Tractive vs Fi vs Halo (2026): Cost, Battery, Which to Buy

Tractive is the right choice for most owners, and in most of Europe it is realistically the only one of the three. It is the cheapest to run, on its Premium plan it works in 175+ countries, and it now tracks health signals such as scratching and resting heart rate. Pick the Fi Series 3+ if you hate charging, since Fi rates its battery at up to three months. Pick the Halo Collar 5 only if you need a real GPS fence that stops your dog at the boundary, and only if you live in the US or Canada.

All three put a GPS tracker with its own SIM on your dog’s collar, and all three need a subscription. Where they part ways is what the collar does when your dog heads for the gate, how often you have to charge it, and what it costs over its life. We compared them using each maker’s current specifications, plan and support pages, plus published owner reports. Prices are US list prices from each official store on 29 September 2026. European prices are set separately, and all of them change often, so check before you buy.

Tractive vs Fi vs Halo at a glance

	Tractive DOG 6	Fi Series 3+	Halo Collar 5
Best for	Most owners, EU and US	Longest battery	A true GPS fence
Collar price	$79	$129	$599 list
Cheapest plan	$144 for 2 years (Basic*)	$339 for 2 years	$9.99/month (Bronze)
Two-year total	about $223	about $468	about $730 to $810
Battery (maker’s figure)	up to 6 days, 14 with Power Saving Zones	up to 3 months	up to 48 hours
When your dog leaves	Alert on your phone	Alert on your phone	Collar cues the dog at the boundary
Health tracking	Activity, sleep, barking, scratching, resting heart and breathing rate	Activity, sleep, barking, licking, scratching, eating, drinking	Activity reports (Silver plan and up)
Where it is sold	US and Europe; Premium works in 175+ countries	US, Canada, Mexico, UK, much of the EU	US and Canada only

*Tractive’s Basic plan works in one country of your choice and keeps 24 hours of location history. Premium ($168 for two years) covers 175+ countries and keeps a year.

What each one does when your dog gets out

Tractive and Fi are trackers. You draw a safe zone in the app, and when your dog leaves it your phone gets an alert; the collar itself does nothing to the dog. From there you follow its position live. Tractive updates every few seconds in Live mode, and Fi’s Lost Dog Mode can also ask nearby Fi users to help search.

Halo is a containment system, and that is the difference that matters most, even though a spec sheet won’t make it obvious. Its fences are stored on the collar, so they keep working without signal. As your dog approaches a boundary, the collar gives a warning cue and escalates until the dog turns back. You choose the cues: tones, vibration, or an optional static stimulus with adjustable levels. The Collar 5 keeps GPS on at all times and, by Halo’s own figure, takes 20 location readings per second, which is how it can react at the line instead of after the dog is through. None of that helps without training, and our step-by-step GPS dog fence setup guide covers how to do it.

Tractive vs Fi

Both are trackers, so the choice comes down to cost, battery and where you live.

Tractive is much cheaper to own. The DOG 6 costs $79 and the two-year Basic plan $144, about $223 for two years. Premium is the plan to get if you travel with your dog: it adds coverage in 175+ countries (Basic works only in the one country you pick), a year of location history, data export and family sharing, and costs $168 for two years or $300 for five. Fi charges $129 for the Series 3+ and $339 for a two-year membership, about $468 in total, and every Fi plan has a six-month minimum commitment.

On battery, Fi wins by a wide margin. Fi rates the Series 3+ at up to three months per charge, and depending on how active your dog is, real-world figures run from about two weeks up to that maximum. Tractive quotes up to six days for the DOG 6, or up to 14 if you set up Power Saving Zones at home. For dogs over 20 kg, the DOG 6 XL stretches that to 20 days, or 42 with Power Saving Zones. Tractive also sells an XL Adventure version with an extra-strong case for dogs over 25 kg.

