Our Verdict
FEELNEEDY S20-A Wins

Its 11.0L waste drawer offers superior capacity, lasting up to 15 days, and enhanced odor control for multiple cats. Choose UPFAS Little-Box-500C-DIY-001 for a quieter ($199.99), budget-friendly option for medium cats and kittens, if assembly is not an issue.
Bottom Line: FEELNEEDY S20-A is the better choice. Its 11.
Who Should Buy Which?
Find the right product for your needs
Buy FEELNEEDY if...
Self Cleaning Litter Box,
If you manage a multi-cat household or prioritize convenience with minimal waste disposal, the FEELNEEDY S20-A is your ideal choice. This buyer values advanced odor control and safety, thanks to its airtight storage and weight/infrared sensors. With an 11.0L waste bin holding up to 15 days of waste, they seek a robust solution that reduces daily chores. They appreciate app monitoring of cat habits and a device that handles various litter types, justifying its higher price for superior features and peace of mind.
Buy UPFAS if...
UPFAS Automatic Cat Litter
The UPFAS Little-Box-500C-DIY-001 is perfect for budget-conscious owners of medium cats or kittens who prioritize a quiet living environment. This buyer is comfortable with a 90-minute assembly process to save $100 and values the ultra-quiet operation (under 35 dB) of the litter box. They appreciate app control for monitoring cat weight and usage without a subscription, and the ability to fully wash the drum part for hygiene. It's a great entry-level automatic option for smaller felines.
Spec Comparison
10 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $300 | $200 |
| Rating | 4.1(512) | 4.4(942) |
| Sensor Type | weight | weight |
| Max Pet Weight | 0 lbs | 0 lbs |
| Waste Capacity | 11L | — |
| App Subscription | — | Free |
| Weight | 0 lbs | 0 lbs |
| Model Number | S20-A | Little-Box-500C-DIY-001 |
| WiFi | Yes | Yes |
| Cleaning Cycle | 2 min | — |
| Noise Level | — | 35 dB |
| Dimensions | — | 19.84" × 22.44" × 18.23" |
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Pros & Cons
Quick overview of strengths and weaknesses
FEELNEEDY Self Cleaning
- 11L waste bin holds cat waste for up to 15 days
- Weight & infrared sensors ensure cat safety during cycles
- App tracks cat habits, controls cleaning, and alerts
- Supports clumping, silica, and tofu litter types
- Requires 2.4G WiFi connection for app features
- Limited to clumping, silica, or tofu litter types
- Litter bin requires tilting for full litter removal
UPFAS Automatic Cat
- Cleaning noise is below 35 dB.
- App monitors cat weight, time, and frequency of use.
- Drum part is fully washable for cleaning.
- Remote control and monitoring via app (Wi-Fi/BT).
- Requires 90 minutes for assembly.
- Not suitable for large adult cats.
Frequently Asked Questions
Common questions about this comparison
Which litter box is better for homes with multiple cats or larger cats?
The FEELNEEDY S20-A is better, designed for multiple cats with enhanced safety sensors. The UPFAS Little-Box-500C-DIY-001 is explicitly not suitable for large adult cats, focusing on medium cats and kittens.
What is the main difference in waste capacity between the two?
The FEELNEEDY S20-A features an 11.0L waste bin, capable of holding cat waste for up to 15 days. The waste capacity for the UPFAS model is not specified, making FEELNEEDY the clear winner for less frequent emptying.
Is the price difference between the FEELNEEDY ($299.99) and UPFAS ($199.99) worth it?
The FEELNEEDY S20-A offers a larger 11.0L waste capacity, multi-cat support, and enhanced odor control. The UPFAS is more budget-friendly, quieter (35 dB), but requires assembly and is for smaller cats.
Which automatic litter box is quieter during operation?
The UPFAS Little-Box-500C-DIY-001 is significantly quieter with a cleaning noise level below 35 dB. The FEELNEEDY S20-A does not specify its operating noise level.
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