Litter-Robot 3 vs 4: is an upgrade worth it?
If you’re a cat owner, cleaning cat litter is one of the most problematic tasks. In recent years, self-cleaning litter boxes have gained immense popularity, and two models from Whisker battle for the top spot among feline lovers. Hence, the Litter-Robot 3 vs. 4 dilemma. Which one is the best one for you?
With the help of the Cybernews’ expert team, I created this in-depth comparison to help you decide which model suits your needs. Both Litter-Robot models are designed to help you tackle cleaning litter with their automatic features and sensors. However, some notable differences can affect your user experience and tilt the scale in favor of a more affordable older model or toward a technically more advanced newer version.
So, let’s take a closer look at both kitty litter robot models to help you discover which one is best for you.
Litter-Robot 3 vs 4 overview
I created the comparison table below to showcase the key features and differences between Litter-Robot 3 and 4 and help you make a decision about which one may be more suited for you. Let’s take a closer look.
| Feature | Litter-Robot 3 Connect | Litter-Robot 4 |
| Colors | Grey, beige | Black, white (various bezel options) |
| Size | 24.3 x 27 x 29.5 inches | 22 x 27 x 29.5 inches |
| Weight | 24 pounds | 24 pounds |
| What we like |
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| What we don’t like |
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What is a Litter-Robot self-cleaning box and how does it work?
The key difference between Litter-Robot 3 and 4 is the more advanced technology of the newer model. Both are considered among the best automatic litter box options for hassle-free, self-cleaning waste removal. The devices use an innovative system to separate waste from clean litter, keeping the box fresh and ready for use.
The waste goes into an enclosed waste drawer, and both Litter-Robot models come with carbon filters for odor control. Litter-Robots come already assembled, and their globe design takes up more space than a typical litter box.
The self-cleaning litter box has a sensor that activates when a cat enters to do its business. The self-cleaning cycle begins automatically in a few minutes when a feline departs the box. Thus, you won’t have to clean litter or scoop the cat’s waste. Another essential benefit is that both kitty litter devices minimize odors.
They also have similar components. The litter is within the globe compartment and you will have a waste drawer with a bag to collect the waste. Moreover, the cat robot litter box comes with carbon filters and various sensors depending on the product's version if you're wondering how much is a litter robot, the price varies based on these features.
How we test self-cleaning litter boxes
To find the best self-cleaning litter box, I followed Cybernews's testing methodology. Providing evidence-based claims is essential to this comparison. Here is how I created this detailed Litter-Robot 3 vs. 4 comparison:
- Extensive research (40%): I analyzed both models and, with the Cybernews team's help, considered their efficiency, durability, and reliability.
- Key features (20%): Design, looks, and how the device performs were essential in my comparison. Factors like noise level, available sensors, waste disposal system, and required maintenance were evaluated.
- Budget considerations (20%): Weighing features and performance against the cost of the Litter-Robot model is essential to any purchase decision, so I also focused on this during this comparison.
- Customer feedback (20%): Reviews and testimonials from actual users are invaluable as they can objectively identify the pros and cons over a more extended period, adding value to my analysis.
Litter-Robot 3 vs 4: setup
The good news is that you won’t have any trouble with the setup. Robot kitty litter models come already assembled, so you just need to find space and plug them in. Litter-Robot 3 Connect and 4 have roughly the exact dimensions and will take up more space than the typical litter box.
Once you find a perfect spot for a self-cleaning litter box, place cat litter inside the globe, and your cats can use the device. The main difference between Litter-Robot 3 and 4 is in the companion Whisker app. Aside from having different features, the newer version has a far more convenient QR code placement.
Litter-Robot 4 has the code needed to reconnect inside the waste drawer, while the older model has it in the back of the box at the base. Because these devices can disconnect, reconnecting can be a hassle with Littler Robot 3 Connect, but much more convenient with Littler Robot 4.
Litter-Robot 3 vs 4: design
The Whisker’s automatic litter cleaning boxes are similar in shape, with the waste compartment and a globe with the waste removal system on top. Litter-Robot 3's dimensions are similar to model 4's, except for the width. The older model is 24.5 inches wide, compared to Litter-Robot 4, which measures 22 inches wide.
Despite being narrower, Whisker's newer self-cleaning litter box has a wider entrance for cats. The opening is 15.75 inches in the newer robot and 10.25 inches in the older device. Another essential difference is in the height of the entryway, where Litter-Robot 4 has it much closer to the ground, which benefits older cats. However, both models support ramps so that all cats can climb into the bowl.
Litter-Robot 3 is available in gray and beige, while its successor has black-and-white variations with different bezel options.
Litter-Robot 3 vs 4: odor control
Aside from the convenience of not needing to remove waste from the litter box, Litter-Robot models have odor control features. While the device can’t completely eliminate the odor, it significantly reduces smells in your household.
Both robots have carbon filters that require regular replacement to eliminate odor. Our research showed that Litter-Robot 4 is more effective in this segment due to its tightly sealed waste drawer. The newer version can handle more waste despite its smaller waste drawer volume because of its favorable rectangular shape.
Because eradicating the odor is impossible, consider replacing waste bags in Litter-Robot 3 more frequently.
Litter-Robot 3 vs 4: sensors
One of the biggest reasons for a potential upgrade from Litter-Robot 3 to 4 is for more advanced sensors. Like its predecessor, the new self-cleaning litter box has a weight sensor that detects the presence of a feline inside.
