Google One is a subscription-based service offered by Google that provides expanded storage, enhanced features, and customer support for various Google services. It was launched in 2018 as a rebranding and expansion of the previous Google Drive storage plans.

The primary feature of Google One is increased storage space for Google products like Google Drive, Gmail, and Google Photos. Users can choose from different storage tiers ranging from 100 GB to multiple terabytes, depending on their needs. This additional storage is shared across all Google services, eliminating the need for separate quotas for each service.

In addition to extra storage, Google One offers several benefits to subscribers. These include family sharing, where users can share their storage with up to five additional family members, allowing them to use the shared storage and other Google One features. The family sharing feature also includes access to Google experts for help and assistance.