Reader Rocket Review Our evaluation of Aura HD vs 7HD


How do the screens stack up?

Aura HD
Arc 7HD
Resolution, pixel density and Screen size


How good is the supporting ecosystem?

Aura HD
Arc 7HD
e-bookstore size, average NYT best sellers price, NYT's top selling titles and 4 more


How responsive and how long does the e-reader last?

Aura HD
Arc 7HD
Battery life


How do our trusted review sites rank these products?

Aura HD
Arc 7HD
Reviews from

Reader Rocket Score

Display, Bookstore, Performance and Reviews

Aura HD
Arc 7HD

Kobo Aura HD 

Reader Rocket recommends the Kobo Aura HD  based on its performance.

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Differences What are the advantages of each

Front view of Kobo Aura HD

Reasons to consider the
Kobo Aura HD

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Expandable memory microSD (up to 32GB) vs None About half of E-Readers have an expansion slot ; store more content with a removable microSD card
Much longer battery life 28 hour vs 8 hour 3.5x longer battery life; read more between charges
Can take notes Yes vs No About half of E-Readers support take notes
Is readable in direct sunlight Yes (E-Ink) vs No (LCD) Somewhat common; text doesn't look washed out in direct daylight
Lighter weight 240 g vs 341 g Around 30% lighter weight
Front view of Kobo Arc 7HD

Reasons to consider the
Kobo Arc 7HD

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Significantly thinner 9.6 mm vs 11.7 mm Around 20% thinner ; easily slides into bags
Can display full color Yes (LCD) vs No (E-Ink) Somewhat common; view images, read comics, and web-browse in full color
No black flash when turning pages No (LCD) vs Yes (E-Ink) Somewhat common; provides less obtrusive page turns
Much faster processor 1,700 MHz vs 1,000 MHz 70% faster processor; a faster processor improves responsiveness
Higher resolution screen 1920 x 1200 vs 1440 x 1080 Around 50% higher resolution screen
Bigger bookstore 3.5 M book vs 3.2 M book (Kobo Books) Around 10% larger e-bookstore size; totalling paid & free books, this reader's bookstore offers a larger selection of reading material

Specifications Full list of technical specs


Aura HD  vs
Arc 7HD 
Screen resolution 1440 x 1080 1920 x 1200
Screen size 6.8" 7"
Pixel density 264 ppi 323 ppi
Screen type E-Ink LCD
Touchscreen Infrared Capacitive
Flashes screen black during page turns Yes No


Sync across multiple devices Yes Yes
Note taking Yes No
Web browser Yes Yes


Expansion slot microSD (up to 32GB) None
Memory 4 GB 16 GB

form factor

Size 128 x 175 x 11.7 mm 122 x 194 x 9.6 mm
Weight 240 g 341 g
Interface touchscreen touchscreen
Headphone jack No Yes


Aura HD  vs
Arc 7HD 
Input/Output port micro-USB micro-USB
Wi-Fi 802.11b/g/n 802.11b/g/n
Bluetooth connectivity No Yes

technical specs

RAM 1,024 MB 1 MB
Processor 1,000 MHz 1,700 MHz


Bookstore Kobo Books Kobo Books
EBookstore size 3.2 M book 3.5 M book
Free content free content 1.89 M books 1.89 M books
Customer loyalty program No No
Average NYT best sellers price $9.95 $9.95
Number of NYT top-selling titles offered+ 38 38
Reader-to-reader lending No No
Cloud storage Yes Yes
Reading apps iOS, Android, BlackBerry, PC and Mac iOS, Android, BlackBerry, PC and Mac
Additional electronic offerings newspapers, magazines and comics/graphic novels newspapers, magazines and comics/graphic novels
Has retail store locations No No
Kobo Aura HD
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Kobo Arc 7HD
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