A $69 GPS tracker that needs a plan for three years costs more than it looks — and a $189 collar ends up costing more than double that tracker over the same three years. Total Pet Cost adds up the device, the subscription, the plan renewals, and the consumables — then ranks by the number you'd actually pay.
| GPS dog tracker | Sticker price | Subscription over 3 years | True 3-year cost | |
|---|---|---|---|---|
| Tractive DOG 6Clip-on tracker, plan from ~$5/mo billed annually | $69 | ~$180 | ~$249 | Lowest 3-year cost |
| Fi Series 3+Collar + membership; first year included, then $189/yr | $189 | $378 | $567 | +$318 vs Tractive |
| Halo Collar 5GPS fence + training collar; plan sold separately | $524 | Plan extra | $524 + plan | Highest before the plan |
Ranked by sticker price, the Fi looks mid-pack. Ranked by what leaves your bank account over three years, it costs more than double the Tractive. Read the full comparison →
Start with the guides
Every guide on this site is research-based — built from manufacturer specifications, published subscription terms, and owner reporting. We say plainly what that means on our How We Compare page.
The cheapest tracker to buy is not the cheapest tracker to own. The full subscription math on the three biggest names in GPS dog tracking.
Read the comparison →
For a 7-pound dog, grams matter more than features. Weight-first picks, plus the honest cutoffs where a manufacturer says "not for your dog."
Read the guide →
The Litter-Robot 4, measured in days between drawer emptying per cat — plus a safety warning about cheap automatic boxes we will never recommend.
Read the guide →Two clusters, one rule
Every cellular tracker is a phone plan for your dog. Device prices range from $69 to $524 — but the three-year totals reorder the field completely. We track plan prices, renewal traps (first year "included"), and which features actually require the paid tier.
Start with Fi vs Tractive vs Halo →No subscription here — the running costs are liners, filters, and litter, and the real question is capacity: how many days of waste per cat before you're emptying a drawer anyway. Plus the safety screen every automatic box has to pass before we'll list it.
Start with multi-cat homes →How this site works
Every comparison table sorts by multi-year cost of ownership — device, subscription, renewals, and consumables — with the date we last checked each price printed next to it.
We don't claim hands-on testing we haven't done. Comparisons are built from manufacturer specs, published pricing and plan terms, and owner reporting — and labeled that way on every page.
Some links on this site earn us a commission at no extra cost to you. It never changes a ranking — and the full arrangement is on our disclosure page.
The Total Cost Calculator
Pick a product to load its checked prices, then adjust anything — device price, subscription, how long you'll keep it, even monthly consumables like litter-box liners and filters. The total updates as you type.
Start from a preset, or choose Custom and enter any product's numbers.
Fi Series 3+ over 3 years
The sticker price is a down payment, not a price. For subscription pet tech, the honest comparison unit is cost per year of ownership. A tracker you keep for three years at $5/month costs $180 in plan fees alone — more than many devices.
"First year included" is a renewal appointment. Fi's $189 collar bundles year one of membership; the $189 renewal in year two is where the real price lives. Our calculator models that explicitly — uncheck the box to model plans that bill from day one.
Years change the winner. Drag the ownership slider: devices with cheap plans win over long horizons, while "hardware included" bundles like the Fi Mini ($129/year, checked Oct 2026) can beat a cheap device plus plan sooner than you'd expect. Every preset's underlying figures are the checked prices from our guides, and the methodology page explains where they come from.
GPS Dog Trackers · Anchor Comparison
Three trackers, three pricing philosophies. Fi bundles a year and bills like a gym membership, Tractive sells a cheap tracker with a modest plan, and Halo charges fence-system money before the plan even starts. Over three years, the ranking flips.
| Device | Plan | 3-year total | |
|---|---|---|---|
| Tractive DOG 6Clip-on, fits dogs 8.8 lb+ | $69 | from ~$5/mo, billed annually | ~$249 |
| Fi Series 3+Collar with built-in tracker + membership | $189 (incl. year 1) | $189/yr from year 2 | $567 |
| Halo Collar 5GPS fence + training collar | $524 | Required, priced separately | $524 + plan |
All figures US list or street prices as published by the manufacturers, checked Oct 2026. Tractive's total assumes its lowest annual-billing plan tier; Halo's plan price varies by tier, so we show the device separately rather than guess — run your tier through the calculator.
