Priced at the higher end of the four devices available ($ 499), the RocketBook pitches portability and clarity: a 105
dots per inch screen (most computers today use a 72 - dpi screen) with a glare - resistant or «transvective» finish.
Not exact matches
I have read conjecture that Amazon may never upgrade the 300 pixel -
per -
inch screen, because it is enough to convince the human eye it is reading solid, ink on paper words, rather than assembled
dots.
Screen is 1,440 x 1,440 pixels square, with 453
dots per inch, or DPI, resolution.
It features a 300
dots -
per -
inch E Ink display with enhanced contrast and twice as many pixels as the Nook GlowLight (text and images do pop a little more); Barnes & Noble says it's on par with the Amazon Kindle Paperwhite's
screen.
Another lessons learned was working with
screen captures and increasing the DPI (
dots per inch) for both the print and electronic books.
The 4in LCD
screen has a resolution of 540 x 960 which results in a
dots -
per -
inch figure of 275dpi.
Users will be reading eBooks on a myriad of different devices, including but not limited to; cell phones, tablet devices, HD Tvs and desktop computers, all with varying
screen resolutions and dpi (
dot per inch) sizes.
However, dpi is
dots per inch, a measurement for print only; ppi is pixels
per inch, a measurement for
screens only.
It has the same six -
inch, black - and - white, 300 -
dots -
per -
inch e-ink
screen.
Unfortunately it's not quite high - resolution enough to prevent you from being able to discern individual pixels when you wear it, and the HTC Vive Pro, with its 78 % increase in
dots per inch, offers a much sharper
screen in addition to built - in audio, which the original Vive lacks.