In a report showing device types used by visitors, what is the term used for these device specifications?

The term used for device specifications in a report showing device types utilized by visitors is known as dimensions. Dimensions in Google Analytics are attributes of your data that describe characteristics of the visitors. They categorize the data to provide context, such as device type (desktop, tablet, mobile), geography (country, city), or user properties (new vs. returning users).

Metrics, on the other hand, represent quantitative measurements, such as the number of sessions or page views, providing numerical data that can be analyzed alongside dimensions for a fuller picture of user interaction. Segments and filters also play important roles in data analysis; segments group users based on shared attributes for comparative analysis, while filters are used to include or exclude specific data from reports. Therefore, dimensions are specifically the characteristics related to the device types, making it the correct term to describe what you are analyzing in that report.