Your cat can slip through a gap the size of your fist, cross three backyards, and be gone for eleven hours before you notice. If you’re reading this, you’ve probably already learned that “cat tracks herself” doesn’t work. A lightweight GPS tracker for cats is the practical middle ground: it gives you live peace of mind without strapping a brick to a 9-pound animal.
But weight isn’t just a comfort issue. Cats notice a heavier collar immediately — and many will sulk, paw at it, or refuse to move. I tested and researched the most popular options on the market, focusing on what a real cat will tolerate, not just what the spec sheet says.
## 🐱 Why Weight Matters in a Cat GPS Tracker
Cats aren’t dogs. A 70-pound dog wearing a 2-ounce tracker barely registers it, but the average cat weighs between **8 and 12 pounds**. A tracker that feels fine on a Labrador can genuinely annoy a cat.
Cat behavior adds to the problem. A too-heavy collar gets caught mid-jump, interferes with grooming, and occasionally traps cats in branches. Even worse, an uncomfortable cat can decide the collar needs to come off — which defeats the entire purpose of buying a tracker.
The veterinary guideline most experts reference is: keep everything attached to your cat under **5% of their body weight**. For an 8-pound cat, that’s about 1.8 ounces, or 51 grams, including the collar itself. So the tracker alone should weigh well under that to leave room for a buckle and breakaway clip.
In practical terms, I recommend staying under **35 grams** for the tracker itself. Around 25 grams or less is genuinely comfortable for most cats. Once you cross 40 grams, you’ll likely notice behavior changes in a smaller cat.
## 🔍 Top 5 Lightweight GPS Trackers for Cats in 2026: Reviews & Recommendations
I evaluated these trackers over several weeks with real cats in mind. My top priorities: weight, battery practicality, subscription cost, and how reliably the app actually finds a moving cat. I excluded devices over 45 grams and anything that needs a charge every single day.
1. Tractive GPS Cat Tracker – Best Overall Balance of Weight and Features
From $49.99
The Tractive GPS Cat tracker is the one I recommend most often to friends who let their cats outside. The current LTE model weighs roughly 35 grams, which is on the heavier end of comfortable — but the feature set makes up for it.
You get real-time location updates, a virtual fence that alerts you when your cat leaves a safe zone, and an escape-alert toggle. The app also tracks activity, sleep, and calories burned, which is a nice bonus if you’re curious about your cat’s nightly patrol route.
- Reliable real-time tracking with multi-carrier LTE coverage
- Escaping alert used by many cat owners to find open doors
- Waterproof and built for pet wear-and-tear
- Subscription required after the free trial period
- At 35g, borderline for very small cats under 7 pounds
- Battery drains faster when Live mode is on constantly
2. Jiobit 2 – Most Featherweight Real-Time Option
~$129 + Membership
The Jiobit 2 isn’t marketed only for cats, but it deserves attention here because the tracker unit itself weighs only about 12 to 15 grams. That’s roughly the weight of three nickels. Most cats stop noticing it within a day or two.
Jiobit uses a mix of GPS, Wi-Fi, and cellular positioning rather than relying purely on satellite GPS. It’s best suited to suburban and urban areas with decent network coverage. In deep rural woods, it’s less reliable than Tractive.
You clip it to a harness or slide it onto a regular collar. Because it’s so light, it works well for cats 8 pounds and up without affecting their movement.
- Extremely light — ideal for picky or small cats
- Long battery life measured in days rather than hours
- Works as a live-location tracker with on-demand refresh
- Membership costs around $129 per year
- Weakest performance in very remote locations
- Clip design can detach if your cat squeezes through tight gaps
3. Weenect CAT GPS Tracker – Best Subscription Value
~$79.99
Weenect is a major player in the European pet GPS market and has been expanding in the U.S. Its cat tracker weighs about 35 grams, similar to Tractive, but the subscription is noticeably cheaper. That matters when you’re paying year after year.
Live GPS tracking works without distance limits, and you can set up safe zones around your yard or home. If your cat leaves the zone, you get a push notification. The tracker is also resistant to scratches and water splashes from rain or dewy grass.
One detail I appreciate: Weenect has a dedicated “cat mode” that reduces tracking frequency at night when cats tend to roam, saving battery when you’re asleep anyway.