On pure cost, Tractive wins by $318 over three years. Fi is the better-featured, longer-battery collar — and you pay roughly $106 a year extra for that. Halo isn't really in this comparison at all: it's a containment and training system that happens to track, priced accordingly before its plan adds a dollar.
Fi sells the Series 3+ as a collar with the tracker built in, at $189 including the first year of membership (checked Oct 2026). Membership is not optional — without it, the collar doesn't track — and it renews at $189/year. That's the whole story of Fi's pricing: a reasonable-looking device price, then a premium-car price of a plan, every year, forever.
What the money buys, per Fi's published specs: escape alerts, activity and sleep tracking, and the longest battery claims in the category (Fi claims up to three months per charge in low-activity use; owner reporting puts real-world life well below that with frequent live tracking). If your dog is an escape artist and you'll use live tracking daily, the battery advantage is real — but know that you're signing a $189/year contract to get it.
Tractive's model is the opposite: a $69 clip-on tracker (MSRP, checked Oct 2026) and a plan that starts at roughly $5/month on annual billing. Three years all-in: about $249 — less than half of Fi's total, and the gap widens every year you keep it.
The DOG 6 weighs 39 g (about 1.4 oz) and Tractive rates it for dogs 4 kg / 8.8 lb and up. Live mode updates every 2–3 seconds — the fastest refresh we found in published specs — though it drains the battery in hours rather than the up-to-two-weeks Tractive quotes with power-saving zones enabled. It clips to an existing collar, which matters more than it sounds: no fit lottery, and it moves between collars and harnesses.
Halo prices the Collar 5 at $524 for the device, before its plan (checked Oct 2026) — more than Fi's entire three-year cost, spent on day one. That's because Halo isn't really selling tracking. It's selling a wireless fence and training collar: you draw boundaries in the app, and the collar uses sound, vibration, and (if you enable it) static feedback to keep the dog inside them, with GPS tracking alongside.
If you have acreage, no physical fence, and a dog who bolts, that system can be worth fence money — a physical fence costs far more. If you just want to find a lost dog, you're paying for a training system you'll never use, plus a plan on top. Compare it against fences, not trackers.
Run your own horizon — two years, five years, a different plan tier — in the total-cost calculator. The longer you keep a tracker, the more the plan price, not the device price, decides the winner.
GPS Dog Trackers · Fit First
For a 40-pound dog, a tracker is a feature list. For a 7-pound dog, it's a weight problem: every gram rides on a small neck, all day. So this guide sorts by weight and manufacturer minimums first — features and price come after a tracker has earned the right to be on your dog at all.
| Tracker | Weight | Manufacturer's fit guidance | 3-year cost |
|---|---|---|---|
| Fi MiniClip-on — attaches to your existing collar or harness | 0.56 oz (16 g) | Built specifically for small dogs — Fi markets it for dogs under 10 lb, and for cats | $387 $129/yr, hardware included |
| Tractive DOG 6Clip-on tracker | 1.4 oz (39 g) | Rated for dogs 4 kg / 8.8 lb and up — below that, Tractive says no | ~$249 $69 + plan from ~$5/mo |
| Tractive DOG 6 XLThe bigger-battery sibling — listed here as a warning | 4.1 oz (115 g) | Made for dogs 22 kg / 48 lb and up. On a small dog this is not a tracker, it's luggage | — |
Weights and minimums are the manufacturers' published figures, checked Oct 2026. Costs use each maker's published US pricing from the same check; the Fi Mini's $129/year bundles the hardware and membership together.
Under 10 lb, the Fi Mini is the purpose-built answer — at 0.56 oz it's less than half the Tractive's weight and clips onto the collar your dog already wears. Between roughly 9 and 15 lb, the Tractive DOG 6 becomes the better buy: slightly heavier, far cheaper over three years. Below about 5 lb, be honest with yourself — see the cutoffs below.
Most "best for small dogs" lists quietly include trackers the manufacturer itself wouldn't sell you for your dog. We'd rather draw the lines where the manufacturers draw them:
Fi built the Mini specifically for the dogs its flagship collar doesn't suit: 0.56 oz, clip-on mounts for collars or harnesses from 3/8″ to 1″, escape alerts and live tracking on the same Verizon LTE-M network as the Series 3+, and a manufacturer-quoted battery life of up to three weeks. Pricing is a flat $129/year with the hardware included (checked Oct 2026) — $387 over three years, no device bill at all.
