Fi Series 3 Smart Dog Collar vs Whistle GO Explore
Head-to-head comparison based on trust scores, features, pricing, and real user feedback.
Our pick: Fi Series 3 Smart Dog Collar (Trust Score 9.4 vs 8.5)
9.4
Excellent
Best Overall
Pros
- +3-month battery life in normal mode
- +Escape detection with instant alerts
- +Durable and waterproof IPX8
Cons
- −Requires monthly subscription for GPS
- −Not designed for cats or small dogs under 10 lbs
Don't buy if
- ⚠ GPS tracking requires an active subscription plan starting at $99/year; the collar is not functional without it.
8.5
Excellent
Best Battery Life
Pros
- +Health monitoring detects behavioral changes like excessive licking or scratching
- +Up to 20-day battery life
- +AT&T LTE provides wide US coverage
Cons
- −Monthly subscription required ($9.95/month or $95.40/year)
- −Bulkier than competitors — not ideal for small dogs under 15 lbs
Don't buy if
- ⚠ Device is quite large — check sizing before buying for small breeds
- ⚠ Health monitoring is behavioral, not medical — don't rely on it for diagnoses