Neakasa M1 Plus Open-Top Self-Cleaning Cat Litter Box (PS0120) vs Whisker Litter-Robot 4 with Step and Fence, Black (LR4-0301-00-CA)
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
Neakasa M1 Plus Open-Top Self-Cleaning Cat Litter Box (PS0120)
Large cats that will not enter an enclosed box
The M1 Plus is Neakasa's open-top automatic box: a rotating litter chamber, an 11 L waste bin and a pull-and-wrap bag system, on four legs you fit yourself. Neakasa's manual and product page put the Kitten Mode threshold at 1 kg, about 2.2 pounds, while the Amazon bullet says 3.3 pounds. The entrance sits 13.8 inches off the chamber floor and the manual asks for clumping bentonite litter.
Published specifications
- Manual: product model PS0120, rated 12 V, 24 W; operating noise level 50 dB as the maker states it
- Manual and maker page: Kitten Mode for cats under 1 kg (2.2 lb), pregnant and nursing cats; listing says 3.3 lb
- Manual: entrance height 35 cm (13.8 in); maker page gives 13.86 in and a 2.2 lb to around 33 lb cat range
- Manual: clumping bentonite recommended; avoid pellets over 3 mm diameter or 10 mm length
- Manual: litter capacity 6.5 L and waste bin 11 L; maker page says 7.17 L and 11.23 L
- Manual: empty the waste bin every 7-10 days for one cat, 7 days in hot weather, never beyond 14
Strengths
- Open top with no entry flap, and Neakasa publishes a 13.8-inch entrance height and a stated cat range to around 33 lb
- Five on-unit buttons cover cleaning, levelling, emptying and network reset without the app
- Litter chamber unlocks and lifts off for rinsing, and Neakasa publishes the monthly deep-clean schedule
Caveats
- Neakasa's documents say Kitten Mode below 2.2 lb while the Amazon bullet says 3.3 lb, and Kitten Mode means supervised manual cleaning
- The manual states a 12-month warranty while the listing and the maker's page advertise two years
- Four support legs to fit, a 13.8-inch entrance, and litter-level recalibration every time you change litter type
Read the full Neakasa M1 Plus Open-Top Self-Cleaning Cat Litter Box (PS0120) guide
Whisker Litter-Robot 4 with Step and Fence, Black (LR4-0301-00-CA)
Multi-cat homes with floor space clear of every wall
Whisker's Litter-Robot 4 sifts clumps into a sealed drawer after each use and reports litter and waste levels to the Whisker app. Its manual sets one hard rule: a cat must weigh at least 1.36 kg, about 3 pounds, to use Automatic Mode, and lighter kittens need a supervised manual routine instead. It must not touch a wall, wants a hard level floor for its scale, and takes clumping litter only.
Published specifications
- Listing model and part LR4-0301-00-CA; manual's SKU table lists it as Litter-Robot 4 with Step, Black
- Manual: cats must weigh at least 1.36 kg for Automatic Mode; FAQ says under 3 lb is not recognised by the scale
- Maker page: 22 x 27 in footprint, 24 lb empty, 15 V DC; FAQ entryway 15.75 x 15.75 in, no upper weight limit stated
- Manual: clumping litter to the MAX line, about 3.6-4.5 kg or 4 L; non-clumping, newspaper and wood pellets excluded
- Manual: custom liners or any 37-49 L trash bag; carbon filter about one month; clean cycle 2 minutes
- FAQ: 2.4 GHz Wi-Fi only, 5 GHz not supported; WhiskerCare 1-year, 3-year plan sold separately
Strengths
- Whisker publishes the exact SKU, the weight rule, entryway size and interior globe size for this model
- Runs from a five-button panel without Wi-Fi, and the Connect button turns Wi-Fi off
- Globe, bonnet and drawer lift off for washing, and the carbon filter is described as optional
Caveats
- Automatic Mode needs every cat at 1.36 kg or more; under that the maker's own answer is a supervised manual routine
- Must not touch any wall or corner, and the manual says scale accuracy drops on carpet without the separate Carpet Tray
- Ongoing spend on liners, carbon filters and base seal strips, and battery backup is a separate kit
Read the full Whisker Litter-Robot 4 with Step and Fence, Black (LR4-0301-00-CA) guide
How to choose between them
Choose the Neakasa M1 Plus Open-Top Self-Cleaning Cat Litter Box (PS0120) if your situation matches: Large cats that will not enter an enclosed box. Its main caveat: Neakasa's documents say Kitten Mode below 2.2 lb while the Amazon bullet says 3.3 lb, and Kitten Mode means supervised manual cleaning.
Choose the Whisker Litter-Robot 4 with Step and Fence, Black (LR4-0301-00-CA) if your situation matches: Multi-cat homes with floor space clear of every wall. Its main caveat: Automatic Mode needs every cat at 1.36 kg or more; under that the maker's own answer is a supervised manual routine.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- Neakasa M1 user manual (product model PS0120), linked from the M1 Plus product page Source for Neakasa M1 Plus Open-Top Self-Cleaning Cat Litter Box (PS0120)
- Neakasa M1 Plus product page with published spec block Source for Neakasa M1 Plus Open-Top Self-Cleaning Cat Litter Box (PS0120)
- Whisker Litter-Robot 4 instruction manual (PDF, SKU table lists LR4-0301-00-CA) Source for Whisker Litter-Robot 4 with Step and Fence, Black (LR4-0301-00-CA)
- Whisker Litter-Robot 4 product page with published specs Source for Whisker Litter-Robot 4 with Step and Fence, Black (LR4-0301-00-CA)
- Whisker Litter-Robot 4 Frequently Asked Questions support article Source for Whisker Litter-Robot 4 with Step and Fence, Black (LR4-0301-00-CA)
Primary sources checked .