Both are rolling-drum automatic litter box es with the same pitch: automatic sifting, logs of visits and weight, and odour control. The Pura MAX 2 body is the more compact of the two, while the CATLINK Luxury offers a larger drum and a higher stated weight limit, so the difference shows up in entry height and interior room.

In practice, the MAX 2 suits smaller homes and single cats of average size, while the Luxury is aimed at multi-cat households or heavier cats that need room to turn around. Both need stable power and a level floor, so measure the doorway and the footprint before ordering.

The trade-off is space against comfort: a bigger drum is roomier but takes more floor and is harder to clean, and scent modules, mats and liners are consumables whose long-term cost depends on replacement frequency. Timid or senior cats often need a transition period, and a refused box should go back to an open pan.

Start by confirming the cat's weight, age and tolerance for an enclosed space, then match that to the available floor area and budget. For cats with urinary or bowel changes, the app log is only a clue; a diagnosis still needs a veterinarian.