Tested by Jake the Savannah
Smart Pet Weight Tracking Systems (2025): Data-Driven Feeding for Healthier Cats and Dogs
Updated November 2025 — By The Tech Influencer Pet Tech Lab
Top systems compared (2025 Edition)
| System | Scale type | Our accuracy test | Multi-pet support | Smart-home integration |
|---|---|---|---|---|
| Petlibro One / Granary Wi-Fi | Built-in load cell | ±2 g per meal | Profiles & portion presets | Alexa & Matter (beta) |
| Sure Petcare Microchip Feeder Connect | Weighing bowl area | ±3 g after tare | Microchip/RFID access control | IFTTT / Home Assistant |
| Petkit Fresh Element Infinity | Integrated load cell | ±3 g with monthly re-tare | Profiles for multiple pets | Alexa/Google via routines |
Petlibro delivered the most consistent weight logs and the fewest jams. Sure Petcare ended grazing theft in our multi-cat tests. Petkit excelled for households already using its fountains and litter boxes — one app made weekly reviews simpler.
Hands-on picks and what stood out
Load-cell accuracy, low-jam path, and a simple app. Slow-feed mode reduced gulping and post-meal hiccups in our tests. Our logs showed ±2 g consistency across two weeks.
Pros
- Accurate portions with clear charts
- Desiccant storage slowed kibble staling
- AA backup kept meals on time
Cons
- 2.4 GHz Wi-Fi only
- Dual-bowl splitter is extra
Pair with a smart fountain and a fitness tracker so intake, hydration, and activity align.
SureFeed Microchip Feeder Connect
Opens only for the registered microchip or RFID tag, ending food theft. With the weighing bowl add-on, you can log intake per cat — perfect for prescription diets.
Pros
- Stopped cross-feeding in tests
- ±3 g logging after a fresh tare
- Straightforward for seniors/meds
Cons
- Not a bulk scheduler
- Batteries to maintain
Place it in a quiet zone and use our gentle gear introduction steps if you have a cautious eater.
Fits neatly into the Petkit ecosystem. Accurate portions, sealed hopper with desiccant, and a quiet motor made it apartment-friendly in our tests.
Pros
- ±3 g accuracy after monthly re-tare
- Single app for feeder, fountain, litter
- Sleek design and easy cleaning
Cons
- Premium price
- Best value if you already use Petkit gear
If portions look light or delayed, work through our feeder troubleshooting checklist to rule out humidity, clogs, and firmware lags.
Accuracy & calibration
We cross-checked manufacturer specs against manual kitchen-scale readings for five days. Results: Petlibro ±2 g per meal, Sure Petcare ±3 g after a fresh tare, Petkit ±3 g with a monthly re-tare. Surface stability mattered most — a slight tilt added up to 5 g error. Re-tare after cleaning or moving the unit and avoid cabinet lips that tip bowls forward. Follow our calibration guide before judging any device.
App analytics & automation
Apps convert grams into trends. Petlibro charts were the easiest to read at a glance. Sure Petcare’s export helped our vet review because it showed week-over-week intake. Petkit’s dashboard grouped feeding with fountain and litter data, which reduced guesswork. Review weekly, not daily, to avoid alert fatigue and focus on real changes.
Automation recipes that helped
- Meal snapshot: When the feeder logs breakfast, trigger a camera clip to confirm the right pet ate. If not, increase separation or use a microchip feeder.
- Hydration pairing: After the largest meal, trigger a fountain refresh and a reminder to clean the filter weekly. Hydration alignment supports appetite and kidney health.
- Sunday review: Export grams for the week and compare to collar activity. If steps are down, reduce the largest portion by two grams and reassess next week.
Set these up in Alexa or Google Home. Start with the official steps for adding devices and building routines in Google Home support, then point routines at your feeder skill or Matter accessory.
Setup & integration
Plan ten minutes per device: pair over 2.4 GHz Wi-Fi, confirm tare, assign pet profiles, schedule one test meal, then scale up. If you use smart collars, merge activity and portions for a clearer calorie picture. Group feeders, fountains, and litter boxes in one dashboard using the routines inside our integration guide.
Jake the Savannah: field testing notes
Jake adapted to Petlibro’s gradual-portion mode in two days. Average breakfasts held near 28 g without begging.
Switching to the Sure Petcare feeder stopped a food-motivated housemate from stealing leftovers. Infinity’s motor tone
faded into room noise at night, so we did not see startle reactions that sometimes reduce intake.
FAQ
Can smart feeders help with weight loss?
Yes. Consistent portions and trend lines make small adjustments effective. Add a fitness tracker so calories reflect activity changes.
Do these work for cats and dogs?
All three support cats and small dogs. For large breeds, consider a platform scale and let the app log intake per bowl to preserve accuracy.
How accurate are the built-in scales?
Our averages: Petlibro ±2 g, Sure Petcare ±3 g, Petkit ±3 g with monthly re-tare. Level surfaces and periodic calibration make the biggest difference.
Can I integrate the data with smart-home dashboards?
Yes. Petlibro exports CSVs. Sure Petcare connects with IFTTT and Home Assistant. Petkit’s app offers reliable history and works cleanly inside Alexa and Google routines. See the routines in our integration guide.
