Knowledge base · Litter
Can a kitten use an automatic litter box?
Not in unattended automatic mode, if the kitten is below the weight in the manual.
The Litter-Robot 4 manual and the Litter-Robot 5 international manual both say cats must weigh at least 1.36 kg to use automatic mode safely, because a lighter kitten may not trigger the sensors. The Litter-Robot 4 FAQ instead says the scale will not recognise kittens under 3 lb, which it writes as 1.3 kg. Use the manual in the box, and stay supervised if you are anywhere near the line.
The maker's supervised method is to leave the machine off until you know the kitten has used it, wait about 7 minutes, run one cycle while you know the kitten is out, then switch it off again. The Litter-Robot 5 manual adds a Cycle-button step and says that cycle is about 2 minutes. Follow the manual for your model rather than a blended version.
Other brands were not opened for this answer. Do not copy the 1.36 kg figure across to a machine that has not printed it.
Sources
- Litter-Robot 4 manual — Whisker, accessed 14 November 2026.
- Litter-Robot 4 frequently asked questions — Whisker, accessed 14 November 2026.
- Litter-Robot 5 manual, English international — Whisker, accessed 14 November 2026.