While Big Sur is compatible with a wide variety of Macs, it isnt supported by all models.

Youll need 35.5GB of available storage to upgrade to Big Sur from macOS Sierra or later.

If upgrading from an earlier macOS release, youll need up to 44.5GB of available space.

Selecting About This Mac from Apple menu.

Which Macs Are Compatible With Big Sur?

If your Mac was released in 2015 or later, its compatible.

Thankfully, Apple helpfully lists all Mac models that are compatible with macOS 11 Big Sur on its website.

Overview tab under About This Mac.

Heres the full list:

Is My Mac Too Old for Big Sur?

However, if youre unsure which model you have, theres an easy way to check.

Click theApple iconat the top left of your screen.

In this case, you may want to look into using an older version of macOS.

Alternatively,visit the macOS Big Sur page on the App Storeand selectGet.

You’ll be alerted if any apps give a shot to log your keystrokes or take a screenshot.