Fi vs Tractive: The True Cost of a GPS Dog Tracker

A GPS dog collar is not a one-time purchase. Fi and Tractive both sell a device, then bill for as long as you want it to keep working. The sticker price is the small number. This guide covers what each company charges for the device, what each subscription tier costs, what each company says happens if you stop paying, and two documented cases of tracker hardware going dark after a company changed its plans. Every figure below is sourced and dated, since both companies run live pricing.

What the collar costs before the subscription

Fi does not sell its Series 3+ collar as standalone hardware; it only sells a prepaid membership, with the collar bundled in, and does not publish a separate device price. Source: fitracking.com, observed July 9, 2026.

Tractive sells its DOG 6 tracker separately, at $47.40, marked down from a $79 list price, per Tractive's own product page, fetched directly July 9, 2026, a live promotional price, not a fixed MSRP. A separate search turned up a commonly cited $49.99 figure from third-party sites, a conflicting, lower-confidence number since it did not come from Tractive's own page. Tractive charges no activation fee. Source: tractive.com/en/pd/gps-tracker-dog, fetched directly, observed July 9, 2026.

Fi does charge fees: a one-time $20 USD ($30 CAD) activation fee, plus a $20 reactivation fee if you cancel and later resume. Source: support.tryfi.com, via search snippet, observed July 9, 2026. Direct fetch of that support article returned an error, so treat the fee amounts as a medium-confidence read of Fi's stated policy, not an independently verified figure.

The subscription that never stops

Fi sells no monthly plan; every membership is prepaid, with a minimum 6-month commitment before cancellation. Source: support.tryfi.com, via search snippet, observed July 9, 2026.

| Fi plan | Price | Per-week equivalent | Billing | |---|---|---|---| | 6-month prepaid | $99 USD | $3.80/week | Once per 6 months | | 1-year prepaid | $189 USD | $3.60/week | Once per 12 months | | 2-year prepaid | $339 USD | $3.20/week | Once per 24 months |

After a 30-day free trial, membership auto-converts to the 1-year plan at $189 USD ($279 CAD plus tax) and auto-renews annually unless canceled. Source: support.tryfi.com, via search snippet, observed July 9, 2026.

Tractive splits its subscription into Basic and Premium tiers.

| Tractive plan | Term | Price | Per-month equivalent | |---|---|---|---| | Basic | 1 year | $108 | $9/month | | Basic | 2 years | $144 | $6/month | | Basic | Monthly | $13/month | $13/month (select countries only) | | Premium | 1 year | $120 | $10/month | | Premium | 2 years | $168 | $7/month | | Premium | 5 years | $300 | $5/month |

Basic offers a true no-contract monthly option in select countries, which Fi does not offer at any tier. Premium's shortest term is a full year. All plans carry a 30-day money-back guarantee. Source: tractive.com/en/c/plans, fetched directly, observed July 9, 2026.

See how these terms compound over years of ownership on the GPS tracker cost calculator.

What happens if you stop paying

The companies genuinely differ here, per each one's own explanation. Fi's position, per a support-article snippet, is that a lapsed membership does not fully kill the collar: it falls back to a lower-accuracy Wi-Fi and Bluetooth method that only works if the dog is near a known Wi-Fi network or the Fi base station, giving a general "last seen near this network" location rather than continuous GPS. Source: support.tryfi.com, via search snippet, observed July 9, 2026. That article returned an error on direct fetch, so treat this as a medium-confidence read of Fi's own position, not an independently verified test.

Tractive's position is more absolute. The DOG 6 has a built-in SIM card, and the subscription pays for the cellular data that carries a location ping to the app. Without an active plan, the tracker cannot communicate its location at all, per Tractive's own product and blog content. Source: tractive.com/en/pd/gps-tracker-dog, fetched directly, and tractive.com/blog/en/tech/gps-tracker-without-subscription, via search snippet, observed July 9, 2026.

By each company's own account, a lapsed Fi collar degrades to occasional Wi-Fi pings near known networks, while a lapsed Tractive collar goes silent.

