The Device Memory API is a new web platform feature aimed at helping web developers deal with the modern device landscape, which returns how much RAM the device has in gigabytes, rounded down to the nearest power of two.

The Device Memory API gives developers the ability to do two primary things:

• Make runtime decisions about what resources to serve based on the returned device memory value (e.g. serve a "lite" version of an app to users on low-memory devices).
• Report this value to an analytics service so you can better understand how device memory correlates with user behavior, conversions, or other metrics important to your business.