Revo-Loo One (automatic litter box with weight tracking): our review

The bathroom corner might look available until you account for the laundry basket, the door swing and your own feet. With a width of 53,1 cm and depth of 57,1 cm, this enclosed litter tray needs a permanent place in the room. Its footprint is our main practical reservation. A narrow gap beside the basin could leave you wrestling with access whenever cleaning comes round.

The height of 58,4 cm matters too: check any shelf above the proposed spot, especially because the globe detaches for maintenance. Leave yourself room to remove it without rearranging the bathroom. We would choose a position where the appliance can stay put and its parts remain accessible.

At 9 kg, the unit has a typical carrying weight: use both hands when moving it. Plan its home before bringing it upstairs alongside the bag of litter.

An entrance threshold of 30 cm is a typical step for this kind of appliance. That makes it a useful starting point when considering access, but your cat's current movements tell you more than the word “typical”. A cat that strolls into an enclosed tray without hesitation presents a different buying decision from an older companion that approaches every raised edge cautiously.

Choose around the cat's movement. For an older cat, the UBPet C41 is better suited, with a lower entrance step of 20,3 cm. The UBPet C41 has a higher unit weight of 10 kg, so moving it calls for more effort. The UBPet C41 is less well rated overall, but easier access can matter more than the overall ranking.

An enclosed design also needs to suit your cat's preferences. If your cat regularly avoids covered trays, the attraction of automatic cleaning should not outweigh that preference.

The manufacturer gives a noise level of 41 dB during the cleaning cycle. In a flat, a litter tray beside the sitting room has a different audience from an appliance tucked into the utility room. That figure helps you weigh up the location, but it cannot tell you exactly how a cycle will sound from your favourite chair.

Does your cat tend to visit the tray just after tea, when the house finally settles? Think about where you spend that quiet stretch of the evening and how close the appliance would be. A stated sound level leaves the character of the operating noise unexplained.

Choose the location with your evening in mind. If operating sound would bother you while reading or watching television, consider a spot further from your seat. Your cat already has sufficient influence over the household timetable without recruiting the litter tray as an assistant.

Standard waste bag compatibility is a useful everyday detail: replacement bags need not be a special purchase tied to this appliance. You still need to keep bags and replacement litter in the household routine, but a familiar consumable makes that routine easier to organise. We like this practical choice because it keeps replacement supplies straightforward.

The airtight waste compartment is intended to contain odours from collected waste. That is relevant when friends arrive and the hallway sits close to the tray, though it does not make emptying or cleaning optional. Odour containment needs ordinary upkeep alongside it.

A detachable globe gives you a removable part to clean. The litter tray capacity is 6 L, describing the litter it holds, rather than the waste it collects. For cats sharing the appliance, replenishing litter and removing collected waste remain separate jobs. Neither should disappear from the neighbour's instructions when you go away.

Weight monitoring adds a measurement to the litter routine. If you want to follow your cat's weight, that is a useful feature to have alongside waste management. Would you find those readings helpful, or would they become another thing you rarely look at? The answer helps put the equipment into perspective without expecting it to do more than the stated function.

The manufacturer also specifies a weight sensor as a safety feature. Keep its role separate from weight monitoring. A weight reading cannot diagnose a problem, and changes in your cat's weight or litter habits belong in a conversation with a vet.

Overall, this model sits among the best on the site in our scores. Its appeal comes from a practical combination: an enclosed tray, detachable globe, standard bags and weight monitoring. We favour equipment that has a clear role in the household routine.