As mentioned above, the increase in resolution and pixels means that the company can offer up even more font sizes and styles, making the text readable even at the smallest setting.

ENGADGET: Amazon Kindle Paperwhite review

This latest Kindle features eight text sizes, seven font sizes (hellooooo, Helvetica) and three settings for both line spacings and margins.

ENGADGET: Amazon Kindle Paperwhite review

To make the text larger than 10-point font requires zooming in on the document and dragging it around with the iRex's stylus, a naggingly slow process given E-Ink's refresh rate of about one second. iRex claims it redraws its screen faster than Kindle, but in Forbes.com's tests it locked up sporadically and often took far longer to refresh than Amazon's less flashy display.

FORBES: E-Books

Text Insert text, configure the formatting and alignment and link to other topics or sites Font, size, color, background color, link, border color, border weight, padding, margin Font rules below.

CNN: Mobile Landing Page

The dark menu with white text is easy to read, and the inbox itself is easy on the eyes with a light font.

FORBES: How Does The Gmail iOS App Compare To The Native Mail App?