Format is the first thing that determines a device's class and price. Let's figure out what to choose.
When A4 Is Enough
- Printing contracts, letters, invoices.
- A small office with standard document flow.
When You Need A3
- Drawings, plans, spread-page presentations.
- Print production, layouts, large tables.
Conclusion
An A3 device also prints A4, but it costs more and takes up more space. Get A3 only if you genuinely need that format — otherwise you're overpaying.