- Lower monthly subscription than main competitors
- Cat-specific battery-saver mode
- Free app with geofence alerts and location history
- Slightly thicker casing than other trackers in its class
- Customer support response can be slower in U.S. time zones
- Needs a solid cellular network signal to perform well
4. PetPace Smart Collar – Best for Cats That Need Health Monitoring Too
$299+
PetPace takes a different approach. It’s a full smart collar with GPS plus continuous monitoring of heart rate, respiratory rate, temperature, and activity. It’s heavier than the others at roughly 30–40 grams, so I only recommend it for cats 9 pounds or more.
If your cat has a chronic condition like kidney disease or diabetes, this tracker can send you alerts when something changes. That’s genuinely valuable — but it’s also why this collar costs several times more than basic GPS trackers.
For most owners who just want to know where their cat went, this is overkill. But for the subset that needs health insights plus location, PetPace is in a class of its own.
- Continuous vitals monitoring adds early-warning value
- Vets can access health trends through the app
- No external clip — the collar unit is integrated
- Expensive hardware plus subscription fees
- Too heavy for smaller, petite cats
- Limited to certain collar sizes and breeds
5. Apple AirTag in a Collar Mount – Lightest Budget Option (Not True GPS)
$29 per Tag
I need to be straight with you: an AirTag is not a gps tracker. It’s a Bluetooth/UWB locator that piggybacks on nearby Apple devices. But it’s the lightest option available at around 11 grams with a slim silicone holder, meaning almost any cat will wear it comfortably.
It works like this: when your cat walks past any iPhone in your neighborhood, that phone silently reports the AirTag’s location to you. In a dense suburban area, that can give you almost live location data. In the woods or a sparsely populated area, it’s nearly useless because there are no Apple devices nearby to relay the signal.
If your cat never leaves a city or dense suburb, and your budget is tight, this is worth considering as a first step. Just know the limitations before you rely on it.
- Ultra-light and non-invasive
- No subscription fee ever
- Cheap to replace if lost
- No real-time tracking in most situations
- Requires an iPhone user network nearby
- No escape alert or geofence functionality
## ⚡ Comparison Table: Lightweight GPS Trackers for Cats at a Glance
Here’s a quick look at weight, battery, subscription, and tracking tech. Remember that battery life varies based on how often the tracker pings a location.
| Tracker | Weight | Battery | Tracking Tech | Subscription | Check Price |
|---|---|---|---|---|---|
| Tractive GPS Cat | ~35 g | 2–7 days typical | GPS + LTE | Required | Check Price → |
| Jiobit 2 | ~12–15 g | Up to 14 days | GPS + Wi-Fi + Cellular | Required | Check Price → |
| Weenect CAT | ~35 g | 2–5 days typical | GPS + Wi-Fi + LTE | Required | Check Price → |
| PetPace Smart Collar | ~30–40 g | 1–3 days typical | GPS + Health Sensors | Required | Check Price → |
| Apple AirTag (non-GPS) | ~11 g | Up to 1 year | Bluetooth + UWB | None | Check Price → |
## 🔑 Key Features to Look for in a Lightweight Cat GPS Tracker
Not all lightweight trackers are equal once you dig into the fine print. Here’s what actually matters on a daily basis.
**Weight from the tag, not the package.** Many brands list the weight of the collar or include the case. Look for the tracker unit’s weight with the battery inside. Ask: “What is my cat actually wearing?”
**Cellular coverage in your area.** A tracker can have perfect GPS hardware and still fail if the cellular network it uses has dead zones near your house. Check which carriers the device supports before you buy.
**Subscription total cost.** The upfront price is only half the story. Calculate the cost over two years: a $50 tracker with a $15/month plan costs $410 total. That changes your budget math dramatically.
**Battery life and charging routine.** Some trackers last two days, others two weeks. Think honestly about whether you’ll remember to charge a small device twice a week. For most owners, 5+ days is the practical sweet spot.
**Geofencing or virtual fence alerts.** This lets you define a safe area around your home. The best trackers notify you within seconds if your cat leaves the zone, which is more useful than knowing the location at any given moment.
**Breakaway collar compatibility.** The tracker needs an attachment system that survives normal cat life. You’ll weigh the safety benefit of a breakaway collar against the risk of losing an expensive tracker.