The AirTag baseline: no subscription, but not real GPS

Apple's AirTag is the honest no-subscription comparison: it shows what "no subscription" costs in capability.

A single AirTag is $29.00, or $99.00 for a 4-pack ($24.75 each), fetched directly from Apple's store, observed July 9, 2026. There is no AirTag-specific subscription; tracking runs entirely on Apple's free Find My network tied to an existing Apple ID. Source: apple.com/airtag, fetched directly, observed July 9, 2026.

The trade-off, per Apple's own page: AirTag has no cellular radio. It broadcasts Bluetooth that other Apple devices in the Find My network, described by Apple as "more than a billion iPhone, iPad, and Mac devices," detect and relay back anonymously. That means no continuous, live GPS: it only reports a location when another Apple device passes within Bluetooth range, so a dog that runs into a rural or low-device-density area may go long stretches with no update. Source: apple.com/airtag, fetched directly, observed July 9, 2026.

The battery is a user-replaceable CR2032 coin cell, claimed by Apple to last more than a year, a commodity part with no single authoritative replacement price to cite.

The platform-risk story: when the company disappears

Subscription cost is one risk. The other is that the company backing it can shut the hardware off entirely, which has already happened twice in the pet-tracker category.

Tractive announced it had acquired Whistle, the connected pet-wearable brand owned by Mars Petcare, on July 28, 2025. About a month later, on August 31, 2025, Whistle's trackers and backend were shut down for good; Tractive confirmed it would not support Whistle's backend. Owners could claim a free replacement Tractive tracker through September 30, 2025 by submitting their device's serial number; those who missed that window lost eligibility. Source: tractive.com/blog/en/press/tractive-acquires-whistle and engadget.com, both fetched directly, observed July 9, 2026.

Furbo, a pet-camera brand in the same connected-device category, ran a similar sequence: any camera purchased before August 2017 reaches end of life on September 4, 2024, after which both the hardware and app stop working, citing difficulty maintaining older, non-upgradeable components. Source: help.furbo.com, via search snippet corroborated by a second search pass, observed July 9, 2026. That was a planned end of life, but the result for the owner is the same as a sudden failure: a paid-for device stops working.

Neither Fi's nor Tractive's current hardware has failed this way, but the category already has, twice in a little over a year, and that risk sits with the company, not the owner.

Which profile fits which owner

Fi suits an owner comfortable prepaying 6 months to 2 years at a time, who values that a lapsed membership degrades to a rough Wi-Fi location rather than going fully silent, by Fi's own account. Tractive suits an owner who wants hardware and subscription sold separately, wants a true no-contract monthly option on Basic, and accepts that a lapsed subscription means the tracker goes silent, by Tractive's own account. AirTag suits an owner who wants zero ongoing cost, already lives in the Apple ecosystem, and treats it as a backup locator for a dog near populated areas, not a live tracker for a dog that might run into open land.

The spend gap between a 1-year owner and a 5-year owner grows large once the math compounds. Run your own time horizon on the GPS tracker cost calculator before deciding.

FAQ

Does Fi work if I stop paying the subscription?

By Fi's own stated position, a lapsed membership falls back to a lower-accuracy Wi-Fi and Bluetooth method that only works near a known Wi-Fi network or the Fi base station, not continuous GPS. Source: support.tryfi.com, via search snippet, observed July 9, 2026.

Does Tractive work if I stop paying the subscription?

No, per Tractive's own product and blog content. The subscription pays for the DOG 6's built-in SIM data; without an active plan, the tracker cannot communicate its location at all. Source: tractive.com/en/pd/gps-tracker-dog, fetched directly, observed July 9, 2026.

Is an AirTag a real substitute for Fi or Tractive?

Not for continuous tracking. It has no cellular radio and no subscription, so it costs nothing after the $29.00 purchase, but it only reports a location when another Apple device passes within range and relays the ping. Source: apple.com/airtag, fetched directly, observed July 9, 2026.

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