I tried many, from clumping clay, tofu, and crystals to wood pellets (with a sieve tray and dog sheet underneath), etc. All of them still smelled whatever was said in their advertisements. This Japanese litter does not smell. This product is still more expensive than others, but it is worth more than the price if you look for truly zero smell.
Easy to clean, the pad can lock in urine for a week with no smell. Sparklet's price is the best and quick delivery.