Have you forgot to buy something bottom line?
This "buy memo" is useful when such.
You can note what you buy before you go to every day of food buying,
You can note the other party to buy souvenirs before you go on a trip.
After buying, lets check the pre-purchase by tapping the switch.
Because during the shopping we have a lot of luggage,
At that time, it is convenient to check the shopping list in Apple Watch.
This buying forget prevention!