PC
“The Fi Series 3+ earns our Most Durable pick — 300-pound pull resistance and a 3-month battery life set a new standard for GPS collars”
The Fi Series 3+ Smart Collar ($99.00) is recommended with a 7.8/10 consensus score across 7 expert reviews. Experts highlight 3-month battery life — longest in the gps collar category by a wide margin and 300-pound pull resistance — pcmag 'most durable' pick. PCMag says: "The Fi Series 3+ earns our Most Durable pick — 300-pound pull resistance and a 3..." Best for: GPS-first dog owners, Former Whistle users, Active dogs needing durable hardware.
Recommended7 Expert Reviews
Price Range$99.00
Check Price on Amazon →Affiliate link — we earn a commission at no extra cost to you
Fi Series 3+ Smart Collar
GPS Pet Trackers
SHE ScoreAbove Average
SmartHomeExplorer proprietary rating
6.1/10
7 expert sources
Compatibility Breadth5/10
Setup Ease5.4/10
Reliability6.6/10
Value Rating8.3/10
Future-Proofing5/10
The Fi Series 3+ Smart Collar earns a SHE Score of 6.1/10, driven by strong value (8.3/10) with room to improve in future-proofing (5/10). Based on 7 expert sources and SmartHomeExplorer compatibility analysis.
How we calculate the SHE Score →Expert Consensus: 7.8/10 across 7 sources
Last verified:“The Fi Series 3+ earns our Most Durable pick — 300-pound pull resistance and a 3-month battery life set a new standard for GPS collars”
Key Features
- ✓ 3-month battery life
- ✓ LTE GPS
- ✓ 300 lb pull resistance
- ✓ Apple Watch integration
Best For
GPS-first dog ownersFormer Whistle usersActive dogs needing durable hardware
What Experts Agree On
What Experts Love
- ✓ 3-month battery life — longest in the GPS collar category by a wide margin
- ✓ 300-pound pull resistance — PCMag 'Most Durable' pick
- ✓ LTE GPS tracking with Apple Watch companion app integration
- ✓ Waterproof, 1 oz weight — minimal impact on dogs of any size
Common Criticisms
- ✗ $19/month subscription required — collar is non-functional without it
- ✗ No health vitals monitoring — activity and sleep tracking only
- ✗ No ecosystem expansion to feeders, environment, or health monitors
What The Experts Say
DO
“Fi delivers the best GPS tracking experience we've tested, with a battery life that makes weekly charging a thing of the past”
Ready to buy the Fi Series 3+ Smart Collar?
Check Price on Amazon$99.00 · 7 expert sources · 7.8/10 consensus
Frequently Asked Questions
Is the Fi Series 3+ Smart Collar worth it?
Fi Series 3+ Smart Collar earns a 7.8/10 consensus score across our 12 expert sources. It is rated "Recommended" — GPS-first dog owners. At $99.00, The Fi Series 3+ earns our Most Durable pick — 300-pound pull resistance and a 3-month battery life set a new standard f...
Who is the Fi Series 3+ Smart Collar best for?
Fi Series 3+ Smart Collar is best for: GPS-first dog owners, Former Whistle users, Active dogs needing durable hardware. Experts rate it "Recommended" overall.
How does the Fi Series 3+ Smart Collar compare to other Pet Care options?
Among the Pet Care products we have reviewed, Fi Series 3+ Smart Collar ranks above average with a 7.8/10 score. Fi delivers the best GPS tracking experience we've tested, with a battery life that makes weekly charging a thing of the...
What smart home systems does the Fi Series 3+ Smart Collar work with?
Fi Series 3+ Smart Collar works with major smart home platforms. Check our compatibility notes on the product page for any setup requirements or hub dependencies.
What are the pros and cons of the Fi Series 3+ Smart Collar?
The main pros of the Fi Series 3+ Smart Collar are 3-month battery life — longest in the gps collar category by a wide margin and 300-pound pull resistance — pcmag 'most durable' pick. The main downside is $19/month subscription required — collar is non-functional without it. Overall, experts rate it "Recommended" with a 7.8/10 consensus score.
Affiliate disclosure: SmartHomeExplorer.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you. This consensus review is based on 7 independent expert reviews — we did not test this product ourselves. Always verify current prices and availability before purchasing.