Despite being $600, this automatic cat litter box was worth the price tag. It comes with clumping litter and is self-cleaning ...

Then you can simply slide it out, pull the drawstrings of the trash bag and toss it away — no scooping or sifting (a godsend for cat owners). The litter itself stays fresh for about three weeks.

After setup, users only need to: Add litter occasionally (though the narrow opening can make this tricky). Replace the waste bag about every 16–20 days. Initiate the auto-packing process when ...