That pricing cuts both ways: there's no cheap way in, and if you cancel, you own nothing — the hardware was never really yours to keep. But for a dog under 10 lb, it's the only tracker in this guide designed from the start for the job.
Plenty of "small dogs" — a sturdy Westie, a big Miniature Schnauzer — clear Tractive's 8.8 lb floor comfortably, and for them the DOG 6 is the value pick from our main comparison: $69 plus a plan from ~$5/month, about $249 over three years. At 39 g it's 2.5× the Fi Mini's weight, which a 12 lb dog carries without noticing and a 6 lb dog shouldn't be asked to. The number on the scale — your dog's, honestly weighed — decides which of these two pages' picks is yours.
Full-size GPS collars on toy breeds. Integrated collar-trackers sized for medium dogs put the heaviest hardware on the smallest necks, and a collar that can't cinch small enough is a slip-out risk on top of a weight problem. XL/extended-battery trackers trade exactly the wrong way for small dogs — the battery is the weight. And no-name clip-on "GPS" tags sold on marketplaces frequently turn out to be Bluetooth-only when you read the fine print; if a listing doesn't name its cellular network, it doesn't have one.
Self-Cleaning Litter Boxes · Multi-Cat Homes
In a multi-cat home, an automatic litter box doesn't eliminate the chore — it reschedules it. The metric that decides whether it's worth $699 is waste-drawer days: how long the box holds what your cats produce before you're emptying it anyway. Measured that way, one box earns its price, and a whole category of cheap alternatives fails a more basic test: safety.
Whisker's rotating-globe automatic box, rated by the manufacturer for up to 4 cats weighing 3–25 lb each. The waste drawer holds roughly 8 days of waste for one cat by Whisker's positioning — which is the number every multi-cat calculation below starts from. No subscription; running costs are liners, filters, and the clumping litter you'd buy anyway.
Manufacturers quote drawer capacity for one cat because it produces the biggest number. Divide it by your actual cat count and the convenience story gets honest fast:
| Cats in the home | Drawer days (est.) | What that means in practice |
|---|---|---|
| 1 cat | ~8 days | Empty weekly-ish; the full convenience promise |
| 2 cats | ~4 days | Retailer guidance for the LR4 matches this: empty about twice a week |
| 3 cats | ~2–3 days | Still no daily scooping — but this is a chore again, just a smaller one |
| 4 cats | ~2 days | At Whisker's max rating. Many 4-cat homes will want a second box — automatic or not |
Estimates derived from Whisker's published single-cat drawer figure (about 8 days) divided by cat count, checked Oct 2026; your cats' size, diet, and litter will move these numbers. The point isn't false precision — it's that "holds two weeks!" marketing assumes a household most multi-cat readers don't have.
The 3-year math: $699 once, plus liners, carbon filters, and litter — the same litter a $25 box burns through. There's no plan and no app paywall, which is why this category's total cost behaves so differently from GPS trackers. Model your own consumables in the calculator (the Litter-Robot 4 preset is built in).
One update to know about: Whisker has since released a Litter-Robot 5 at a $799 list price with a larger multi-cat rating. This guide covers the 4 — it's the established, widely owned model — but if you're buying new, the $100 step-up is worth a look once we've checked its figures the same way.
We will never recommend the cheap, no-name automatic litter boxes sold under rotating brand names on big marketplaces — and you shouldn't buy one. Owner reports and news coverage in recent years have described cats trapped and killed by low-cost automatic boxes, particularly designs where a door or flap closes over the entry during the cleaning cycle, and units whose low price is possible because the sensor system is a single cheap switch — or effectively absent.
An automatic box runs a motor, on a timer, in a box your cat sits inside. Before any model appears on this site, it has to pass this screen:
If a listing can't tell you exactly how the box knows your cat is inside, that's your answer. This is the one category on this site where "cheapest" can be dangerous, and our rankings treat it that way.
The other honest cost of a $699 litter box is the chance your cats won't use it. Whisker's own guidance is that many cats take to the Litter-Robot within a few days to a week — and "many" is doing real work in that sentence. Nervous cats, older cats, and cats who've never used a covered box are the usual holdouts.
The acclimation routine that owner reporting supports: set the new box up next to the old one, powered off, let curiosity do the work, move a little used litter over for the familiar smell, run the first cycles manually while the cats are elsewhere, and only retire the old box once the new one is in regular use. Rushing it — swapping boxes overnight — is how a $699 box becomes garage furniture.