Tractive now leads with health. It tracks activity, sleep, barking and, most recently, scratching, plus resting heart and breathing rate, and sums it all up in a weekly report with alerts when patterns change. Fi’s Series 3+ covers a similar set of behaviours (barking, licking, scratching, eating and drinking) and works with Apple Watch. Neither one diagnoses anything. Both flag changes worth raising with your vet.

Where you live matters too. Tractive, an Austrian company, sells across Europe and the US. On Premium its tracker runs on 2G or LTE-M networks in 175+ countries; Basic covers only the country you choose, and Tractive doesn’t offer Basic everywhere. Fi has sold the Series 3+ in the UK and EU since March 2026 and now lists 29 countries where you can buy it, so check that yours is one of them.

For most people that makes Tractive the pick. Fi makes sense if you want to forget about the charger and don’t mind the higher running cost.

Fi vs Halo

These two answer different questions. Fi tells you your dog has left; Halo tries to stop it leaving. If your dog is a steady companion who now and then slips through an open gate, the Series 3+ does the job for a fraction of the price and runs for weeks between charges. If you need to keep a dog on an unfenced property every day, Fi can’t do that and Halo can.

You pay for it, though. The collar is about $600, the plan runs $9.99 to $19.99 a month (Bronze allows five fences, Silver 20, Gold unlimited), and the battery is rated for up to 48 hours, which in practice means charging it every night. Halo says the Collar 5 recharges fully in about an hour.

Fi’s newest collar doesn’t change that picture. The Fi Ultra, launched in July 2026, keeps tracking over T-Mobile’s Starlink satellite service when there is no cell signal, which suits owners in rural and back-country areas. It is sold only in the US, costs $199 for new members (existing Fi members pay $299 to add one) plus a membership, and lasts about two days per charge.

Tractive vs Halo

This is where the price gap is widest: about $223 over two years for Tractive, roughly three times that for Halo. Tractive is the one to buy if you want to know where your dog is, whether it’s on a walk with you, on holiday or off after a deer. Halo is for when the boundary itself is the problem. Maybe you have no fence, or a fence your dog keeps beating, or land too big to fence, and you’re prepared to do the training. If the real issue is one weak spot in a fence you already have, fixing it and adding a Tractive usually costs less.

Buying in Europe

If you live in Germany, France, Italy, Spain or elsewhere in the EU, the choice narrows. Tractive is the default: it’s sold locally, with euro pricing, local support and a local warranty. If you take your dog across borders on holiday, budget for Premium, since Basic only works in the one country you pick. At US prices that brings the two-year total for a DOG 6 to about $247. The Fi Series 3+ has become a real alternative in the UK and many EU countries, bought direct from Fi, although the Ultra isn’t sold outside the US.

Halo doesn’t ship to Europe at all. An imported collar comes without local warranty or support, and using a static-stimulation collar on a dog is prohibited under animal-welfare law in several countries, Germany and Austria among them. You can run the Halo on tones and vibration only.

Other options worth knowing

If the subscription is what puts you off, some trackers build lifetime connectivity into the purchase price (PitPat is one), and radio-based collars such as Garmin’s need no plan at all, though they only work within range of a handheld. For walks beyond cell coverage, satellite trackers are starting to appear. Besides the Fi Ultra, SATELLAI showed its satellite-connected Tracker Ultra at IFA 2026 and plans to launch it, along with a Cat Tag, in the US, Europe and Japan by the end of 2026. Our best GPS dog trackers roundup covers the wider field.

The verdict

For most owners, and almost everyone in Europe, get the Tractive DOG 6, or the DOG 6 XL if your dog is over 20 kg. It costs the least to run, works in the most places, and its health tracking is strong. You can see it at the Tractive store.

If you want to charge as rarely as possible and the higher membership fits your budget, the Fi Series 3+ is the better buy; it’s available from Fi. And if you need to keep a dog in without a physical fence, live in the US or Canada, and are willing to commit to the training, the Halo Collar 5 is the one that can do it. It’s sold by Halo.

If you’re new to trackers, start with our complete smart pet care setup guide.