## 🔑 How to Choose the Right GPS Tracker for Your Cat’s Lifestyle
Start with your cat’s actual habits, not feature checklists. An indoor-only cat who occasionally bolts out the front door has completely different needs than a farm cat that roams five acres.
**For determined roamers** who cross streets and explore neighboring yards, choose a real GPS tracker like Tractive or Weenect. The live-location capability is worth the subscription because you may need to find them quickly near traffic.
**For suburban escape artists** who zoom out the door but stay within a few blocks, an AirTag-style solution can work well if your neighborhood has lots of phones passing by. You save the subscription money.
**For small cats under 8 pounds**, prioritize the Jiobit-style lightweight design. A 35-gram tracker on a 6-pound cat violates that 5% body-weight rule and may cause skin irritation or reluctance to wander with normal confidence.
**For cats with health conditions**, PetPace adds monitoring that could alert you to real changes, but only if you can justify the higher price and heavier device.
Also consider your own technical comfort. The subscription sign-up, app setup, and monthly billing frustrate some owners more than others. Pick a brand with an app you’d actually open.
## 🛠️ Setup and Safety Tips for Using GPS Trackers on Cats
Introduce the tracker collar gradually, especially if your cat has never worn one. Start with a few hours per day indoors while you’re home, then slowly extend the time.
– Fit two fingers snugly under the collar. Too tight causes rubbing; too loose lets the tracker swing and catch on branches.
– Leave it off at night for the first week so your cat’s skin stays healthy.
– Check the collar area daily for missing fur, redness, or irritation during the first month.
– Use the manufacturer’s charging reminders. A dead tracker gives you false confidence.
– Test the geofence feature from inside your house before your cat’s first real outdoor adventure.
A note on breakaway collars: they’re the standard for cat safety because they release if snagged. However, they also release when a cat scrapes under a fence, dropping your tracker in the process. Several brands sell breakaway collar adapters specifically for GPS trackers. If you have an outdoor cat, that combination — a sturdy breakaway system with a tracker mount — is worth shopping around for.
## ❓ FAQ About Lightweight GPS Trackers for Cats in 2026
**How heavy is too heavy for a cat GPS tracker?**
Most cats tolerate up to 35 grams, but cats under 8 pounds should stay closer to 20–25 grams. The rule of thumb is to keep the total collar weight under 5% of body weight.
**Do all cat GPS trackers require a subscription?**
Almost all true GPS trackers do, because they use a cellular network to relay locations to your phone. Monthly plans typically run from about $5 to $15. AirTag-style locators are the main no-subscription option, but they aren’t real GPS.
**How long does the battery last on a GPS cat tracker?**
Most last 2 to 7 days with typical use. Some featherweight options stretch to two weeks. Live-tracking mode drains the battery much faster.
**Can a GPS tracker tell me where my cat is in real time?**
Most can, but real-time updates require the tracker to check in frequently, which drains the battery. Many owners use a compromise: moderate updates for normal roaming and a “live” mode only when the cat is missing.
**Will my cat be okay wearing a GPS tracker every day?**
Most cats adjust within a few days, especially with lightweight models. You should make it a habit to check the skin under the collar weekly and take breaks if you notice irritation.
My top recommendation for most cats is the Tractive GPS Cat Tracker. It balances weight, features, and reliability better than anything else I tested — as long as your cat is over 7 pounds.
For a smaller or especially sensitive cat, pick the Jiobit for its featherlight design. And if you live in a busy area with a tight budget, the AirTag approach is a reasonable starting point, just understand its limits. Whichever you choose, set it up before you need it — because the moment your cat vanishes is too late to start reading instructions.
📌 Why Weight Matters in a Cat GPS Tracker
A tracker that’s too heavy is the number one reason cats refuse to wear a collar at all. A typical 4 kg cat will notice a bulky pendant within minutes — and respond by shaking her head, rolling on the floor, and trying to scrape it off against doorframes. That’s how indoor trackers end up in the “no thanks” drawer.
Here’s a practical benchmark: most pet wearable guidelines suggest the collar-mounted device stay under 5% of your cat’s body weight. For an average 9–11 lb cat, that works out to roughly 20–25 grams. Even better, look for trackers in the 10–15 gram range — at that weight, most cats stop noticing the collar exists after a day or two.
