The Core Difference
What E5 adds over E3, feature by feature, in a clear comparison table.
Free resource
A side-by-side breakdown of E3 and E5, with a practical framework for deciding which fits your organization — or which roles need which.
What's inside
Everything you need to decide between E3 and E5 without defaulting to the more expensive option.
What E5 adds over E3, feature by feature, in a clear comparison table.
The situations where E3 covers everything you actually need.
The specific security, compliance, and analytics needs that justify E5.
Why licensing everyone on E5 usually wastes budget — and the better approach.
Why Rua Technologies
Rua Technologies assesses this exact decision for client tenants regularly — this guide reflects how we actually approach it, not a vendor sales pitch.
Tell us your user count and requirements, and we'll give you a straight answer on E3 vs E5.