Whisker Litter-Robot 4 vs CATLINK Scooper Luxury Pro-X
The Whisker Litter-Robot 4 detects lighter cats: 3 lb against 3.5 lb for the CATLINK Scooper Luxury Pro-X, which matters most in a home with a kitten on the way. For a large cat, the Whisker Litter-Robot 4 is rated to 25 lb and the CATLINK Scooper Luxury Pro-X to 22. Every other published figure for both is in the table, with the rows where they differ tinted.
Whisker
Whisker Litter-Robot 4
~$699
Four years on, this is still the reference point everything else in the category gets measured against.
Best for: Two or three average cats in a home that already uses clay clumping litter
The maker publishes no drawer volume, so the days cannot be worked out. Its own claim is up to 8 days for one cat.
CATLINK
CATLINK Scooper Luxury Pro-X
~$439
Few boxes carry more kinds of sensor than this one: microwave radar, infrared, a scale, an anti-pinch strip and a start-up self-check.
Best for: One or two average cats where a big drawer and layered sensing matter more than a camera
- 1 cat
- ~18
- days
- 2 cats
- ~9
- days
- 3 cats
- ~6
- days
| Specification | Whisker Litter-Robot 4 | CATLINK Scooper Luxury Pro-X |
|---|---|---|
| Approx. price | ~$699 | ~$439 |
| Type | Rotating drum | Rotating drum |
| Kitten gate | Automate from ~3 lb / ~3 months | Automate from ~3.5 lb / ~4 months |
| Min. detection weight | 3 lb | 3.5 lb |
| Maker's minimum age | not published | 3 months |
| Max. cat weight | 25 lb | 22 lb |
| Big-cat fit | Rated for large breeds (to 25 lb) | Rated to 22 lb — short of the heaviest large breeds |
| Entry opening | 15.75 × 15.75 in | 13 × 10.6 in |
| Entry step | 6.9 in off the floor | 14 in off the floor |
| Interior height | 16.5 in | not published |
| Footprint | 22 × 27 in × 29.5 in tall | 22.8 × 23.6 in × 28 in tall |
| Drawer volume | not published | 13 L |
| Days between emptying | not published | ~18 / 9 / 6 days for 1 / 2 / 3 cats |
| Maker's drawer claim | Up to 8 days, one cat | Up to 15 days, one cat |
| Cats supported | Up to 4 | not published |
| Litter system | Clumping litter | Clumping litter |
| Litters listed | clumping clay | clumping clay, mixed |
| Litters to avoid | tofu, clumping wood/pine, non-clumping, paper, pellets, silica crystal | tofu, non-clumping, paper, pellets |
| Weight sensor | Yes | Yes |
| Anti-pinch protection | Stated by the maker | Stated by the maker |
| Infrared / radar | Yes | Yes |
| Camera | No | No |
| Noise | not published | 40 dB (maker's rating) |
| Wi-Fi app | Yes | Yes |
| Running cost | No required consumable | No required consumable |
| Bags / liners | Standard trash bag or Whisker's custom-fit drawer liners | CATLINK waste bag rolls |
| Warranty | 1 year | 1 year |
| First listed | 2022 | 2023 |
Whisker Litter-Robot 4: what it gives up
- Whisker publishes no drawer volume, only an 'about every 8 days for one cat' estimate
- Needs 2.4 GHz Wi-Fi; 5 GHz networks are not supported
- Plant-based, pine, pellet and white crystal litters are all on the do-not-use list
- At 22 by 27 inches it wants a floor spot bigger than most ordinary boxes
CATLINK Scooper Luxury Pro-X: what it gives up
- Pure and long-strip tofu litters are on the avoid list
- 22 lb ceiling
- The entry sits 14 inches up, a real step for an older cat
- 2.4 GHz Wi-Fi only
Full pages: Whisker Litter-Robot 4 · CATLINK Scooper Luxury Pro-X