If you have ever wondered whether your dog is eating the right amount or worried about running out of food while you are away, a smart feeder with a weight sensor can provide peace of mind. These devices track food levels and dispense precise portions, making mealtime both consistent and stress-free. In this guide, we review five of the best dog feeders with weight sensors for 2026, highlighting their key features and what sets them apart.

Whether you own a small cat or a large breed dog, the right feeder can help manage weight, prevent overeating, and keep you informed through your phone. We have assessed each model based on sensor accuracy, capacity, ease of use, and additional smart features. For more insights on smart feeding, check out our Automatic Feeders category.

Buying Guide

Sensor Accuracy and Food Level Monitoring

A reliable weight sensor ensures you always know how much food remains in the hopper. Models like the PETLIBRO Automatic Cat Feeder use a low food sensor that triggers app notifications and a red indicator light when the tank is nearly empty. This feature is essential for busy pet parents who want to avoid unexpected hunger strikes. For feeders that also track feeding history, see our Best Dog Feeders with Feeding History guide.

Capacity and Portion Control

Different dogs need different amounts of food. The Nityers Automatic Dog Feeder holds up to 8 liters and lets you set portions from 1 to 50 increments, making it suitable for both cats and small dogs. For larger breeds, the UTCG Large Breed Automatic Dog Feeder offers a 12-liter hopper that can last up to 20 days. Precise portion control helps maintain a healthy weight and reduces waste.

Connectivity and Remote Management

WiFi connectivity allows you to adjust feeding schedules and monitor food levels from anywhere. The PETLIBRO feeder works with both 2.4GHz and 5GHz networks, while the Wnfuo 15L model includes a built-in HD camera for live video. If you prefer feeders with camera features, browse our Feeders with Camera subcategory.

Special Sensors for Multi-Pet Homes

If you have multiple pets with different dietary needs, the PETLIBRO RFID Automatic Cat Feeder uses collar tag sensors to recognize each cat and open only for the designated one. This prevents food stealing and ensures each pet gets the correct meal. It is a smart solution for households where weight management is critical.

Final Thoughts

Choosing the best dog feeder with a weight sensor depends on your pet’s size, your schedule, and how much control you want. For most households, the PETLIBRO Automatic Cat Feeder offers a great balance of app connectivity, reliable low-food alerts, and easy scheduling. If you have a large breed and want a built-in camera for remote check-ins, the Large Breed Automatic Dog Feeder from UTCG provides excellent value with its 12-liter capacity and 1080P night vision. Both models will help you keep your pet fed on time, every time.

Frequently Asked Questions

How do weight sensors work in dog feeders?

Weight sensors in automatic feeders measure the amount of food in the hopper or detect when the bowl is empty. They send alerts to your phone or trigger visual indicators so you can refill before your pet runs out. Some models also use sensors to prevent over-dispensing if the outlet is blocked.

Are weight sensors accurate enough for portion control?

Yes, most modern feeders use calibrated sensors that provide consistent portion sizes within a small margin of error. For example, the Nityers feeder dispenses portions as small as 1/16 cup, and the PETLIBRO app lets you track feeding history to adjust amounts. Always check the manufacturer’s specifications for portion increments.

Can I use these feeders for both cats and dogs?

Many models are designed for both cats and small to medium dogs. The PETLIBRO Automatic Cat Feeder works well for cats and small dogs, while the 15L Wnfuo feeder is built for large breeds. Always verify the kibble size compatibility, as some feeders only handle dry food up to 18mm or 28mm.

Do weight sensors work during a power outage?

Most feeders include battery backup to keep the sensors and dispensing mechanism running during outages. The Nityers feeder uses 4 AA batteries, and the PETLIBRO models also support battery power. This ensures your pet’s feeding schedule is not interrupted, even if the WiFi goes down. For more on low-food alerts, see our Best Dog Feeders with Low Food Alerts guide.