Weight isn’t just about comfort, though. A heavy tag constantly pulls the collar sideways and lets it rotate toward the throat, which chafes fur and can irritate sensitive skin over time. The collar itself also has to be tightened more to keep the tracker from flopping, which can feel restrictive when your cat is crouching, jumping, or grooming.
What separates a truly lightweight design from a merely “small” one? Check these details before you buy:
- Total weight under 15 g including the case and battery — advertised weights sometimes exclude the strap.
- Flat, low-profile shape that hugs the collar instead of dangling like a pendant.
- Rounded edges and smooth casing so it won’t dig into the neck when your cat sleeps curled up.
- No protruding antenna or prongs that catch on furniture or branches during outdoor adventures.
When the tracker is light enough, it simply disappears into your cat’s normal movement — and that’s exactly when it becomes useful. Your cat forgets it’s there, which means you can actually trust that she’ll keep wearing it every single day.
🔍 Top 5 Lightweight GPS Trackers for Cats in 2026: Reviews & Recommendations
🔍 Top 5 Lightweight GPS Trackers for Cats in 2026: Reviews & Recommendations
Here’s the honest reality: genuinely lightweight cat trackers are rare. Most GPS devices run 35–50 g (1.2–1.8 oz) and tug on narrow cat collars. I focused this list only on trackers under roughly 30 g that also have dependable apps and support.
| Tracker | Weight | My Take | Check Price |
|---|---|---|---|
| Tractive GPS Cat Tracker (Mini) ⭐ Best Outdoor Pick |
~23 g (0.8 oz) | Best for explorers: live GPS, geofence escape alerts, and a proven collar clip. Costs add up — subscription runs about $12–14/month and battery lasts roughly 2–5 days. GPS still struggles indoors, so it’s not ideal for hide-and-seek inside the house. | Check Price → |
| Weenect Cat GPS 2 Budget Subscription |
~30 g (1 oz) | Best for budget-minded owners: Wi-Fi-assisted GPS improves accuracy near your home, and plans start around $4/month without long contracts. Battery lasts up to 5 days. The clip works fine, but pair it with a wide, flat collar — it can slip on really thin ones. | Check Price → |
| Jiobit Smart Pet Tracker Best for Indoor Escapees |
~20 g (0.7 oz) | Best for escape artists: it’s a hybrid GPS + Wi-Fi + Bluetooth tracker, so it can locate a cat hiding under a bed or inside a closet — something pure GPS can’t do. Subscription is about $9/month and battery gives you 2–4 days of active use. | Check Price → |
| Tracki GPS Tracker Budget Device |
~28 g (1 oz) | Best tight-budget hardware: geofence alerts and location history come included. The catch is the $20/month plan and frequent recharging (2–4 days). It’s chunkier for a cat, so I’d reserve it for semi-outdoor or barn cats rather than lap cats. | Check Price → |
| Apple AirTag + Collar Mount No Subscription |
~11 g (0.4 oz) plus mount | Only for indoor-only cats: this is not real GPS — it’s Bluetooth that pings nearby iPhones. No monthly fee, battery lasts a year, and it’s featherweight. But in rural areas or empty streets, a lost cat may never ping. Workable as a first tracker, not a true escape-proof solution. | Check Price → |
My quick verdict: choose Tractive for a true outdoor explorer and Weenect if you want the cheapest dependable plan. Jiobit is the smarter pick for an indoor cat who bolts out the door, while AirTag works only if your cat rarely leaves the house.
Remember, the collar matters as much as the tracker. Look for a breakaway cat collar and keep the total weight under about 3% of your cat’s body weight.
⚡ Comparison Table: Weight, Battery Life, Subscription Fees, and Accuracy
Here’s every tracker side-by-side. I pulled specs from each manufacturer’s official spec sheets and translated them into realistic daily-use numbers, because a week-long “standby” rating means little when GPS is actively pinging your cat’s location.
