Low-Step Automatic Litter Boxes for Older Cats
A cat whose joints hurt may start going beside the box instead of in it, and drums in particular lift the litter bed well off the floor. The 8 below have a published step under 8 inches, starting at 4.8 inches on the Meowant MW-SC01. For comparison, the entries on CATLINK's Pro-X family sit 14 inches up.
How this list is ordered: Every box with a published entry-step height under 8 inches, ordered from the lowest step. 8 of the catalog’s boxes qualify.
- MeowantMW-SC01Rotating drum
1Meowant
~$220Meowant MW-SC01
Meowant's original drum steps down just 4.8 inches to its entry, low enough for a short-legged or arthritic cat.
- Entry step
- 4.8 in
- Type
- Rotating drum
Automate from ~3 lb / ~4 months 
2Whisker
~$599Whisker Litter-Robot EVO
Whisker's entry model shrinks the globe to fit a 20.6-by-24.3-inch spot and drops the curtain lasers: its own FAQ says it relies on weight sensors to know a cat is inside.
- Entry step
- 5.6 in
- Type
- Rotating drum
Automate from ~3 lb / ~3 months- MeowantMW-SC02Rotating drum
3Meowant
~$230Meowant MW-SC02
At 19.3 inches square, the SC02 takes up less floor than almost anything else here while still offering a 75-litre drum.
- Entry step
- 6.8 in
- Type
- Rotating drum
Automate from ~3.3 lb / ~4 months 
4Whisker
~$699Whisker Litter-Robot 4
Four years on, this is still the reference point everything else in the category gets measured against.
- Entry step
- 6.9 in
- Type
- Rotating drum
Automate from ~3 lb / ~3 months
5Whisker
~$799Whisker Litter-Robot 5
Whisker's 2025 replacement for the LR4 keeps the same 22-by-27-inch footprint and entry but raises the rated weight to 30 lb and the cat count to five.
- Entry step
- 7 in
- Type
- Rotating drum
Automate from ~3 lb / ~3 months
6Whisker
~$899Whisker Litter-Robot 5 Pro
What the extra $100 over the LR5 buys is a pair of AI cameras: one identifies which cat walked in by face, the other looks down at the litter bed.
- Entry step
- 7 in
- Type
- Rotating drum
Automate from ~3 lb / ~3 months- PETKITP9905Crystal tray
7PETKIT
~$200PETKIT Purobot Crystal Duo
This is PETKIT's answer to the ScoopFree: an open crystal tray, but with a camera that watches urination patterns and a 7-inch entry sill.
- Entry step
- 7.08 in
- Type
- Crystal tray
Automate from ~3.3 lb / ~6 months - MeowantMW-SC03Rake
8Meowant
~$220Meowant MW-SC03
Barely 7.8 inches tall, this looks like an ordinary litter pan until the two rakes move.
- Entry step
- 7.5 in
- Type
- Rake
Kitten threshold not published
Other shortlists
- Automatic Litter Boxes for Two or More Cats, by Days Between Emptying
- Self-Cleaning Litter Boxes Rated for Large Breeds
- Automatic Litter Boxes That Detect the Smallest Cats
- What Tray, Cartridge and Refill-Ring Litter Boxes Cost to Run
- Self-Cleaning Litter Boxes That Take Tofu Litter
- Automatic Litter Boxes by Published Noise Rating
- Automatic Litter Boxes Under $300