This is also why where you buy matters: bought direct from Whisker, the Litter-Robot 4 comes with a 90-day in-home trial (terms checked Oct 2026) — long enough for a genuine acclimation attempt, with a return path if your cats vote no. Retail return windows are typically much shorter than a fair trial. On a product whose biggest risk is refusal, the trial is part of the product.
If you have one cat and thirty seconds a day, a standard box and a scoop beat $699 on any honest ledger — the automatic premium buys back a chore that barely exists. And in homes with four or more cats, run the drawer-days math above before assuming one automatic box replaces the multi-box setup your cats may still need; feline peace treaties are not a feature we can spec.
Methodology
The short version: we do the arithmetic other sites skip, from sources anyone can check — and we don't pretend to have done testing we haven't done.
We do not hands-on test the products on Total Pet Cost. No one here has put these trackers on their own dog or these litter boxes in their own home for this site. Our comparisons are research-based, built from the three sources below. If that ever changes for a product, the page will say so, in those words, at the top.
Every comparison leads with cost of ownership over a stated period — three years by default — summing the device price, every subscription payment in that window (modeling bundled first years honestly), and category consumables. Each price carries the month and year we checked it, printed on the page. Prices and plan terms change constantly in this category; a checked date is our promise about when the number was true, and we re-check on a rolling schedule after launch.
On Total Pet Cost, some outbound links are affiliate links: if you buy through one, the retailer pays us a commission at no additional cost to you. That's the whole business model, and the details live on our Affiliate Disclosure page. Our affiliate accounts are active and the buy buttons on this site are live affiliate links — we may earn a commission when you buy through them.
Legal
Plain language, up front — the way the FTC expects, and the way we'd want it as readers.
Total Pet Cost is reader-supported. When you buy a product through a link on this site, we may earn a commission from the retailer or manufacturer. The price you pay is the same whether you use our link or go direct — the commission comes out of the retailer's margin, not your pocket. As an Amazon Associate, Total Pet Cost earns from qualifying purchases.
Status as of October 2026: Total Pet Cost participates in the Amazon Associates Program, and the buy buttons in our guides are live Amazon affiliate links — when you buy through one, we may earn a commission at no additional cost to you. As an Amazon Associate, Total Pet Cost earns from qualifying purchases.
Total Pet Cost may also participate in manufacturer direct affiliate programs relevant to the products we cover. Individual guides only ever link to retailers for the products discussed on that page.
What commissions never do: they do not buy placement, ordering, or a positive verdict. Rankings on this site are determined by our published methodology — total cost of ownership, manufacturer specifications, and owner reporting. Products are sometimes excluded entirely (see the safety screen in our litter-box guide) regardless of any commission they might pay.
Prices: every price on this site carries the month and year it was checked. Retailers change prices and plan terms without notice; the price at the retailer at the moment you buy is the one that applies, and it may differ from the figure we checked.
Trademarks: product and brand names on this site — including Fi, Tractive, Halo, Litter-Robot, and Whisker — belong to their respective owners. Their use here is for identification in editorial comparisons and implies no endorsement of this site by any manufacturer.
This disclosure is provided in accordance with the U.S. Federal Trade Commission's guidelines on endorsements and testimonials (16 CFR Part 255).
About
Pet tech got good. Pet tech pricing got sneaky. This site exists to do the second-grade arithmetic the product pages hope you'll skip.
Modern pet tech is genuinely useful — a GPS tracker can bring a lost dog home, and an automatic litter box can give a multi-cat household its evenings back. But the category has quietly become a subscription business. Trackers need plans. Plans renew. "First year included" means the real price starts in month thirteen. A $69 device and a $189 device can swap places entirely once you price three honest years of owning each.
Total Pet Cost ranks pet tech by what it costs to own — device, subscription, renewals, and consumables, summed over a stated period, with the date we checked every price printed next to it. We launched with the two categories where the gap between sticker price and true cost is widest: GPS dog trackers and self-cleaning litter boxes.
We're equally direct about our limits. This is a research-based publication: comparisons are built from manufacturer specifications, published pricing and plan terms, and owner reporting — not hands-on testing, and we say so on every page. Our full methodology is on the How We Compare page, and how the site earns money is on the Affiliate Disclosure page.
Total Pet Cost is a small, independent site. It is not affiliated with, or endorsed by, any manufacturer whose products it covers.