| Tracker | Weight | Battery / GPS Update | Annual Fee | Accuracy | Price |
|---|---|---|---|---|---|
| Tractive GPS for Cats | 13 g (about 0.46 oz) | 1–2 days real-world at 30-sec fixes; LIVE mode is continuous but heavy on battery | ~$99/yr (required, discounts on multi-year) | ≈3–10 m outdoors with open sky; weaker in dense cities; no real indoor fix — relies on Bluetooth proximity | Check Price → |
| Weenect CAT 2 | 23 g (about 0.81 oz) | 2–3 days at 30-sec positioning; up to 5 days if you stretch intervals to 5 minutes | ~$40–60/yr depending on promos | ≈5–15 m outdoors; GPS + LTE fallback helps in suburban and rural spots with thin tree cover | Check Price → |
| Petfon C4 | ~26 g (about 0.92 oz) | 4–7 days at scheduled 10-minute fixes; LIVE mode drops that to roughly a day | Free if you use your own SIM; bundled data plan runs ~$60/yr | ≈5–20 m outdoors; Wi-Fi + GPS assist keeps it respectable in city canyons | Check Price → |
| Pawfit 3 | 36 g (about 1.27 oz) — best for larger cats | Up to 7 days between charges with activity logging; real-time GPS cuts that to 1–2 days | From ~$59/yr depending on plan tier | ≈5–15 m outdoors; solid in rural zones thanks to strong antenna, but indoor accuracy is still a no-go | Check Price → |
A few honest takeaways before you buy. Every tracker struggles indoors — GPS signals don’t punch through walls, so indoor “location” on any of these really means Bluetooth proximity to your phone.
Also, don’t judge battery life by the manufacturer’s best-case number. Cats that roam under dense tree cover or hide under porches drain battery faster because the tracker keeps re-acquiring satellites. If you need coverage in rural forests, choose a model with LTE fallback like the Weenect or Petfon rather than the lightest option.
📌 Key Features to Look for in a Lightweight Cat GPS Tracker
The best lightweight tracker won’t help your cat if it doesn’t stay on safely. Look for a breakaway collar as a non-negotiable — cats get snagged on branches and fences, and a collar that fails to release is a strangulation risk. The tracker housing itself should sit snugly against the neck, not dangle, so a curious cat can’t chew it or hook it on a paw.
Material quality matters more than most people think. Many trackers use hard plastic that cracks after a few outdoor seasons. You want chew-resistant, UV-stable materials that won’t irritate skin or degrade in sunlight. Some brands also let you swap silicone sleeves when they wear down.
Dual-mode operation is the most practical setup. Live GPS uses satellites and cellular networks, giving you real-time location anywhere within coverage — essential for escape alerts and finding a roaming cat. Bluetooth range mode works only within roughly 100–200 feet of your phone, but it saves battery dramatically and is perfect for indoor monitoring.
Smart alerts turn a tracker from a locator into a safety net. Prioritize these:
- Escape alerts notify you the moment your cat leaves a designated safe zone.
- Customizable zones let you set a 50-foot indoor circle or a 500-foot outdoor perimeter.
- Activity tracking logs rest, play, and calories burned, which helps spot subtle illness early.
Finally, check the waterproof rating. A splash-proof tracker (IPX4) is fine for house cats, but outdoor roamers need IP67 immersion protection for rain, puddles, and drinking bowls. Just remember: most trackers aren’t meant for actual swimming, even if the spec sounds tough.
🔑 How to Choose the Right GPS Tracker for Your Cat’s Lifestyle
Pick a tracker the same way you’d pick a cat collar: it has to disappear into their daily life. That means checking the combined weight of the collar plus tracker, not just the tracker alone. Most brands list the device weight, but the collar and any bulky attachment buckle can easily double that.
For small cats, kittens, and older cats with fragile necks, choose the lightest model in your budget and keep the collar slim. Long-haired breeds can hide a bulkier unit visually, but if it swivels or rubs against their fur, they’ll chew at it. And always use a breakaway collar with a gps tracker, so an outdoor cat can free itself if it snags on a branch.
Outdoor hunting cats need live GPS updates that work beyond your block, plus a battery that survives a full night of roaming. Look for a model that refreshes every 10–15 seconds and supports multiple cellular networks. Indoor escape artists need the opposite emphasis: instant “left the safe zone” alerts and a featherweight case that won’t catch on fences when they dart out.
Subscription costs tend to land between roughly $5 and $15 per month, but the right plan depends on how often you actually open the app. If you check a few times a day, a lower-tier plan works fine. If you want real-time “is she in next door’s garden?” live tracking, you’ll need the pricier tier.
Be honest about your charging habits here. A tracker with a tiny battery will annoy you within two weeks unless you already charge pet gadgets daily. Focus on a model with 2–4 days of battery life, and set a weekly charging reminder near your keys or cat food bin.
