Add a dish - This is a setting that will alert you when you can add a last minute dish to the wash cycle.
China/ crystal setting - This indicates a lighter wash cycle for china, crystal, and other slightly used and dirty dishes.
App control - Some wi-fi connected dishwashers allow you various controls of your appliance from your smartphone.
Delay start - This option allows you to start your wash cycle up to 9 hours later than when you loaded it. This is helpful for when you load the dishwasher right before dinner and then you can hit the button to finish loading later that night.
Steamware holders - Small clips on the side of the rack to hold crystal so it can be washed.
Plate warmer - This warms up your dishes just before you eat. This is handy for never letting dinner get cold while on the table.
Pots and pans cycle - This will provide a longer heated cycle for those super dirty cookware items.
Child lock - This will prevent your children from opening the dishwasher and eliminate the possibility of them crawling inside of it.
Bottle wash - This is especially helpful if you have a baby who uses lots of bottles during the day. Or twins! This wash cycle is set to clean their bottles better.
Hard food disposer - No need to remove food from the dinnerware by hand. This feature makes short work of even large remnants of food.
Tub material - These materials come in different styles and finishes. Stainless steel is best for resisting stains and odors and also transferring heat for a better dry to your dishes. Gray or slate colors are good for resisting rust and minimizing the appearance of stains. Plastic is now also very durable and found commonly on less expensive dishwashers.
Filters - Finding a dishwasher with removable filters will make this an easy thing to clean for after your new dishwasher has ran a few loads.