TL;DR: The Fi Smart Collar is a GPS dog tracker starting at $149+ with a $19/month subscription, using GPS + LTE-M connectivity and a ~30-day battery life built for active dogs (owner forums; LinkedIn Fi). It competes with Tractive in the pet wearables market, which reached $3.69B in 2024 at a 14% CAGR (LinkedIn Brandark / Fortune).
About the fi smart collar
The Fi Smart Collar is the tracker most often named when an active-dog owner wants long battery life and cellular-grade location without a phone nearby. Fi (a US wearable startup) built its brand on a collar-first design with LTE-M coverage and multi-week battery — a different approach from clip-on trackers. This review uses owner forums and LinkedIn Fi sentiment, where the collar is cited at $149+ with $19/mo, GPS+LTE-M, and ~30-day battery, and compares it to the Tractive GPS tracker.
What is the Fi Smart Collar?
The Fi Smart Collar is a dog collar with an integrated GPS + LTE-M tracker and activity monitor. Unlike add-on tags, Fi builds the electronics into a collar form factor, which owners cite as more comfortable and less likely to snag. It uses LTE-M — a low-power cellular standard — to report location without relying on a nearby phone’s Bluetooth, and it logs steps and sleep like a fitness band for dogs.
Community and LinkedIn coverage place the hardware at $149+ with a $19/month subscription (owner forums; LinkedIn Fi).
How much does the Fi Smart Collar cost?
- Hardware: from $149+ (owner forums; LinkedIn Fi)
- Subscription: ~$19/month for LTE-M connectivity and features
That recurring fee is the core cost-of-ownership consideration. The pet wearables market context matters: Tractive passed €100M ARR with ~60% subscription revenue (LinkedIn Tractive), showing the subscription model is the industry norm for GPS pet trackers. Fi’s $19/mo is in line with that model.
How does Fi’s GPS + LTE-M work?
Fi uses GPS for precise outdoor location and LTE-M as the cellular backhaul to send that location to the app without a phone tether. This is the key difference from Bluetooth trackers (like Tile-style tags) that only work near a phone. For a dog that escapes or a hiking dog far from home, LTE-M coverage is what makes real-time recovery possible.
owner forums owners discuss Fi in the context of active and working dogs where range and battery matter most.
How long does the Fi battery last?
Fi is cited at a ~30-day battery life, a standout figure versus many clip-on trackers that need weekly charging (owner forums; LinkedIn Fi). Battery life depends on tracking mode — live-tracking drains faster — but the ~30-day claim reflects everyday use with periodic location pings. For owners who forget to charge, multi-week life is a major selling point.
How does Fi compare to Tractive?
| Factor | Fi Smart Collar | Tractive GPS tracker |
|---|---|---|
| Hardware | $149+ (Reddit/LinkedIn Fi) | Varies; subscription-led |
| Subscription | ~$19/mo | Subscription model (60% of €100M ARR, LinkedIn Tractive) |
| Connectivity | GPS + LTE-M | GPS + cellular (LTE-M class) |
| Battery | ~30 days (Reddit/LinkedIn Fi) | Varies by model |
| Form | Collar-integrated | Clip-on/collar tag |
| Scale | Active-dog focus | 1.4M users, acquired Whistle 2025 (LinkedIn Tractive) |
Tractive’s advantages are scale (1.4M users), a subscription business that passed €100M ARR, and its 2025 acquisition of Mars’ Whistle broadening North American reach (LinkedIn Tractive). Fi’s advantages are the collar-integrated design and the cited ~30-day battery for active dogs. Both are legitimate; pick on form factor and battery priority.
Is the Fi subscription worth it?
The $19/mo funds LTE-M connectivity and the app’s location/activity features — there is no live tracking without it. Given the pet wearables market is subscription-driven (Tractive ~60% subscription revenue, LinkedIn Tractive), the fee is expected. Owners who value recovery capability for an escape-prone or active dog generally view it as worth it; owners of strictly indoor dogs may not.
