animals. See all Pets Animals ranked.
What are the key specifications of Fi Series 3?
  • Weight: Approximately 85-100 grams (depending on size)
  • Charging: Magnetic USB charging cable
  • Materials: Durable polycarbonate housing with adjustable nylon strap
  • Dimensions: Approximately 1.5 x 2.5 x 0.75 inches
  • Battery Life: Up to 3 months (depending on usage)
  • Battery Type: Rechargeable lithium-polymer

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