See what you’ve completed.The Completed Smart List in your sidebar lets you see all of your finished reminders, including when you checked them off.
Get reminder suggestions in Mail. When you’re corresponding with someone in Mail, you can use Siri to recognize possible reminders and make suggestions for you to create them.
Add a reminder quickly. Use natural language to quickly add a reminder. For example, write “Take Amy to soccer every Wednesday at 5PM” to create a repeating reminder for that day and time.
Siri: Say something like: “Remind me to stop at the grocery store when I leave here.”
Learn more. See the Reminders User Guide.