G Suite

Business email through Gmail
Shared calendars, documents, spreadsheets, and presentations
24/7 support by phone, email, and online
Security and administration controls
30GB cloud storage

Everything in G Suite Basic and...
Unlimited cloud storage (or 1TB per user if fewer than 5 users)
Smart search across G Suite with Cloud Search
eDiscovery for emails, chats, and files
Audit reports to track user activity

Everything in G Suite Business and...
Smart search across G Suite with Cloud Search
eDiscovery for emails, chats, and files
Audit reports to track user activity
Data loss prevention for Gmail and Drive