The slide looks great on a laptop. Why is it unreadable on a phone?

Review the export at an actual phone-sized display rather than judging a zoomed canvas. Give one idea the visual priority on each slide. Enlarge the relevant product detail and remove sentences the image already communicates.

Keep essential text away from areas that may be covered by platform controls, and verify the current publishing preview instead of assuming one permanent safe-area template. If the explanation needs a paragraph, consider another slide or a simpler example before shrinking the font.