As usual, the full range of online seminars is really for developers (though possibly of interest), but the main two hour introductory keynote is the one to watch (or at least keep an eye on). Google will touch on Android 12, Chrome OS, Google Assistant, Google Play, Firebase and other services under its vast umbrella.
There's a possibility of more on the upcoming Pixel 6 pair of smartphones, rumoured as high end flagships this year, plus Google itself has indicated a new focus on Wear OS, its smartwatch platform.
From Google:
Keynotes & content
All content at I/O is virtual and free for everyone. You can save content to your calendar throughout the three-day event and watch on demand at your convenience. The Keynotes focus on company and product news, while Technical Sessions focus on product announcements and how to adopt new features.See the full scheduleWorkshops & Ask Me Anything Sessions (AMA)
These interactive sessions give you an opportunity to connect with Google experts. Workshops are instructor-led walkthroughs of a codelab, with Q&A encouraged, while AMAs are an opportunity to ask Google experts questions. You’ll need to reserve a spot to attend—hurry as space is limited.See all Workshops and Ask Me Anything SessionsLearning Lab
Grow your knowledge in the I/O 2021 Learning Lab. Find workshops, lessons, demos, tutorials, and resources around all the Google technology you love or want to learn more about.Codelabs and Learning Pathways are always-on, self-guided learning experiences that help you adopt Google technology. Plus, you can earn Google Developer profile badges for completing these lessons.Visit the Learning Lab