If you are tired of scooping litter every day, a smart litter box with a large waste drawer can be a game-changer. These automated systems handle the dirty work, allowing you to go days or even weeks between emptying. In this guide, we have evaluated the top models with spacious waste bins, focusing on reliability, safety, and ease of use. Whether you have one cat or a multi-cat household, we will help you find the right fit. For more on safety features, check out our review of top smart litter boxes with automatic safety pause for 2026.

Buying Guide: What to Look For in a Smart Litter Box with a Large Waste Drawer

Waste Drawer Capacity

The whole point of a large waste drawer is to reduce how often you have to empty it. Look for models with at least a 10-liter capacity. The RPZ Self Cleaning Litter Box offers a 15-liter drawer, while the Cumrige Automatic Litter Box features a 15-liter bin that can last up to 15 days for a single cat. Some models, like the ABRCT Open Top L1, use a liner system for easy disposal, and compatible bags such as the ANWA 40 Count Automatic Litter Box Bags can simplify cleanup further. A bigger drawer means less frequent maintenance, especially for multi-cat homes.

Safety Sensors and Anti-Pinch Protection

Automatic litter boxes move parts during cleaning cycles, so safety is critical. Look for models with multiple sensors that detect your cat’s presence and stop the mechanism immediately. The RPZ Self Cleaning Litter Box with APP uses touch-stop technology, and the Cumrige Automatic Litter Box pauses when your cat approaches. The ABRCT Open Top L1 includes an anti-pinch design for added peace of mind. For a deeper look, read our guide on best smart litter boxes with multiple safety sensors.

App Control and Smart Features

Many modern smart litter boxes offer app connectivity, letting you start cleaning cycles, monitor your cat’s usage, and adjust settings remotely. The ABRCT Open Top L1 and RPZ Self Cleaning Litter Box with APP both work with the Tuya Smart app, giving you real-time insights. The Cumrige model also supports app control via 2.4G WiFi. However, if you prefer simplicity, the RPZ Self Cleaning Litter Box (non-app version) operates without Wi-Fi or Bluetooth, using just a control panel. Consider your tech comfort level when choosing.

Open-Top vs. Enclosed Design

Cat preferences vary. Open-top designs, like the ABRCT Open Top L1 and the RPZ models, provide easy entry and a less enclosed feel, which many cats appreciate, especially larger breeds. Enclosed designs can help contain odors but may deter skittish cats. The Cumrige Automatic Litter Box uses a large drum that rotates, offering a different approach. Think about your cat’s personality and size. For more on cat-friendly designs, see our article on best smart litter boxes with cat presence detection.

Final Thoughts

After reviewing the options, we recommend the ABRCT Open Top L1 Self Cleaning Litter for its open-top design and reliable app control, perfect for small to medium cats. For larger households, the Cumrige Automatic Litter Box offers a massive 95L drum and 15L waste bin, ideal for multiple cats. Both provide excellent value and convenience, making litter box maintenance almost effortless.

Frequently Asked Questions

How often do I need to empty the waste drawer?

It depends on the model and how many cats you have. Most large waste drawers (10-15 liters) can hold waste for 5 to 15 days. For example, the Cumrige model’s 15-liter bin can last up to 15 days for a single cat. Empty it when the drawer is about three-quarters full to prevent odors.

Are smart litter boxes safe for my cat?

Yes, when they have proper safety sensors. All the models we reviewed include features like touch-stop or anti-pinch mechanisms. As of 2026, these technologies are well-proven. For more details, read our guide on Best Smart Litter Boxes with Safety Shutoff.

Do these litter boxes work with multiple cats?

Many are designed for multi-cat households. The RPZ Self Cleaning Litter Box and the Cumrige model both accommodate multiple cats, thanks to their large waste drawers and robust cleaning cycles. The open-top designs also allow easy access for several cats. Just ensure the litter capacity is sufficient for your feline family.

Can I use any clumping litter brand?

Most smart litter boxes work with standard clumping clay litters. Avoid non-clumping or crystal litters, as they may not form solid clumps for the sifting mechanism. Always check the manufacturer’s recommendations. For example, the Cumrige manual specifies clump litter types for best performance.