What do owners and the community say?
owner forums frames Fi as the active-dog, long-battery option at $149+ with $19/mo and GPS+LTE-M (owner forums). LinkedIn Fi coverage reinforces the ~30-day battery and LTE-M positioning. The community caveat, consistent across GPS trackers, is that LTE-M coverage depends on carrier footprint — rural gaps can affect location updates. The verdict: Fi is a top pick for active dogs wanting weeks of battery in a collar form.
Who should buy the Fi Smart Collar?
- Active or working dogs needing long range and long battery.
- Escape-prone dogs where real-time LTE-M recovery matters.
- Owners wanting a collar-first design rather than a clip-on tag.
Who should skip it?
- Strict budgets — the $19/mo subscription adds up; consider one-time GPS or a basic tag.
- Indoor-only pets — a camera like Petcube (~$125) may suffice (Reddit).
- Rural areas with poor LTE-M — verify coverage before buying.
How do you set up the Fi Smart Collar?
Setup is collar-first:
1. SIZE THE COLLAR — Fi ships sizes by neck circumference; a snug-but-two-finger fit prevents the tracker from shifting.
2. CHARGE FULLY — the cited ~30-day battery assumes a full charge and scheduled (not constant live) pinging (Reddit/LinkedIn Fi).
3. PAIR IN APP — connect over Bluetooth for initial setup, then activate the LTE-M subscription for outdoor tracking.
4. TEST RANGE — walk the dog out of phone-Bluetooth range to confirm LTE-M handoff works in your area.
5. SET SAFE ZONES — define home/base so escape alerts fire only on real departures.
What activity and health data does Fi track?
Fi logs steps, rest, and (on some models) sleep, presenting dog “fitness” scores. owner forums owners value this for active breeds where under-exercise shows as behavior issues. It is not a veterinary monitor — for continuous vital-sign tracking, collars like PetPace 2.0 or Invoxia Minitailz add heart-rate and respiration (LinkedIn PetPace; LinkedIn Invoxia). Fi’s scope is location plus activity, not diagnostics.
What happens in lost-dog mode?
When a dog slips the leash, Fi switches to more frequent LTE-M pings to narrow the location, and the app shows a live map. The ~30-day battery means even a dog lost for days still reports — a key advantage over clip-on trackers that may die in a week (Reddit/LinkedIn Fi). As with Tractive, recovery depends on pre-event subscription and coverage.
Related reading
- Tractive GPS Tracker Review — €100M ARR, 1.4M users, Whistle acquirer.
- Petcube Camera Review — ~$125 indoor monitor.
- Furbo 360 Pet Camera Review — ~$210 engagement camera.
- PetPace 2.0 Collar — AI health-monitoring collar.
FAQ
How much does the Fi Smart Collar cost?
Hardware starts at $149+ with a ~$19/month subscription for LTE-M connectivity (owner forums; LinkedIn Fi).
How long does the Fi battery last?
Approximately 30 days in everyday use, though live-tracking mode drains faster (owner forums; LinkedIn Fi).
Does Fi use LTE-M or Bluetooth?
It uses GPS for location and LTE-M cellular for reporting, so it works without a nearby phone — unlike Bluetooth-only tags (owner forums; LinkedIn Fi).
Is the Fi subscription worth it?
If you need real-time recovery for an active or escape-prone dog, yes; the $19/mo funds LTE-M and app features. The model is industry-standard (Tractive ~60% subscription, LinkedIn Tractive).
Is Fi better than Tractive?
Fi offers a collar-integrated design and ~30-day battery for active dogs; Tractive has 1.4M users, €100M ARR, and acquired Whistle in 2025 (LinkedIn Tractive). Pick on form factor and battery priority.
Sources
- owner forums: Fi Smart Collar $149+, $19/mo, GPS+LTE-M, ~30-day battery, active-dog focus.
- LinkedIn Fi: Fi collar positioning — LTE-M, ~30-day battery.
- LinkedIn Tractive: €100M ARR, ~60% subscription, 1.4M users, acquired Mars’ Whistle 2025 — comparison context.
- LinkedIn Brandark / Fortune: Pet wearables $3.69B in 2024, 14% CAGR — market context.
