Differences What are the advantages of each

Front view of Icarus Excel

Reasons to consider the
Icarus Excel

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Expandable memory SDHC vs None About half of E-Readers have an expansion slot ; store more content with a removable microSD card
Doesn't use a proprietary power connector No (mini-USB) vs Yes (Lightning port) Somewhat common; Standardized connectors are cheap, compatible and easy to find
Much better Input/Output port mini-USB vs Lightning port 100% better Input/Output port
Is readable in direct sunlight Yes (E-Ink) vs No (LCD) Somewhat common; text doesn't look washed out in direct daylight
Comes with a stylus Yes vs No About half of E-Readers come with a stylus
Lighter weight 530 g vs 652 g Around 20% lighter weight
Front view of Apple iPad 4

Reasons to consider the
Apple iPad 4

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Has a built-in light LED backlight vs None Most E-Readers have a built-in light
Significantly thinner 9 mm vs 12 mm 25% thinner ; easily slides into bags
Much higher resolution screen 2048 x 1536 vs 1200 x 825 Around 3.2x higher resolution screen
Can display full color Yes (LCD) vs No (E-Ink) Somewhat common; view images, read comics, and web-browse in full color
Directly download library e-books to device Yes vs No Somewhat common; offers quick access to browsing public library titles available for e-readers
No black flash when turning pages No (LCD) vs Yes (E-Ink) Somewhat common; provides less obtrusive page turns
Significantly faster processor 1,400 MHz vs 800 MHz 75% faster processor; a faster processor improves responsiveness
Automatically adjusts screen orientation Yes vs No Somewhat common; auto-adjusts between portrait & landscape based on orientation

Reviews Word on the street

Specifications Full list of technical specs


Excel  vs
iPad 4 
Screen resolution 1200 x 825 2048 x 1536
Screen size 9.7" 9.7"
Pixel density 150 ppi 263 ppi
Built-in light None LED backlight
Screen type E-Ink LCD
Flashes screen black during page turns Yes No

technical specs

RAM 256 MB 1,024 MB
Processor 800 MHz 1,400 MHz


Expansion slot SDHC None
Memory 4 GB 16 GB


Excel  vs
iPad 4 
Input/Output port mini-USB Lightning port
Cellular data None None
Wi-Fi 802.11b/g/n 802.11b/g/n
Bluetooth connectivity No Yes


Note taking Yes Yes
Text to speech Yes Yes
Directly download library e-books to device No Yes
Web browser Yes Yes
Stereo speakers No Yes
Accelerometer No Yes
Parental controls No Yes

form factor

Housing type Plastic Aluminum and glass
Size 179 x 243 x 12 mm 241 x 186 x 9 mm
Weight 530 g 652 g
Interface touchscreen & buttons touchscreen
Headphone jack Yes Yes
Icarus Excel
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Apple iPad 4
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