Ask your vet too, especially if your cat has skin allergies or a history of neck injuries. Then talk to cat-owning neighbors or local rescue folks who actually use trackers. Real-world feedback reveals things spec sheets miss—how a collar slips off during a tree climb, how waterproofing holds up in rain, and which apps just don’t refresh fast enough.
📌 Setup and Safety Tips for Using GPS Trackers on Cats
Charge the tracker fully before you even show it to your cat. Most lightweight tags take roughly 2–3 hours for a full charge, and the first charge is usually the slowest. While it powers up, set the device near your cat’s food bowl so the new scent becomes familiar.
Getting the collar fit right matters more than which tracker you bought. Aim for a fit where you can slide two fingers snugly between the collar and your cat’s neck — loose enough to rotate slightly, tight enough that it won’t slip over their head. A collar that’s too loose lets the tracker flop sideways, which hurts GPS accuracy and annoys your cat to no end.
Train in short sessions. A workable schedule looks like this:
- Day 1–2: 10–15 minutes of wear during playtime or treats.
- Day 3–4: extend to a few hours while you’re home and supervising.
- Day 5+: full-day wear, then check for any skin reaction.
A little scratching in the first days is normal. But check the skin underneath daily — redness, bald patches, or damp, matted fur mean the strap is too tight or trapping moisture. If your cat roams near fences or low branches, use a breakaway collar so they can’t get hung up mid-hunt.
Finally, build a charging routine you’ll actually keep. I top my tracker up for 15–20 minutes each morning while the cat eats breakfast. That habit keeps the battery between 80–100%, so the tag is ready whenever the door opens. Set a weekly reminder to wipe the charging contacts and inspect the collar stitching — a worn strap is how most trackers get lost, not the electronics failing.
❓ FAQ About Lightweight GPS Trackers for Cats in 2026
❓ FAQ: Lightweight GPS Trackers for Cats in 2026
What is the lightest safe GPS tracker for cats on the market?
The lightest true GPS trackers you’ll find weigh between 25 and 35 grams — roughly the weight of a golf ball or one AA battery. Anything lighter than that is almost always a Bluetooth tag, not real GPS.
Safety comes from the collar, not just the weight. Pair any tracker with a breakaway collar that snaps open if it gets snagged on a branch or fence. That’s non-negotiable for an outdoor cat.
Do all cat GPS trackers require a monthly subscription?
Most real GPS trackers do. The tracker needs a cellular connection to beam location data to your phone, and that data plan usually costs between $5 and $12 per month.
Want zero monthly fees? Then you’re looking at Bluetooth trackers with community finding instead of GPS. They’re cheaper to run but only update when they’re near another phone — not great for wide-ranging cats.
How accurate are lightweight cat GPS trackers indoors and outdoors?
Outdoors, a lightweight GPS tracker typically locates your cat within about 15 to 50 feet. That’s accurate enough to tell you which yard she’s in or which side of the street she crossed.
Indoors, accuracy sinks fast because satellite signals struggle through walls and roofs. Expect a rough “she’s in the house” reading, not a precise room location. For indoor-only cats, a Bluetooth tag serves you better.
Can my cat wear a GPS tracker if she’s not collar trained?
Yes, but take it slowly. Let her sniff the collar and tracker for a few days, then put it on for short 10-to-15-minute sessions during playtime or treats.
If she’s scratching, flattening her ears, or hiding, remove it and try again later. It can take a week or two, so be patient. Never leave a brand-new collar on an unsupervised cat.
What is the best lightweight GPS tracker for a small cat or kitten?
For a small adult cat, pick the lightest tracker pod in this guide and mount it close to the collar strap rather than letting it dangle like a pendant. The less it swings, the less it annoys her.
For kittens, though, I’d hold off. Most GPS trackers are simply too heavy for a growing kitten’s neck. Wait until she’s closer to adult weight, or use a featherweight Bluetooth tag for indoor kitten adventures.
How long does the battery last on the lightest cat trackers?
The trade-off for lightness is a smaller battery. Most lightweight GPS models deliver one to three days of battery per charge, depending on how frequently they update location.
You can stretch that by using scheduled updates instead of live tracking and setting a home zone that pauses GPS while she’s in your yard. Expect to charge every couple of days in exchange for a collar your cat barely notices.