The 705 has two displays which you can switch between. Each can be divided up into up to eight sections. In each section you can display any of the live (speed/cadence/etc) or calculated (average etc) stats.
At their largest (1 or 2 items displayed) the characters are about 14mm tall, so quite large and easy to read at a glance. You can also adjust the contrast and backlight to make the text easier to read.
My preference is to have one screen showing just speed and cadence, and another with 8 smaller items with some more detailed ride break down for cafe stop statistics.