On top of that, Litter-Robot 4 has a laser sensor, so it’s much more responsive in the stopping mechanism. Aside from a faster response time, Litter-Robot 4 can also accommodate cats weighing just 3 pounds. The previous model has a minimum 5-pound weight.
While both versions have a companion app, Litter-Robot 4 has many more features. It can support up to four cats in a household and track their habits. By looking at their activities, you can seek help from a veterinarian if your cat isn’t going regularly. Laser sensors can be oversensitive and set the Litter-Robot 4 more often.
Both versions of the self-cleaning Litter-Robot box have waste drawer sensors, but the more advanced Litter-Robot 4 also monitors the litter level so you can tell when to add more litter and take out the waste bag.
Litter-Robot 3 vs 4: noise
Noise isn’t something to worry about with Litter-Robot’s two latest versions. That said, Litter-Robot 4 is quieter than 3 Connect. The cleaning process won’t bother you, and most cats will not mind the low noise level.
Despite being twice as loud, Litter-Robot 3 Connect is still not particularly loud, but some cats might be startled by its waste removal cycle. The noise level improvements, along with the sensors and broader entryway for cats, are the three most significant improvements when compared to Litter-Robot 3 and 4.
Litter-Robot 3 vs 4: deep cleaning
The design is very similar, so mandatory deep cleaning is approximately the same. You will have to remove litter, empty the waste bag, and disassemble the Litter-Robot. Whisker recommends deep cleaning at least every three months. This timeframe might adjust depending on the number of cats in your home.
Once you take everything apart, wash and dry thoroughly all the parts before putting them back together. You will also have to vacuum the waste drawer. A similar design means both Litter-Robot versions have the same cleaning process, which takes at least an hour.
Litter-Robot 3 vs 4: price
As expected, Litter-Robot 4 has a higher price tag due to novel features, more sensors, and quieter work. If you don’t have a self-cleaning litter box or you live in a home with multiple cats, LitWinnter-Robot 4 might appeal to you. For its price, it offers value in advanced laser sensors and a more efficient waste drawer. It is also quieter and a bit smaller.
Litter-Robot 3 Connect is still a good investment at a lower price point and is perfect for feline owners with smaller budgets. It does the job well, and Litter-Robot 3 Connect owners might not find a reason to upgrade.
Pros and cons of Litter-Robot 4
Litter-Robot 4 is a newer and upgraded version of the self-cleaning litter box. With tech and design advancements, it has some clear advantages over the Litter-Robot 3 Connect but also some drawbacks, such as the following:
Transitioning process from Litter-Robot 3 to 4
If you're considering an upgrade because of the Litter-Robot 4's more advanced features, there are several things to consider. Because both self-cleaning litter boxes have roughly the exact same dimensions, you won’t have to consider space. However, as with other changes in your home, it is not advised just to switch because your cats need time to adjust.
You should follow the instructions as though you were changing from a typical litter box to a new automated one. Let your Litter-Robot 4 sit unplugged for some time. Place it next to the Litter-Robot 3 that your cats are now using. Whisker also suggests keeping the old litter box full, which is not applicable since Litter-Robot 3 self-cleans.
Don’t rush things, and let your cat slowly adapt to the new litter box. Since cats are naturally curious, they will eventually notice the new litter box, and in time, you can make the transition. Because these products are similar, you can use most accessories from the Litter-Robot 3 on the latest model. You can use carbon filters, waste drawer liners, and shields. The ramp requires a small adapter, and the litter is also the same.
Litter-Robot 3 vs 4: final verdict
Going from a classic litter box to Litter-Robot is a huge step. You won’t have to collect waste from the litter box, and the odor is significantly reduced. Cat owners can transition to a self-cleaning litter box, depending on their needs.
A more budget-conscious buyer can get the Litter-Robot 3 Connect. It does the base job well and comes at an affordable price. If you want the latest features, more advanced sensors, and better odor control, Litter-Robot 4 is the better choice. The same goes for if you live in a multi-cat household, as Litter-Robot 4 can handle up to four cats.
I would also recommend Litter-Robot 4 to people sensitive to noise or odor, as it’s significantly quieter and has better odor control.
If you are purchasing a self-cleaning litter box for the first time, Litter-Robot 4 is the way to go. Its advanced sensors, better app connectivity and features, lower noise levels, and odor control clearly make it a better choice. If you want an upgrade, the additional cost is justifiable with these improvements compared to Litter-Robot 3.
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FAQ
Is the Litter-Robot 4 worth the upgrade from the Litter-Robot 3?
Yes. Litter-Robot 4 has better sensors, odor control, and more features in the Whisker app. It is also less noisy and has more waste capacity.
How does the Litter-Robot 4 reduce odors compared to the Litter-Robot 3?
Both robots have carbon filters that need regular changing. Outside the filter, Litter-Robot 4 has a more tightly sealed waste drawer that performs better in controlling odors.
Can I use the same litter in both models?
Yes. Quality clay-clumping cat litter is the best choice for both models.
Is the Litter-Robot 4 quieter than the Litter-Robot 3?
Yes. Litter-Robot 4 has a twice-as-quiet engine for waste removal. However, Litter-Robot 3 is also not unbearably loud.
Do both models work with the same mobile app?
Yes. Both models work with the Whisker app, but Litter-Robot 4 has more functionalities. It can tell when to add litter, recognize up to four cats based on weight, and track their bathroom habits.
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